Ballast water treatment and neutralization

Abstract

To provide a technology and a system for neutralization of effluent from ballast and / or a cooling and sterilizing system for cooling water.SOLUTION: A ballast water management (BWM) system has a construction in which ballast water is introduced into a ballast tank 320 via a ballast water line and the ballast water is discharged after a retention time in the ballast tank. It has a sterilizing source 330 configured to introduce a biocide agent into the ballast water, and a neutralization system 360 configured to introduce into the discharged ballast water, at the neutralizer introduction site, a neutralizer selected to at least partially neutralize the biocidal activity of the biocide at least one of a low mode, which is a first dose of the neutralizer, and a high mode, which is a second dose of the neutralizer greater than the first dose, during the introduction period.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] Cross-references to related applications This disclosure relates to the patent application filed on September 23, 2016, titled "Ballast Water Chlorination System and This claims priority rights to U.S. Patent Application No. 62 / 398,798 for the "Method," and This is incorporated herein by reference in its entirety for all purposes.

[0002] This disclosure relates to ship buoyancy disinfection and biofouling treatment systems and technologies, in particular to oxidation-reduction energy By utilizing the positional value and retention period, biological activity is suppressed, and the chlorine system generated electrocatalyzed is... This relates to regulating the neutralization of oxidizing agents or biocides. [Background technology]

[0003] Chlorine-based disinfection systems typically use dry chlorine gas, bulk sodium hypochlorite, Furthermore, either a chlorine or sodium hypochlorite electrolytic generator will be used on site. Electrolysis of seawater for chlorine generation is used in cooling systems such as those that utilize seawater as cooling water. It has been used to prevent biological attachment of insects. Self-cleaning tube-in-tube type electric The development of chemical cells has led to improvements in engine cooling systems, air conditioning systems, and other auxiliary systems. Electric chlorination disinfection (electr) is used in shipboard applications such as preventing biological fouling in auxiliary systems. Ochorination came into use.

[0004] Figure 1 shows a typical system layout for an electrochlorination disinfection system on land. Chloride-containing water such as seawater is recovered from source 1 and used to produce chlorine-based disinfectants or biocides. The disinfectant is pumped up by the pump 2 through the electrolytic generator 3. The drain from the device 3 is, in some cases, sent to the storage tank 5. Power supply 4 controls the electrolysis Current is supplied to the generator 3 to produce the chlorine-based disinfectant. The storage tank 5 is Typically, one or more air blowers 6 are used to dilute or disperse the by-product hydrogen gas to a safe concentration. It is equipped. Hydrogen gas removal is performed by a liquid cyclone instead of an air blower and tank. This can be carried out using one or more dosing pumps 7, typically with a distribution device 8. This allows chlorine to be administered to the point of use. The point of use is typically not limited. It is a water intake tank that supplies water to another process via a cooling loop 9. The dechlorination system (not shown) performs downstream treatment of the cooling water before discharging the cooling water. Neutralizing agents can be used for this purpose. Terrestrial systems use relatively high concentrations, for example, about 500 It is possible to produce hypochlorous acid solutions with chlorine concentrations ranging from ppm to 2,000 ppm. .

[0005] Ships utilize ballast water tanks to achieve stability and maneuverability. Typically, The ballast tanks are filled with water in one port after or during the unloading of cargo. When loading cargo onto a ship, ballast water may be released at another port. In effect, ballast The water will be moved from the first port to the second port, but in the second port aquatic pests There is a possibility of introducing (ANS), and this aquatic pest (ANS) poses a harmful ecological problem. This is a possibility.

[0006] The onboard ballast water management (BWM) system is schematically shown as an example in Figure 2. An electrochlorination system, such as a stem, can be used to produce ANS in ballast water. It reduces or inhibits physical activity. Typically, BWM systems use, for example, chlorine-based biocidicates. The ship is designed to minimize chlorine discharge even when chlorinated water containing the agent is directly injected. In the above system, seawater is typically supplied from a source such as a sea chest to an electrolytic generator. The power is supplied to the electrolytic generator 3 using the booster pump 2, and the electrolytic generator 3 is normally powered by the power supply 4. The chlorine-based biocide is produced by receiving the supply. The chlorine-based biocide originates from the electrolytic generator 3. The product stream containing the agent is injected into the sea chest 10 via the distributor 8. Water is released overboard. It can be discharged into D. Typically, the concentration of residual chlorine is measured using a chlorine concentration analyzer (not shown). It monitors and maintains the system. However, such a system requires ballast work to be performed. This does not take into account the variability in chlorine requirements across various ports where filtration may occur. For example, chlorine requirements may be affected by the concentration of nitrogen compounds in seawater, and Elementary compounds can vary greatly from port to port and from season to season. Due to fluctuations in chlorine requirements, In various onboard systems, desirable or acceptable concentrations such as high free chlorine concentrations This could result in an even higher concentration of oxidizing agent, which could damage the ballast water pump, piping, and Corrosion is accelerated or promoted not only in tanks, but also in ship systems and auxiliary unit operating devices. Furthermore, variability related to the chlorine analyzer control scheme is a potential issue. This may promote the undesirable formation of (DBP). [Overview of the project]

[0007] One or more aspects of this disclosure may apply to shipborne BWM systems. Therefore, the purpose of the BWM system is to treat ballast water in the BWM system. It can be assumed. In some cases, the BWM system may include the use of biocides. In some cases, the BWM system may include a biocide generator. For example, the BWM system includes a chlorination system that includes a biocide generator, and the biocide generator is, for example configured to generate a chlorine-based biocide to be introduced into the ballast water in the ballast tank and may include an electrolysis device. In a further case, the BWM further includes a dechlorination system configured to at least partially neutralize, specifically reduce, the biocide in the ballast water and may further include a first controller configured to adjust any one or more operations of the electrolysis device and the dechlorination system. The dechlorination system may include a source of a neutralizing agent selected to reduce the biocide, such as a chlorine-based biocide, in the ballast water discharged from the ship. The dechlorination system may further include an oxidation-reduction potential (ORP) sensor configured to measure the ORP value of the ballast water to be discharged. The dechlorination system may further include a second controller configured to adjust the addition of the neutralizing agent to the ballast water to be discharged in at least one of a first dechlorination mode, a second dechlorination mode, and a third dechlorination mode. When the ORP value of the ballast water to be discharged is less than the maximum desired value of about 200 mV, the second controller adjusts the addition of the neutralizing agent in the first dechlorination mode. When the ORP value of the ballast water to be discharged is less than about 200 mV, the second controller adjusts the addition of the neutralizing agent in the second dechlorination mode. When the ORP value of the ballast water to be discharged is at least about 200 mV and is the minimum desired value, the second controller adjusts the addition of the neutralizing agent in the third dechlorination mode and is the minimum desired value, the second controller adjusts the addition of the neutralizing agent in the third dechlorination mode and adjusts the addition of the neutralizing agent in the first dechlorination mode. When the ORP value of the ballast water to be discharged is less than about 200 mV, the second controller adjusts the addition of the neutralizing agent in the second dechlorination mode. When the ORP value of the ballast water to be discharged is at least about 200 mV and is the minimum desired value, the second controller adjusts the addition of the neutralizing agent in the third dechlorination mode and is the minimum desired value, the second controller adjusts the addition of the neutralizing agent in the third dechlorination mode To arrange.

[0008] In some embodiments, the dechlorination system is designed so that the neutralizing agent is discharged from the point of introduction. A second system configured to measure the ORP value of ballast water downstream of the ballast water. It also features an ORP sensor.

[0009] In some embodiments, the second controller controls the ballast water to be discharged. The system is further configured to adjust the addition of the neutralizing agent to achieve a high target dechlorination concentration of the neutralizing agent.

