A mobile ballast water zero hold time treatment system

Abstract

The utility model discloses a mobile ballast water zero residence treatment system, including movable container, be provided with ballast water treatment system in container, and ballast water treatment system handles the mode of ballast water and includes filter treatment and ultraviolet treatment, still include water intake system, and the import of water intake system is used for with the communication of ship ballast water discharge, thereby exports the ballast water in the ship to the ballast water treatment system in and handles. Since the processing device is integrated in the movable container, it is strong in versatility, can provide the instant solution for the ship of not installing the treatment system and the fault ship, simultaneously, the utility model is through the double technology of filtration and ultraviolet treatment and realizes ballast water instant treatment and up to standard discharge, realizes zero residence, need not to construct the residence pool, saves the land and capital construction cost, significantly reduces the wharf construction and operation cost, in addition, ballast water treatment is completed in real time through filtration and ultraviolet treatment, effectively improves the processing efficiency, and green environmental protection simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of ballast water treatment technology, and in particular to a mobile ballast water zero-retention treatment system. Background Technology

[0002] Ballast water is seawater or freshwater loaded onto ships during navigation or berthing to adjust stability, balance, and draft. Ballast water loaded by ships in different sea areas may contain native organisms (such as bacteria, plankton, fish eggs, etc.). Direct discharge of untreated ballast water can cause a series of harms, such as damage to marine ecosystems, frequent red tides, invasive species impacting the marine life of dock areas, and economic losses to marine aquaculture. To avoid the impact of invasive species on the marine life of dock ballast waters, untreated ballast water must not be discharged indiscriminately at docks.

[0003] When ships are sailing, the discharge of ballast water must comply with the standards of relevant conventions. Therefore, all ships are equipped with ballast water treatment systems. These systems allow ballast water to be discharged as needed, regardless of time or location. However, some ships do not have ballast water treatment equipment. For ships without such equipment, or for ships with such equipment experiencing temporary system malfunctions, ballast water can be treated at the dockside ballast water treatment facilities.

[0004] In existing technologies, ballast water treatment devices at wharves require the establishment of retention pools with limited residence times. Only after meeting the residence time requirements can compliant discharge be carried out. This creates challenges for wharf construction, such as increased investment in site area (increasing the wharf's land area by 30%-50%) and increased facility construction costs (wharf construction costs exceeding 5 million yuan). Furthermore, ballast water treatment devices are fixed to the wharf and can only be used at that wharf, limiting their application. At the same time, existing technologies using chemical methods to treat ballast water are inefficient and may cause secondary pollution. Summary of the Invention

[0005] This application provides a mobile ballast water zero-stay treatment system, which solves the technical problems of existing dock ballast water treatment devices, such as large footprint, high cost, low efficiency, and limited use. To address the aforementioned technical problems, this application provides a mobile ballast water zero-retention treatment system. The treatment device includes a movable container, and a ballast water treatment system is installed inside the container. The ballast water treatment system treats the ballast water by means of filtration and ultraviolet treatment. It also includes a water intake system, the inlet of which is connected to the ship's ballast water discharge outlet, thereby exporting the ballast water inside the ship to the ballast water treatment system for treatment.

[0006] Furthermore, the container is also equipped with a sewage thickening system and a sludge treatment system, wherein: The ballast water treatment system generates sludge after treating the ballast water. The sludge concentration system is connected to the sludge outlet of the ballast water treatment system to concentrate the sludge generated after treating the ballast water into a concentrated liquid, and then export the concentrated liquid to the sludge treatment system. The sludge treatment system is connected to the wastewater thickening system, and the sludge treatment system receives the concentrated liquid and processes the concentrated liquid to form sludge cake.

[0007] Furthermore, an exhaust system is also connected between the water inlet system and the ballast water treatment system; The inlet of the exhaust system is connected to the water inlet system, and the outlet of the exhaust system extends to the top of the container to expel air from the ballast water of the ship before it enters the ballast water treatment system.

[0008] Furthermore, the ballast water treatment system is connected to a sludge discharge system and an outlet pipeline system, wherein: The residual sludge formed after the ballast water treatment system processes the ballast water is discharged from the sludge discharge system, and the treated ballast water is discharged from the ballast water treatment system through the outlet pipeline system.