[0010] In some embodiments, the first high target dechlorination concentration is approximately 12 mg / L, and the second The high target concentration for option 2 is approximately 8 mg / L, and the high target dechlorination concentration for option 3 is approximately 8 mg / L. The fourth high target dechlorination concentration is approximately 5 mg / L, and the fifth high target concentration is approximately 3 mg / L. It is g / L.

[0011] In some embodiments, the first high target dechlorination concentration is approximately 6 mg / L, and the second The first high target concentration is approximately 3 mg / L, and the third high target dechlorination concentration is approximately 6 mg / L. The fourth high target dechlorination concentration is approximately 5 mg / L, and the fifth high target concentration is approximately 3 mg It is / L.

[0012] In some embodiments, the first low target dechlorination concentration is about 5 mg / L, and the second The first low target concentration is approximately 3 mg / L, and the third low target dechlorination concentration is approximately 5 mg / L. The fourth low target dechlorination concentration is approximately 3 mg / L, and the fifth low target concentration is approximately 1 mg / L. That is the case.

[0013] In some embodiments, the first low target dechlorination concentration is approximately 3 mg / L, and the second The low target concentration is approximately 1 mg / L, and the third low target dechlorination concentration is approximately 3 mg / L. The lower target dechlorination concentration for 4 is approximately 2 mg / L, and the lower target concentration for 5 is approximately 1 mg / L. That is the case.

[0014] In some embodiments, the first target dechlorination concentration is approximately 5 mg / L to approximately 12 mg / L The range is L, the second target concentration is in the range of approximately 3 mg / L to approximately 8 mg / L, and the third is The target dechlorination concentration is in the range of approximately 5 mg / L to approximately 8 mg / L, and the fourth target dechlorination concentration is The range is approximately 3 mg / L to 5 mg / L, and the fifth target concentration is approximately 1 mg / L. The range is approximately 3 mg / L.

[0015] In some embodiments, the first target dechlorination concentration is approximately 3 mg / L to approximately 6 mg / L. The second target concentration is in the range of approximately 1 mg / L to approximately 3 mg / L, and the third target The standard dechlorination concentration is in the range of approximately 3 mg / L to approximately 6 mg / L, and the fourth target dechlorination concentration is approximately The range is from 2 mg / L to approximately 5 mg / L, and the fifth target concentration is approximately 1 mg / L to approximately It is within the range of 3 mg / L.

[0016] In another aspect, embodiments of the present disclosure provide a method for managing ballast water in a ship. The method involves drawing ballast water into the ship's ballast tanks; and applying a chlorine-based biocide. To generate electrolytically; to introduce the chlorine-based biocide into the ballast water; the ballast Discharging the ballast water from the storage tank; low dechlorination mode and high dechlorination mode At least one of the neutralizations while the ballast water is being discharged from the ballast tank This includes dechlorinating the ballast water by adding the agent to the ballast water. If the ORP value of the discharged ballast water is less than approximately 200mV, dechlorination is considered low-level dechlorination. The process is carried out in filtration mode. The ORP value of the discharged ballast water is at least approximately 200 mV. In this case, dechlorination is performed in high-dechlorination mode.

[0017] In some embodiments, the method involves a second ballast water discharge after the addition of a neutralizing agent. Furthermore, measuring the ORP value allows for confirmation of ballast water dechlorination. Dechlorination of discharged ballast water is performed by (a) or (b) below. (a) When dechlorination treatment is performed in low dechlorination mode, the second ORP value is before the addition of the neutralizing agent. (b) The ORP value of the ballast water is below the limit, and (b) when dechlorination treatment is performed in a high dechlorination mode. In total, the second ORP value is less than approximately 300mV. Check whether at least one of the following is true.

[0018] In another embodiment, an embodiment of the present disclosure provides a ballast water supply from a ballast water source to a ballast water supply. It is configured to be introduced into a ballast tank and to discharge the ballast water from the ballast tank. We provide a BWM system that is fluidly connected to the ballast water system of a ship. This refers to the first ORP value of ballast water from the ballast water supply source and discharge from the ballast tank. Arranged to measure at least one of the second ORP values ​​of the ballast water. A device that electrolytically generates an oxidation-reduction potential (ORP) sensor and a hypochlorite biocide. The generated hypochlorite biocide is then introduced into the ballast water. A chlorination system arranged in such a manner; and at least a low dechlorination mode and a high dechlorination mode. On the other hand, the system is configured to introduce a neutralizing agent into the ballast water discharged from the ballast tank. It has a dechlorination system that has been constructed.

[0019] In some embodiments, the BWM system receives ballast water from a ballast water supply source. A ballast water pump positioned to draw out ballast water and introduce it into the ballast tank. and; arranged to remove at least some of the solids in the ballast water from the ballast water source. The filter was used; and the third ORP value of the ballast water discharged from the ballast tank was measured. It further comprises a second ORP sensor positioned to determine the value.

[0020] In some embodiments, the BWM system is fluid-connected upstream of the chlorination system. The chlorination system further includes a source of chloride-containing water, and the chlorination system then... It is further configured to electrolyze a chlorite biocide.

[0021] In some embodiments, the BWM system generates hypochlorite biocides. A chlorination sys configured to introduce at least a portion of the chlorine into the ballast water upstream of the filter. It also includes Tem.

[0022] In some embodiments, the BWM system is a ship cooling water system, a sea chest , and further having a source of chloride-containing water, which is one of the water storage tanks.

[0023] In some embodiments, the BWM system uses a ballast based on a third ORP value. A controller configured to confirm the dechlorination of ballast water discharged from the tank Furthermore, they possess

[0024] The attached drawings are not intended to be drawn to a fixed scale. In the diagram, identical or substantially identical components are represented by similar numbers. For clarity, all components are labeled in all drawings. Not necessarily. In drawings: [Brief explanation of the drawing]

[0025] [Figure 1] Figure 1 is a schematic diagram of a terrestrial electrochlorination system; [Figure 2] Figure 2 is a schematic diagram of the onboard electrochlorination system; [Figure 3] Figure 3 is a schematic diagram of an onboard processing system 200 according to at least one aspect of the present disclosure; [Figure 4] Figure 4 is another schematic diagram of a processing system according to some aspects of the present disclosure; [Figure 5] Figure 5 is an explanatory diagram of a control system that may be implemented in one or more aspects of this disclosure; [Figure 6] Figure 6 is a schematic diagram of an onboard disinfection control scheme according to several aspects of the present disclosure; [Figure 7] Figure 7 is a schematic diagram of a neutralization control scheme that can be implemented according to some aspects of this disclosure. [Modes for carrying out the invention]

[0026] One or more aspects of this disclosure relate to ballast water management systems. This provides a ballast water management system and technology that can reduce the possibility of dispersion of ANS. One or more aspects of the disclosure relate to an electrochlorination system in a ballast water management system. Further aspects of this disclosure relate to a ballast water management system that utilizes the electrolysis of ballast water. To provide. Other aspects of this disclosure involve maintaining a sufficient oxidation-reduction potential value of ballast water to achieve ANS. To provide a ballast water management system and technology for purification. Other aspects of this disclosure relate to ballast water Before water can be discharged, without the use of further purification subsystems and technologies, biocide concentration The present disclosure provides a ballast water management system and technology that controls ballast water. The system and technology reduce the adverse effects of excessive or undesirable levels of oxidative biocides. The present disclosure provides a method for discharging biocides at acceptable levels. One or more further aspects of this disclosure relate to discharging biocides at acceptable levels. This includes a ballast water management system that provides last water. Further aspects of this disclosure include an existing ship To provide improvements or modifications to marine ballast water management systems. One or more aspects of this disclosure may Depending on the circumstances, disinfection systems and technologies for treating ballast water in ship buoyancy systems, and Furthermore, relating to biofouling prevention control or treatment in other ship systems. One or more aspects of this disclosure are: This can be particularly focused on onboard treatment systems for cooling water systems and ballast water systems. Further aspects of this disclosure may be related to facilitating any of the above aspects. do.

[0027] In some cases, the ballast water management system may operate via one or more ballast lines, independently. Fluidly connected to a ballast water source or a combination of one or more ballast water sources. It has one or more ballast tanks. In some cases, the ballast water management system is , further comprising a fungicide or biocide, or a source of biocides. In such cases, biocides neutralize and inactivate organisms, typically microorganisms in ballast water. To transform, disinfect, or biologically dissolve and inactivate, or at least further It is any agent that makes biological activity impossible. In some configurations, the biocide It may be a chlorine-based oxidizing agent. In some further embodiments of the ballast water management system, The biocides can be produced in situ. For example, the biocides The agent's source is configured to generate chlorine-based biocides from chloride-containing water through electrolysis. They may have an electrolysis apparatus.

[0028] The operation of the ballast water management system is based on at least one of the measured characteristics of the ballast water. It is possible. Some aspects of this disclosure still provide a method for disinfecting ballast water. Alternatively, ensure that the ballast water is disinfected, preferably to prevent corrosion of the water-containing structure of the ballast water system. To minimize or reduce the amount of potentially hazardous disinfection by-products. It is possible to provide the lowest level of biocide, limiting it to formation. Some aspects of this disclosure This refers to water that is being treated or to be treated, for example, ballast water introduced into a ballast tank. This disclosure can provide a system that is at least partially based on the redox potential. Some particular embodiments provide a minimum level of biocide, for example, available free chlorine. Stems and technologies, or effective inactivation of biological activity or disinfection of ballast water, We provide systems and technologies that include biocide concentrations, while also addressing the corrosion of ship structures. Alternatively, minimize or at least reduce the possibility of using auxiliary units. Furthermore, in some cases, the formation of potentially dangerous disinfection byproducts may be minimized or reduced. Both will decrease.

[0029] In some cases, the ballast water management system may drain ballast water through the ballast water line. It is configured to be introduced into a ballast tank and to discharge ballast water from the ballast tank. This is possible. The system is typically configured to introduce a biocide into the ballast water. The source of the biocide, and the first dose of the neutralizing agent, which is low mode and neutralization, during the introduction period. In at least one of the second doses of the drug, the antidote, is administered at the site of introduction of the antidote. and a neutralization system configured to be introduced into the discharged ballast water. Typically The first dose is less than the second dose, and the neutralizing agent reduces the bactericidal activity of the biocide to at least It is selected to partially neutralize. In some configurations, the neutralization system is used during the introduction phase. During this time, the neutralizing agent is introduced into the discharged ballast water in high mode. The system is the The ballast water is arranged to be pumped into the ballast tank via the last water line. The system further comprises a ballast water pump. Physically connected, at least a portion of the solids are removed from the ballast water and the ballast tank Includes a filter positioned to introduce the biocide. The biocide source is a small amount of biocide. At least a portion of it is configured to be introduced upstream of the filter. The source of the biocide is An electrolysis apparatus configured to electrolyze biocides from a source of chloride-containing water. Including. The sources of the chloride-containing water include the ship's cooling water system, sea chest, and chloride-containing It is one of the water storage tanks. The source of the biocide is a fluid from the ballast water line. The system includes an inlet that is fluidly connected to a source of chloride-containing water that is isolated. The first ORP value of the discharged ballast water upstream of the neutralizing agent introduction site is measured. The system further includes a first ORP sensor configured as follows: After the introduction period, the first ORP value If the ORP value is below the target value, the neutralization system will switch to OFF mode and neutralize the neutralizing agent. The introduction of the system will be discontinued. The system will discontinue the discharge ballast water downstream of the neutralizing agent introduction site. A second ORP sensor configured to measure a second ORP value, and the first ORP If the difference between the value and the second ORP value is within the acceptable ORP range, then the discharged ballast water The system further comprises a controller configured to confirm the neutralization of the biocide. The summation system, after the implementation period, if the first ORP value is less than the target ORP value, The introduction of the neutralizing agent in mode is discontinued, and the neutralizing agent is introduced in low mode. This involves measuring the second ORP value of the discharged ballast water downstream of the neutralizing agent introduction site. The system further comprises a second ORP sensor configured such that the second ORP value is equal to the first ORP value If the ORP value is less than the stated value, the controller neutralizes the biocide in the discharged ballast water. It may be configured to confirm that after the implementation period the first ORP value is greater than the target ORP value. If so, the neutralization system continues to introduce the neutralizing agent in high mode. The second ORP If the value is smaller than the suitable ORP value, the controller will control the sterilization of the discharged ballast water. The system may be configured to confirm the neutralization of the biological agent.

[0030] Some aspects of this disclosure also relate to the discharge of ballast from a ballast tank through a ballast line. It can also be targeted to manage the discharge of water. Managing the discharge ballast The steps include measuring the first ORP value of the ballast water and adding a neutralizing agent to the ballast water during the introduction period. The step may include introducing a fixed dose. The neutralizing agent is typically the efflux ballast. It is selected to at least partially neutralize the biocide activity of the biocide in the water. This means that after introducing the neutralizing agent into the discharged ballast water, the second OR of the discharged ballast water The P-value is measured, and if the first ORP value is less than the target ORP value after the implementation period... , discontinuing the introduction of the neutralizing agent, or the first ORP value becoming the target ORP value If the value is greater than the specified amount, this may include continuing the administration of the neutralizing agent at the specified dose. The material may be obtained electrolytically from chloride-containing water from a water source, where the water source is the ballast It is fluidly isolated from the trine. At least two fine particles or organic matter having a size of at least approximately 40 microns Some of it is removed from the ballast water before it is introduced into the ballast tank. The fine particles or the organic matter, at least the first portion thereof, may be used in the ballast water. Before removal, the first portion of the biocide may be introduced into the ballast water. And before being introduced into the ballast tank, the second portion of the biocide is (the fine particles It may be introduced into the ballast water (from which the first ORP has been removed). This further includes confirming the neutralization of the biocide based on the difference between the value and the second ORP value. That's fine. The target ORP value is typically around 200mV.

[0031] Another aspect of this disclosure is a non-temporary computer-readable medium having computer executable instructions. It is capable of targeting the body, and when executed by the controller, the controller The computer-executable command causes the controller to perform the following: ballast tank or The oxidation-reduction potential of discharged ballast water, which is to be discharged through the ballast lines of a ship, is represented by the oxidation. Receiving the reduction potential (ORP) measurement, during the introduction period, the discharged bag from the neutralizing agent supply source. A neutralizing agent is introduced into the final water at a first dose, and the neutralizing agent is biocicide in the discharged ballast water. Selected to neutralize at least part of the biocide activity of the agent, and the measured OR If the P value is less than the target ORP value, the introduction of the neutralizing agent will be discontinued after the introduction period, or If the measured ORP value is less than the target ORP, the first dose after the induction period is administered. Reduce the dose to a second dose, or if the measured ORP value is less than the target ORP value. If the dose is also large, the introduction of the neutralizing agent after the introduction period shall be maintained at the first dosage rate. .