[0009] Furthermore, the water outlet pipeline system is connected to a water outlet system installed on the outer wall of the container, and the ballast water discharged by the water outlet pipeline system can be discharged from the container through the water outlet system.

[0010] Furthermore, the ballast water treatment system includes a filtration unit and an ultraviolet treatment unit, wherein the filtration unit is used to filter the ballast water, and the ultraviolet treatment unit is used to treat the ballast water with ultraviolet light. The ultraviolet treatment unit includes a UV unit, which includes a housing. A water passage cavity is formed on the housing for the ballast water to be treated to pass through longitudinally. The ballast water inlet of the water passage cavity is connected to the outlet of the filter unit, and the ballast water outlet of the water passage cavity is connected to the water outlet pipeline system. Several ultraviolet lamps are horizontally inserted into the water passage cavity. The ultraviolet lamps are located on the path of the ballast water passing through the water passage cavity to perform ultraviolet treatment on the ballast water passing through the water passage cavity.

[0011] Furthermore, the outer casing forms electrical cavities at both ends of the ultraviolet lamp tube, and lamp holders are fixedly installed in the electrical cavities. The two ends of the ultraviolet lamp tube are respectively connected to the lamp holders on the same side, thereby fixing the ultraviolet lamp tube and providing electrical connection.

[0012] Furthermore, the ultraviolet lamp is inserted inside a quartz tube, which isolates the ultraviolet lamp from the ballast water.

[0013] Furthermore, the UV unit also includes a temperature sensor and a control system, wherein: The temperature sensor is used to acquire the temperature inside the water passage chamber. The signal input terminal of the control system is connected to the temperature sensor and is used to receive the temperature signal acquired by the temperature sensor. The signal output terminal of the control system outputs a first control signal, which is used to control the opening and closing of the UV unit.

[0014] Furthermore, the ballast water inlet of the water passage cavity is located below the ballast water outlet of the water passage cavity.

[0015] As described above, the treatment device in this application embodiment is integrated into a movable container. After docking with the ship's ballast water system, it can automatically sterilize the ballast water from the ship's ballast tank. The wastewater generated during the treatment process is concentrated and then dewatered again through a sludge treatment system. The dried sludge cake is discharged from the equipment, and the treated water is discharged into the dock area on-site. Because the treatment device is integrated into a movable container, it is highly versatile and can provide an immediate solution for ships without treatment systems or ships with malfunctions. At the same time, this application achieves immediate treatment and compliant discharge of ballast water through a dual process of filtration and ultraviolet treatment, achieving zero retention, eliminating the need to build a retention tank, saving land and infrastructure costs, and significantly reducing the construction and operation costs of the dock. In addition, the ballast water treatment is completed in real time through filtration and ultraviolet treatment, which is highly efficient and effectively solves the problems in the background art.

[0016] In summary, this application has at least the following beneficial effects: 1. The treatment device described in this application is integrated into a movable container, which is highly versatile and can provide an immediate solution for ships that have not installed a treatment system or for ships that have broken down. The treatment efficiency reaches 99.9%, and the sludge volume is reduced to a moisture content of ≤70%. It is suitable for ships that have not installed a treatment system and for emergency failure scenarios, and is highly efficient and practical.

[0017] 2. This application utilizes a dual treatment process of mechanical filtration and ultraviolet light to achieve immediate treatment and compliant discharge of ballast water, ensuring compliance upon single-pass passage and eliminating the need for a holding basin at the terminal, thus saving land and infrastructure costs and significantly reducing terminal construction and operating costs. Simultaneously, the treatment cycle is shortened from the traditional 2 hours to real-time completion, reducing ship berthing time by 30% and effectively improving efficiency.

[0018] 3. The treatment device described in this application has undergone a no-stay treatment test at Shanghai Port. The actual ship test at Shanghai Port has verified that the microbial inactivation rate of the treatment device described in this application is ≥99.9%, and the daily sludge production is ≤0.2 tons, which meets the IMO and Chinese emission standards. This provides support for the management of ballast water discharge from international ocean-going vessels in Chinese ports and the compliance with relevant international ballast water requirements.