[0032] In some configurations, the system includes, for example, a source of ballast water such as seawater; ballast A sensor is positioned to measure the oxidation-reduction potential of water and transmit a measurement signal representing it. Substitutes; biocides supplied to introduce biocides into ballast water; and sensors It is positioned to receive measurement signals from, and the measurement signals are typically around 200mV~ The output signal is at least partially based on the processed ORP value, which is in the range of approximately 1,000 mV. It is designed to generate and transmit to the biocide supply source, and to regulate the amount of biocide introduced into the ballast water. It has a controller. In some cases, the source of the biocide is chloride-containing water or It also has an electrolytic chlorination system configured to generate halogenated biocides. In other cases, the electrolytic chlorination system can use ballast water, seawater, water containing chloride species or The supply source of these combinations may be equipped with a fluid-connected inlet, and also a biocide The electrolytic chlorination system may be configured to generate hypochlorite compounds. Downstream of a source of ballast water, seawater, water containing chloride species, or a combination thereof, The outlet of the supply source may be provided with a first (exhaust) outlet that is fluidly connected. Therefore, the electrolytic chlorination system is located upstream of the ballast tank inlet, and electrolytic chlorination The system may also have a second (exhaust) outlet that is fluidly connected downstream of the inlet. Electrolytic chlorination systems are typically configured to generate hypochlorite compounds and oxygenated species. It is done. In some cases, the output signal is typically the electrical component of the electrolytic chlorination system. The current density in the dissolving device should be at least approximately 1,000 amperes / m³. 2 Adjust to the ship's water treatment system. In a further embodiment of the stem, the processed ORP value is in the range of approximately 500mV to approximately 750mV. Furthermore, the treatment ORP value can be based on instructed or regulated disinfection requirements. Laura adjusts the amount of biocide introduced into the sea chest before introducing it into the ship's cooling system. The system can also be configured to achieve a target biofouling control value for water. The electrolysis apparatus may also be equipped with a degassing tank that is fluidly connected to the downstream side. The source of the water, seawater, water containing chloride species, or a combination thereof flows into the onboard cooling water system. It can be a sea chest that is physically connected.

[0033] One or more aspects of this disclosure relating to the management of ballast water through ballast lines This concerns the treatment of ballast water introduced into ballast tanks from the water supply source. In some embodiments, the method for treating ballast water introduced into a ballast tank is, A biocide is introduced into the water; the amount of biocide introduced is adjusted to approximately 200 mV to approximately 1, This may include achieving a target oxidation-reduction potential value for water within the range of 000mV. The introduction of the substance involves generating a biocide stream containing at least one halogenated species. It is also acceptable to do so. The amount of biocide introduced can be adjusted by adjusting the operating parameters of the biocide generator. This includes achieving a target water oxidation-reduction potential value in the range of approximately 500mV to approximately 750mV. It may be so. The method of treating the water introduced into the ballast tank is also part of the biocide flow. This may include introducing it into the water source. The method of treating the water introduced into the ballast tank is Furthermore, by adjusting the amount of biocide added to the water source, the desired biocide concentration for controlling biological adhesion can be achieved. It may include doing. In some advantageous embodiments, the method for treating water is The electrolysis apparatus includes generating a biocide flow by electrolyzing chloride-containing water. It may be so. Electrolysis of some of the water from the water source releases biocides containing hypochlorite, and Depending on the circumstances, this may include the generation of biocides containing hypochlorite and oxygenated species. It is also acceptable. The source of chloride-containing water is a seawater fluid connected to the ship's cooling system. It may consist of a chest. In some cases, the source of chloride-containing water is ballast water. It is fluidly isolated from the ballast line that introduces it into the ballast tank. However, In other configurations, the source of chloride-containing water is seawater circulating through ballast lines, A cooling system having a ballast tank, a separate storage tank, or a combination thereof. It is also possible. In other configurations, the source of chloride-containing water may be, for example, from a sea chest. It could be a storage tank that can be filled at least partially with seawater.

[0034] One or more aspects of this disclosure relate to a ballast tank connected to a seawater source via a ballast line. This invention relates to methods for improving ballast water systems that include the following: In some embodiments, The method for improving the last water system is to connect the inlet of the electrolysis device to a seawater source, and the electrolysis device The outlet is connected to the inlet of the deaeration tank and is positioned downstream of the electrolysis device and the outlet of the deaeration tank. The oxidation-reduction potential sensor may also have a controller connected to it. The controller adjusts the operating parameters of the electrolysis apparatus and is introduced into the ballast tank. To achieve a target oxidation-reduction potential value in the range of approximately 200mV to 1,000mV in seawater. It is preferable to configure it as follows. The target oxidation-reduction potential value is in the range of approximately 500mV to approximately 750mV. It is possible. An improved method for the ballast water system is to remove water from the inlet of the ballast tank. This may include connecting the outlet of the gas tank. Furthermore, the ballast water system The improvement method for the M includes connecting the outlet of the degassing tank to a seawater source. i. This method involves a filter connected between the seawater source and the ballast tank, with oxidation reduction on the upstream side. It may also include the placement of a primary potential sensor. The seawater source is advantageously chloride-containing. It may consist of a sea chest or reservoir for storing water. The onboard water treatment system is It may have a target oxidation-reduction potential value in the range of 650 ppm to 750 ppm. The sensor may be equipped with a gold electrode at its tip. The onboard water treatment system may further include ballast To measure at least one of the free chlorine concentration and oxidation-reduction potential of water in a tank It may also be equipped with a second sensor. The onboard water treatment system discharges from the ballast tank. At least one of the following: the free chlorine concentration, total chlorine concentration, and oxidation-reduction potential value of the water to be discharged. It comprises a second sensor positioned to measure and transmit a second measurement signal representing that measurement. It may also be possible. The onboard water treatment system further receives a second measurement signal and performs a second measurement. The signal and the smaller of the target free chlorine concentration, target total chlorine concentration, and second target oxidation-reduction potential value. It is configured to generate a second output signal based on at least one, or at least partially, one of the following. It may have a controller.

[0035] One or more aspects of this disclosure relate to onboard water treatment systems for vessels in waters. The system includes a water source containing at least one type of chloride, and at least one of the water sources and water bodies. A filter is fluidically connected to one side, and a ballast is fluidly connected to the downstream side of the filter. The ping and the signal display of the oxidation-reduction potential of seawater are positioned to measure and transmit. A sensor, a biocide supply source positioned to introduce biocides into the ballast tank, It is positioned to receive the signal measured from the sensor, and the measured signal is approximately 200mV~ An output signal that is at least partially based on a target oxidation-reduction potential value in the range of approximately 1,000 mV. It occurs, is sent to the biocide supply source, and the water introduced into the ballast tanks and filters is small. A controller configured to adjust the amount of biocide introduced to one side, or otherwise, It's okay if you do.

[0036] Further embodiments relating to onboard water treatment systems include seawater, water containing chloride species or The ship may have a source of these mixtures, which, when the ship is at anchor, is seawater a storage container used for storing water or mixtures thereof containing chloride species It is permissible to do so. Therefore, for example, seawater can be stored in one or more reservoirs, and the ship can enter a freshwater area. If passing through, use by a source of one or more biocides as described herein. This is possible. In fact, depending on the embodiment, a ship equipped with two or more ballast tanks can do this. One of the ballast tanks will be used to store seawater, and then it will be used as a source of biocides. At least a portion of stored seawater can be used as a source of chloride-containing water for this purpose. ru.

[0037] One or more aspects of this disclosure provide control for preventing biofouling in marine water systems. For example, A substance produced electrocatalytically, typically used for disinfection, is used with an acid used for disinfection. It is also possible to suppress biofouling in a ship's cooling system at an oxidizing agent concentration lower than that of the oxidizing agent. .

[0038] Chlorine demand may be related to the presence of inorganic and organic compounds that react with chlorine. Until it is filled, there will probably be no free chlorine available for disinfection. Nitrogen compounds If present, chloramine is considered a weaker biocide than free chlorine. Chlorine (Cd) can be produced. The chlorine dose (CD) is generally determined by the relationship in equation (1). As shown, total residual chlorine (TRC) and chlorine demand (Demand chlorine It depends on ).

number

[0039] The total residual chlorine can be expressed by the relationship shown in equation (2).

number

[0040] Free chlorine, such as HOCl, typically follows the relationship in equation (3) when present. And then it dissociates. [C1] HOCl→H + +OCl - (3)

[0041] Hypochlorous acid (HOCl) is a preferred biocide. However, using TRC Even if the characteristics of the chlorine treatment effect are clarified, the effective TR may vary due to variability in chloramine concentration. Because the range of C can be as low as less than 5 ppm to as high as 40 ppm, in particular, Regarding the treatment of ballast water pumped onto ships from contaminated harbors, accurately predicting the disinfection effect is crucial. It is impossible to do so. When using excess free chlorine to address variations in requirements, As a result, there is a risk of undesirable corrosion, such as corrosion of the steel structure of the ship, and furthermore, Potentially toxic disinfection byproducts such as halomethanes (THM) are produced, but this is typical. This depends on the chlorine requirement and the level of free available chlorine.

[0042] Therefore, according to this disclosure, for example, a biocide can be used to disinfect ballast water to a level that is effective in disinfecting it. To provide systems and technologies for reliably controlling addition or introduction. In fact, several of the disclosures According to this embodiment, a system and technology are provided that reduces the possibility of perchlorination. Further disclosure In another embodiment, an effective killing method that minimizes or reduces the possibility of corrosion and by-product formation. This disclosure relates to systems and technologies that enable the selection, monitoring, and adjustment of drug dosages. The specific characteristics are independent of local seawater conditions such as chlorine demand, pollution levels, and pH. In the harbor, it provides effective disinfection of ballast water, and the measured ORP or This disclosure maintains sufficient oxidative intensity of the biocide, as expressed by its redox potential. By utilizing this method, effective disinfection can be reliably performed.

[0043] At least one ORP probe or sensor configured to measure the oxidation-reduction potential or the oxidation-reduction of water can be utilized in one or more embodiments of the present disclosure. The measured potential is determined by the most powerful oxidizing or reducing agent in water and, in some aspects of the present disclosure, can typically be HOCl. However, since seawater typically contains about 50 ppm to 60 ppm of sodium bromide, seawater disinfection using chlorine can be at least partially carried out by brominated species such as hypobromous acid, which are converted by Equation (4). [Chemical Formula 2] HOCl + NaBr → NaCl + HOBr (4)

[0044] The oxidation-reduction potential E for a specific application h is usually based on the Nernst equation (5). [Number] In the above formula, E h is the oxidation-reduction potential of the reaction, E 0 is the standard potential, RT / nF is the Nernst number, A is the activity of the oxidizing agent, and A ox is the activity of the reducing agent. red

[0045] Chlorine usually has a standard potential of 1490 mV, and bromine usually has a standard potential of 1330 mV. [[ID=5」]]Within the typical pH range of 7 to 8.4 for seawater, the concentration of HOBr is more stable than the concentration of HOCl. For example, at pH = 8.0, the non-dissociated HOBr species is about 83%, whereas the HOCl species is about 28%. Therefore, for seawater disinfection with chlorine, it is necessary The required ORP value may differ from the value set for freshwater.

[0046] Although the likelihood of corrosion of piping and other moist hull structures is low, the ballast water treatment process Establishing ORP values ​​for sea urchin seawater treatment is important for disinfection or biofouling control. This can be advantageous in facilitating the maintenance of Bell's oxidizing agent concentration, such as chlorine concentration. Continuous chlorine For certain systems, including chemical systems, the chlorine level (or oxidizing agent level) is approximately 0. Maintain the concentration within the range of 5 ppm to 1.0 ppm, preferably within the range of 0.1 ppm to 0.2 ppm. It is thought that this is possible. Therefore, depending on the embodiment, the upper limit of the processed ORP value is Provide a corresponding chlorine level of approximately 1 ppm, or conditions that do not exceed the permissible corrosion rate. It can be determined by using empirical information, ORP level and measured corrosion rate. A relationship can be established, at least partially. For example, the annual corrosion rate of steel at 1 mill. Using this as an acceptable guideline, it is possible to define at least a portion of the upper limit of the processed ORP value. The lower limit of the processed ORP value is determined to ensure that the desired inactivation effect is sufficiently achieved. This can be done, for example, by using empirical information to determine the relationship between ORP level and deactivation efficiency. It is possible to establish this.

[0047] Factors that affect the sterilization effect of free chlorine residue technology include chlorine residue concentration, contact time, and pH. This includes water temperature. pH may vary from port to port or from season to season. For example, seasonal algal blooms can create seawater with a high pH. Output-based processing systems typically address the worst-case scenario, namely high pH conditions. Because it is designed to do so, under conditions where the pH of seawater is lower, excess salt in ballast water Chemical reactions can occur, which in turn increases the likelihood of corrosion and thus the potential for DBP formation. .

[0048] Unlike residual chlorine analyzers, which measure chlorine concentration rather than disinfecting power, ORP sensors... This provides a qualitative representation of the oxidation (electron consumption) potential or reduction (electron supply) potential of treated water. .

[0049] Further observation of the experimental data revealed that when the amount of reducing agent is constant, the oxidation-reduction potential and residual chlorine concentration are different. Both can be used as parameters for the inactivation rate, but the amount of reducing agent changes. When a change occurs, it becomes clear that only the oxidation-reduction potential remains available.

[0050] The water treatment process disclosed herein uses a batch of seawater that can typically be used as ballast water. This is carried out. In such cases, the concentration of the oxidizing agent, such as chlorine, depends on whether the oxidizing agent is an inorganic or organic substance. And because it reacts with biological substances, it typically decreases over time. Some of the disclosures In this embodiment, the ORP value of the treated water is controlled based on the dynamic concentration of the water being treated. To control. Therefore, ORP control is usually performed when the biocide is at least partially, preferably almost completely Then, the ANS is deactivated, for example, by a time delay loop, while the corrosion of the ship structure Give it time to be effective in minimizing the potential harm of food and DBP production. It is designed to do so.

[0051] Figure 3 shows a schematic of the onboard processing system 200 according to at least one aspect of the present disclosure. The processing system 200 fluidly supplies fluid to at least one ballast tank 120. It may also be equipped with a seawater source, such as the connected sea chest 110. Processing system 20 0 is chlorine-based disinfection, where the chlorine dosage level is controlled by the oxidation-reduction potential of the treated water. This could apply to water treatment systems. For example, treatment system 200 may have a chlorine dosage level The oxidation-reduction potential of the treated seawater is made variable, while the target or desired oxidation-reduction potential of the ANS is controlled. The ORP control system may be provided to maintain the level at which it brings about the desired outcome. In some aspects, the water quality treated by the treatment system 200 is related to the water quality being treated. It does not provide residual hypochlorous acid (HOCl), which is preferably sufficient for disinfecting treated seawater. It can be maintained at a certain level. For example, the treatment system 200 can maintain the pH of the water to be treated. This eliminates the need to correct for contamination levels or both. To simplify things, system 200 shows the measurement characteristics of the water introduced into ballast tank 120. At least one probe or sensor 210 is positioned for this purpose, and the probe or sensor At least one unit positioned to receive a measurement signal representing the measurement characteristics from 210 It may also include a controller or control system C. As described above, this In a non-limiting embodiment, a sensor or probe capable of indicating the ORP level of water is provided. It is required. The treatment system 200 further introduces at least one biocide into the water. A supply source of at least one disinfectant or biocide arranged for this purpose. It may also be equipped with 20. For example, a chlorine supply system may be used to introduce it into tank 120. At least one disinfectant can be introduced into the treated water. As schematically illustrated. Furthermore, a control feedback loop is provided to regulate the introduction of biocides into the water to be treated. This allows for the insertion of at least one ORP probe directly into the water piping, or for easier maintenance. To achieve this, it can be installed within a circulating loop. In other cases, ORP monitoring and control The trolling system is equipped with a pump 240 that extracts a tributary from the ballast water supply main pipe 110. It may be done. The pipe and flange connecting the ORP probe and the main pipe are ORP probe To prevent stray currents that could harm the bristles or create undesirable electrolytic corrosion conditions. It is desirable to manufacture the probes from the same material as the main pipe. At least one probe should be made from the same material as the main pipe. It is desirable to have an electrical potential, which can be achieved by grounding the probe to the main pipe. ru.

[0052] Another schematic diagram of the processing system 300 in some aspects of this disclosure is shown in Figure 4. The system 300 includes a seawater source such as a sea chest 310 located inside the vessel. It may also be. System 300 further typically has at least one ballast water tank It is equipped with or can be fluidly connected to a buoyancy system comprising the 320. In this embodiment, the system 300 includes, preferably, at least the sea chest 310. At least one oxidizer or biocide is fluidically connected to one ballast tank 320. A source of the agent 330 may also be provided. In yet another embodiment, the Sea Chest 3 10 is fluidly connected to at least one system of a ship that uses seawater. For example The SeaChest 310 is fluidly connected to at least one cooling water system (CWS) of the vessel. And seawater can be supplied to it. Furthermore, a source of oxidizing or disinfecting agent 330 It may be fluidly connected to at least one cooling water system CWS. Source 330 It is possible to electrochemically convert the precursor species into at least one disinfectant or biocide compound. The electrolysis apparatus may include at least one electrical drive device, such as the electrolysis apparatus 332. The power source 330 further supplies electrical energy to the device 332, to the sea chest 310 or Facilitating the electrocatalytic conversion of chlorine-containing water supplied from the cooling water system (CWS) to biocides. It may have at least one power supply 334 positioned for this purpose. Power source 330 Furthermore, the amount of any gases such as hydrogen gas generated during the electrocatalytic biocide production process is reduced. At least one degassing unit operating device 336 that facilitates removal by at least one type of ventilation opening V It may also be equipped with: At least one outlet of the supply source 330 is connected to the tank 320. This is also acceptable. The outlet of the degassing unit operating device 336 is preferably fluidly connected to the tank 320. In the preferred embodiment, the outlet of the supply source 330 is further connected to the sea chest 310. Then, at least from either the electrolysis apparatus 332 or the degassing unit operating apparatus 326 A flow is created containing one biocide. As schematically illustrated in Figure 7, cis The Tem300 can utilize tributary extraction technology, and in this case, Sea Chest A portion of the seawater taken from 310 is introduced into the supply source 330, and into the ship's buoyancy system 320. The remaining seawater to be introduced is filtered by at least one filter 340.

[0053] The oxidizing agent source 330 is an electrolysis apparatus 332, which contains at least one oxidizing species ( (Not limited to this) comprising at least one electrically driven device that generates The system 300 may further include at least one component of the system 300. At least one sensor or probe positioned to exhibit at least one characteristic or property A monitoring system may be provided that includes the following. As illustrated in the illustration, the monitoring system M measures at least one property of the water from the sea chest 310 in the main pipeline 342. At least one sensor 352 positioned for this purpose, and one or more of the buoyancy systems 320 At least one of the buoyancy system 320, such as the properties of water in the ballast tank At least one sensor 354 positioned to measure properties, and optionally one or more It is positioned to measure the properties of the water discharged from the upper ballast tank to outlet or discharge port D. The system 300 is equipped with at least one sensor 356. It may also include another controller or control system C. Stem C adjusts or modifies at least one operating parameter of system 300. It is preferable to configure it as follows. In a particular embodiment of this disclosure, control system C is supervised The system can receive at least one input signal from at least one sensor in the visual system. Yes, it is possible. In a further specific aspect of this disclosure, the control system C is supplied by source 330 For both the buoyancy system and the buoyancy system, adjust at least one operating parameter. This is possible. In other specific aspects, the control system C controls the ballast tank It can monitor and control drainage operations from 320.

[0054] During buoyancy adjustment operations, including but not limited to ballasting, chlorine from supply source 330 Flows containing oxidizing agents or biocides are controlled by one or more chlorine distributors in a sea chest. It can be introduced into 310 and the ballast water main pipeline 342. Chlorine in the main pipeline 342 The oxidation-reduction potential of the treated water is monitored by a monitoring system equipped with a sensor 352, which may be an ORP sensor. It can be monitored by the MU. Sensor 352 is located downstream of filter 340. Although illustrated as such, in other embodiments, in order to indicate or show the properties of seawater, Sensor 352 located upstream of filter 340, or upstream of filter 340 or This can also include additional sensors located within the Sea Chest 310. Control System C It receives one or more instructions or displays from the monitoring system, preferably at least one table Based on the indication, at least one operation of the system, such as the operating parameters of the supply source 330 The parameters can be configured to be adjusted as needed. For example, a control system C sets the ORP of the treated water in one of the unit operating devices of system 300 to a preset value. It can be configured to maintain within acceptable or desirable drainage limits. Therefore, during drainage or deballast operations, for example, from the supply source 360 ​​of reducing agents or neutralizing agents In addition, at least one reducing agent or neutralizing agent can be introduced into the treated ballast water being discharged. Cut.

[0055] Therefore, further aspects of this disclosure relate to ORP-based control systems and technologies, as well as Furthermore, for example, preferably during a deballasting operation, Before release, the concentration of residual biocides in treated water such as ballast water (e.g., chlorine and / or Neutralization: Removing or reducing the concentration of hypochlorite to an acceptable level such as the target ORP value. This may include a water subsystem and methods. The target ORP value may be based on regulatory limits. Dechlorination can be carried out using, for example, sodium bisulfite, hydrogen peroxide, and ferrous salts (but not limited to these). At least one reducing agent (not specified) can be used. Neutralization of chlorine is A dechlorination controller, for example, a first controller, is operated or configured to control the discharged ballast Neutralization or dechlorination of biocides in the water, within the range of typical untreated raw seawater, approximately 150 The range should be between mV and approximately 350mV, preferably between approximately 200mV and approximately 300mV. This may be achieved by other neutralization techniques, such as activated carbon, ultraviolet systems, and gold. Any type of catalyst-fixed bed may be used.

[0056] As an option, the same ORP control device can be used to appropriately configure ORP settings during debalancing. It can be used for both ballast operation and deballast operation by changing the settings. If ballast water, seawater, water containing chloride species, or a combination thereof, It may be introduced from to 110 to tank 120, and as a result the tank The ORP value of the water inside is, for example, 300mV, or even less than 100mV, which is generally desired. It has an ORP value below the level or acceptable level.

[0057] In certain embodiments, the ORP sensor 356 measures the ORP of the discharged water from the buoyancy system. The value or oxidizing agent concentration can be measured; control system C is in the wastewater The amount of reducing agent added to neutralize any oxidizing agent or biocide to at least a portion or to an acceptable limit. The operating parameters of the oxidizing agent neutralization system 360, such as the dosage, are preferably controlled by the sensor 356. It can be adjusted based on the measurement signal from. In some cases, the discharged ballast To achieve a desired level of residual oxidizing agent concentration in water, a certain concentration of total residual oxidizing agent is used as an OR It may be used in place of or in conjunction with the P sensor. Desired drainage limits are indicated in the jurisdiction. It may vary to meet the requirements. For example, the acceptable chlorine level in wastewater is approximately 1 mg / L. It may be less than approximately 0.5 mg / L in some cases, and less than 2 ppm in some cases.

[0058] In a particular embodiment, the ORP sensor 354 measures the ORP of the discharged water from the buoyancy system. The value or oxidizing agent concentration can be measured; control system C is in the wastewater The amount of reducing agent added to neutralize any oxidizing agent or biocide to at least a portion or to an acceptable limit. The operating parameters of the oxidizing agent neutralization system 360, such as the dosage, are preferably controlled by the sensor 354. It can be adjusted based on the measurement signal.

[0059] In a particular embodiment, the control system C has at least one of three modes. Another method involves adjusting the addition of a neutralizing agent, preferably a dechlorinating agent, to the water that is to be discharged. The three modes are, for example, off mode, low mode, and high mode. .

[0060] In some configurations, ballast water begins to be discharged from the ballast tank 320. If the amount of ballast water to be removed is greater than the target value, the oxidizer neutralization system 360 will automatically Switching to high mode. This high mode is maintained for 3-5 minutes, and the ORP sensor 354 Allows the system to reach a steady state. Once a steady state is reached, or after 3-5 minutes, add the neutralizing agent. The mode automatically switches based on the signal from sensor 354. The off mode is excluded. The ORP value of the ballast water being discharged is below the target value, for example, below approximately 300 mV. , or in other cases, it operates when the voltage is less than approximately 200mV. Further alternative configurations include emission If the ballast water has an ORP value of less than approximately 200mV, the low mode will be activated. The high mode is activated when the ORP value from sensor 354 is at least approximately 200mV.

[0061] In a particular embodiment, the ORP measurement from the ORP sensor 356 is obtained from the oxidizing agent neutralization systolic acid This provides verification that Tem360 is engaged and operating in a compliant manner within acceptable limits. For example, the verification process will proceed as follows: When the oxidizing agent neutralization system 360 is in off mode, the measurement from the ORP sensor 356 is O The measured value of RP sensor 354 should be the same as ±50mV, or in the oxidizing agent When the ORP system 360 is in low mode, the measurement value of the ORP sensor 356 is The reading should be less than 354. This indicates the presence of an excess of dechlorinating agent in the wastewater. This may indicate that, or if the oxidizing agent neutralization system 360 is in high mode. Therefore, the measurement value from ORP sensor 356 should be less than 300mV.

[0062] In certain embodiments, portable total residual oxidant (TRO) analysis is performed during deballasting. To measure the total chlorine content using a device, the operator manually collects a sample of the wastewater. It is possible. The measured value should be less than 0.1 mg / L. If the value is greater than / L, it will switch from off mode to low mode or from low mode to high mode. By manually switching, or by using a higher concentration of the dechlorinating agent (see Table 1 for example), By manually selecting according to the lookup table, the operator Each user can select a high-level neutralizing agent.

[0063] The principle of dechlorinating agents such as sodium sulfite or sodium bisulfite to neutralize chlorine The weight ratios are 1.85 and 1.65, respectively. Typically, an excess of dechlorinating agent is used. This ensures that residual chlorine is reduced to an extremely low concentration. For example, upstream of a ballast water pump (not shown). The sodium sulfite derived from the oxidizing agent neutralization system 360, which is injected on the side, is for effective mixing. Therefore, a sodium sulfite dose of 4.7-5% by weight is required, and less than 0.1 mg / L. It efficiently reduces chlorine concentration.

[0064] In certain embodiments, the maximum required dechlorinating agent concentration depends on the type of container and the replacement pattern. They can be classified according to the system. Not all vessels will fit precisely into these classifications. It should be understood that container ships and coaster ships typically have short voyage times and displaced wastewater, etc. The strike operations are expected to take place in the open sea. In such cases, a high concentration of 2 mg / L is required. High TRO levels are expected, therefore a maximum sulfite concentration of 10-12 mg / L is required. For tankers and other common relatively long-distance vessels, the TRO measurement of discharged water is used. Since it is almost certainly not expected to exceed 1 mg / L, the maximum dose of the dechlorinating agent is 5 It should not exceed mg / L. The groups in Table 1 are the operating modes of the oxidizing agent neutralization system 360. The amount of dechlorinating agent used in large ships, relating to the ballast water retention time and ballast water supply source. This shows an estimate of the level of chlorine removal agent dosage. Table 1: Reference table for operator manual input in dechlorination mode. [Table 1]

[0065] An example of a neutralizing agent is a 15% w / w sodium sulfite solution. Recrystallization occurs if the concentration exceeds this level. Because it has the potential to transform, it is advantageous in terms of handling. (Regarding sodium bisulfite) It is available in liquid form as a 30-40% w / w solution.

[0066] Control system C is a computer with one or more computers, as illustrated in Figure 5. This can be done using a control system. Control system C is, for example, an input system. Tel Pentium® type processor or any other type of processor It may also be a general-purpose computer, such as one based on a combination of these. Alternatively, computer systems can be, for example, application-specific collections for analytical systems. Specialized hardware with special programming, such as integrated circuit complexes (ASICs) or controllers. It may include software.

[0067] Control system C includes, for example, disk drive memory, flash memory device One or more of the following: a chair, a RAM memory device, or another device for storing data. Includes one or more processors 705 that are normally connected to one or more memory devices 710 that may be present. That's fine. Control system C typically consists of, for example, one or more disk drives. Among flash memory, RAM memory elements, or other data storage elements One or more devices connected to one or more memory elements 710, which may have a difference of 1 or more. It may include a processor 305. Memory 710 is typically used by the processing system and / or Used to store programs and data during operation of control system C. Example For example, memory 710 is used to store historical data about parameters over a certain period of time. Software including programming code that implements embodiments of the present disclosure can be used. , stored on a computer-readable and / or writable non-volatile recording medium, further, Typically, this involves copying it into memory so that it can be executed later by the processor. Yes, it is possible. This kind of programming code can be written in multiple programming languages, for example, Java. a(registered trademark), Visual Basic, C, C#, or C++, Fortra One of the following: N, Pascal, Eiffel, Basic, COBAL, or all of them It can be written using any of the various combinations of the above.

[0068] The components of a control system are (for example, between components incorporated within the same device) (in which) one or more buses and / or (for example, components located on separate, independent devices) They can be connected by an interconnection mechanism 730 which may include a network between them. Interconnection mechanisms typically involve the exchange of information (e.g., data, life) between components of a system. This allows for the exchange of (orders).

[0069] The control system supplies one or more input signals i1, i2, i3, ..., in. Input devices 730, for example, sensors in a monitoring system, keyboard, mouse, trackball It may be equipped with one of the following: a microphone, or a touchscreen, and also output One or more output devices 740 that can supply force signals s1, s2, s3, ..., si, for example It may also include a printing device, a display screen, or a speaker. A computer system is a network that can be formed by one or more components of the system. (In addition to or instead of) connecting computer systems to a communication network. It may have one or more interfaces (not shown) that enable it to do so.

[0070] According to one or more embodiments of this disclosure, the one or more input devices measure parameters A sensor may be provided for this purpose. Alternatively, a sensor, throttle valve or flow control valve and / or the pump or all of these components are operable by a computer system. It can connect to a combined communication network. For example, sensors 352, 354, And 356 can be configured as input devices directly connected to a computer system. The throttle valve and / or pump are output devices connected to a computer system. It is possible to configure it in such a way that any one or more of the above can be connected to another computer system or configuration It can be combined with other components and communicate via a communication network. In this configuration, it is possible to place one or more sensors at a considerable distance from other sensors. This becomes possible, or any subsystem and / or controller can be separated from any sensor. It becomes possible to place S, and even then, data supply between them can still be performed. It becomes possible to do so.

[0071] The control system is a computer of one type that can implement various aspects of this disclosure. Although examples are given as a system, this disclosure does not apply to the software or code shown exemplarily. It is not limited to implementation on computer systems. In fact, for example, general-purpose computers... In computer systems, controllers, or their components or subsections, It cannot be implemented, and instead a dedicated system or a dedicated programmable logic controller (P It can also be implemented as an LC (Low Control) or in a distributed control system. Furthermore, of course As is clear, one or more features or aspects of this disclosure are software, hardware, or This can be done with firmware or any combination thereof. For example, One or more segments of the algorithm that can be executed by the controller are, then, one This can be done using individual computers that can communicate via the above network.

[0072] The functions and advantages of these and other embodiments of the present disclosure are further illustrated by the examples below. These examples can be understood in depth, and these examples are one or more systems and technologies of the present disclosure. While this illustrates some of the benefits and / or advantages, it does not illustrate the entire scope of this disclosure.

[0073] Figures 6 and 7 show the control algorithms for the chlorination and dechlorination processes, respectively. This illustrates the rhythm, for example, the control in one or more aspects of this disclosure. This can be done within System C. As shown in Figure 6, either upstream or downstream of the filter. The biocide produced is added to the ballast water in, or both. ORP The values ​​are measured to determine the biocide production rate, the amount of biocide added, or both. Adjust and use to achieve the desired target value. ORP is measured continuously, intermittently, or intermittently. Then maintain or adjust the introduction of biocides. As shown in Figure 7, once deballast begins, Using the mode, you can manually or automatically switch between modes, for example, low mode or high mode. In HIGH mode, the neutralizing agent is introduced. OR of the discharged ballast water Measure the P-value and compare it to the target value. If the measured ORP value is within the target range, for example, approximately 300m If the value is less than V, the mode is re-determined as either off mode or low mode. If the measured ORP value is greater than the target, the high mode is maintained.

[0074] This concludes the description of some illustrative embodiments of the present disclosure, which will be obvious to those skilled in the art. As is clear, the above is merely an example, not limiting, and simply illustrative. This is merely a presentation for the purpose of [the relevant field]. Various modifications and other embodiments exist for [the relevant field]. This falls within the discretion of the business operator and is considered to be included within the scope of this disclosure. In particular, Many of the examples presented in the document involve specific combinations of method actions or system elements. However, it is understood that the same objective can be achieved by combining those actions and elements in other ways. It should be understood.

[0075] As will be obvious to those skilled in the art, the parameters and configurations described herein are exemplary. The actual parameters and / or configurations will vary depending on the system and technology used in this disclosure. It may depend on the specific application. Furthermore, a person skilled in the art would only use commonplace experimental methods. Even without this, it should be possible to recognize or identify equivalents of specific embodiments of this disclosure. Therefore, the embodiments described herein are presented merely as illustrations, Within the scope of the attached claims and equivalents, this disclosure specifically describes the following: It should be understood that this can be done in a different way.

[0076] Furthermore, as will be apparent, of course, the present disclosure also encompasses each feature, system, subsystem or technique described herein, and any combination of two or more features, systems, subsystems or techniques described herein, and / or methods, provided that such features, systems, subsystems and techniques are not mutually inconsistent, and are considered to be within the scope of the present disclosure as embodied in the claims. Furthermore, acts, elements and features discussed only in the context of one embodiment are not intended to be excluded from a similar role in other embodiments. As used herein, the term "plural" refers to two or more parts or components. The terms "comprising," "including," "having," "containing," "involving," and "embracing" are open-ended terms, i.e., they mean "including, but not limited to," in any context such as the specification or claims. Thus, the use of such terms means including the recited parts and their equivalents as well as additional parts. Only the transitional phrases "consisting of" and "consisting essentially of" are limiting or semi-limiting transitional phrases with respect to the claims. The use of ordinal terms such as "first," "second," "third," etc. in the claims to modify a component of one claim does not by itself imply a priority, ranking or order of one claim element with respect to another claim element, or the temporal order in which steps of a method are performed, but merely serves to distinguish one claim element having a given name from another. [[ID=1S]]

[0077] ​​​​​​​​​​​​​​​Distinguish one from another element having the same name (however, using ordinal terminology), claim It is simply used as a label to help distinguish between the original and unrefined versions.

Claims

1. A ballast water management (BWM) system configured to introduce ballast water into a ballast tank via a ballast water line, and to discharge the ballast water from the ballast tank after a holding period in which the ballast water is held within the ballast tank, A biocide supply source configured to introduce the biocide into the ballast water, During the introduction period for introducing a neutralizing agent selected to neutralize at least a portion of the biocide's biocidal activity, the neutralization system is configured to introduce the neutralizing agent into the discharged ballast water, which is ballast water discharged from the ballast tank, at the neutralizing agent introduction site, in at least one of a low mode, which is a first dose of the neutralizing agent, and a high mode, which is a second dose of the neutralizing agent greater than the first dose. A first oxidation-reduction potential (ORP) sensor is fluidly connected between the ballast tank and the neutralization system and configured to measure a first oxidation-reduction potential (ORP) value of the discharged ballast water. The neutralization system is controlled to introduce the neutralizing agent into the discharged ballast water at a dosage level corresponding to either the low mode or the high mode, which are the operating modes of the neutralization system. In this case, the high mode is activated if the first oxidation-reduction potential (ORP) value of the discharged ballast water exceeds the target ORP value, and the low mode is activated if the first oxidation-reduction potential (ORP) value of the discharged ballast water is less than or equal to the target ORP value, with the target ORP value being 200 mV or 300 mV. A ballast water management system comprising: a controller configured to control the system to the high mode when the ballast water begins to be discharged from the ballast tank, and to control the neutralization system so that the measurement signal from the first ORP sensor maintains the high mode for 3 to 5 minutes and reaches a steady state, and after the steady state is reached, one of the operating modes is activated based on the measurement signal from the first ORP sensor.

2. The system according to claim 1, further comprising a ballast water pump arranged to pump the ballast water to the ballast tank via the ballast water line.

3. The system according to claim 1, further comprising a filter fluidly connected to the ballast water line and arranged to remove at least a portion of the solids from the ballast water and introduce it into the ballast tank, wherein the source of the biocide is configured to introduce at least a portion of the biocide upstream of the filter.

4. The system according to claim 1, wherein the source of the biocide has an electrolysis device configured to electrolyze the biocide from a source of chloride-containing water, and the source of the chloride-containing water is any of a ship cooling water system, a sea chest, and a chloride-containing water storage tank.

5. The system according to claim 1, wherein the source of the biocide has an inlet that is fluidly connected to a source of chloride-containing water which is fluidly isolated from the ballast water line.

6. The system according to claim 1, wherein a first ORP value is measured after any operation of the operating mode, and if the first ORP value is less than a target ORP value, the neutralization system decides to discontinue the introduction of the neutralizing agent.

7. A second ORP sensor configured to measure the second ORP value of the discharged ballast water downstream of the neutralizing agent introduction site, A controller is configured to confirm the neutralization of the biocide in the discharged ballast water when the difference between the first ORP value and the second ORP value is within the allowable ORP value. The system according to claim 1, further comprising:

8. The system according to claim 1, wherein after operation in the high mode, a first ORP value is measured, and if the first ORP value is less than a target ORP value and the holding time is less than two days, the neutralization system decides to discontinue the introduction of the neutralizing agent in the high mode and to introduce the neutralizing agent in the low mode.

9. A second ORP sensor configured to measure the second ORP value of the discharged ballast water downstream of the neutralizing agent introduction site, A controller is configured to confirm the neutralization of the biocide in the discharged ballast water when the second ORP value is smaller than the first ORP value. The system according to claim 8, further comprising:

10. The system according to claim 1, wherein a first ORP value is measured after operation of any of the operating modes, and if the first ORP value is greater than a target ORP value, the neutralization system decides to introduce the neutralizing agent in high mode.

11. A second ORP sensor configured to measure the second ORP value of the discharged ballast water downstream from the neutralizing agent introduction site, A controller is configured to confirm the neutralization of the biocide in the discharged ballast water if the second ORP value is less than the compliant ORP value. The system according to claim 10, further comprising:

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