[0019] 4. The processing device described in this application uses filtration and ultraviolet treatment, and the entire process is free of chemical additives, avoiding secondary pollution and achieving green and environmentally friendly results. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a front view of a mobile ballast water zero-retention treatment system according to an embodiment of this utility model; Figure 2 This is a top view of a mobile ballast water zero-retention treatment system according to an embodiment of this utility model; Figure 3 This is a left view of a mobile ballast water zero-retention treatment system according to an embodiment of this utility model; Figure 4 This is a cross-sectional view of a mobile ballast water zero-retention treatment system according to an embodiment of this utility model; Figure 5 This is a three-dimensional mobile ballast water zero-retention treatment system according to one embodiment of the present invention. Figure 1 ; Figure 6 This is a three-dimensional mobile ballast water zero-retention treatment system according to one embodiment of the present invention. Figure 2 ; Figure 7 This is a plan view of a mobile ballast water zero-retention treatment system according to one embodiment of this utility model; Figure 8This is a schematic diagram showing the connection between a mobile ballast water zero-stay treatment system and a ship with ballast water to be treated in one embodiment of this utility model. Figure 9 This is a schematic diagram of the UV unit structure in a mobile ballast water zero-stay treatment system according to one embodiment of the present invention; Figure 10 This is a cross-sectional view of a UV unit in a mobile ballast water zero-stay treatment system according to an embodiment of this utility model; Figure 11 This is a schematic diagram illustrating the working principle of a UV unit in a mobile ballast water zero-stay treatment system according to one embodiment of this utility model. Detailed Implementation

[0022] This application provides a mobile ballast water zero-stay treatment system, which solves the technical problems of existing dock ballast water treatment devices, such as large footprint, high cost, low efficiency, and limited use.

[0023] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figures 1-2 As shown in Figures 4-7, one or more embodiments of this application provide a mobile ballast water zero-retention treatment system. The treatment device includes a container 1, which is the outer shell of the treatment device and can be in the shape of a cuboid, cube, or other shapes that facilitate hoisting. It can be made of materials that balance strength, corrosion resistance, and economy. For example, in one embodiment of this application, the container 1 uses a weathering steel frame and is a 40-foot or 20-foot standard container.

[0025] like Figure 5 , 7 As shown, the container 1 is divided into an electrical control room and an equipment room located at the left and right ends, respectively. The sides of the container 1 have access passages 8 for the electrical control room and 7 for the equipment room. Furthermore, a container end access passage 10 is provided on the left end face of the container 1. This container end access passage 10 is the main end passage of the container 1, allowing large equipment to enter the equipment room. It can be opened or closed as needed.

[0026] like Figure 1 , 4As shown in Figures 6 and 7, the equipment room is equipped with a ventilation and heat exchange system 2. The ventilation and heat exchange system 2 includes an exhaust fan and a ventilation fan respectively installed on opposite sides of the container 1, with one side exhausting air and the other side venting air to promptly remove heat from the equipment room and ensure the room temperature and air circulation. Simultaneously, air conditioners 20 and 21 can also be installed in the electrical control room to regulate the room temperature.

[0027] The equipment room is equipped with a ballast water treatment system 14, which is the core equipment of the treatment device. This system treats the ballast water in the ship's ballast tanks to meet discharge standards through filtration and ultraviolet treatment. The ballast water treatment system 14 achieves immediate treatment and compliant discharge of ballast water through a dual treatment process of mechanical filtration and ultraviolet light, ensuring compliance with standards upon single-pass passage and achieving zero dwell time. This eliminates the need for a holding tank at the wharf, saving land and infrastructure costs and significantly reducing wharf construction and operating costs. The equipment room is also equipped with a water inlet system 3, the inlet of which extends to the outer wall of the container 1 for connection to the ship's ballast water discharge port. Figure 8 As shown, the inlet of the water inlet system 3 can be connected to the ballast water discharge port of the ship requiring ballast water treatment via the ballast water receiving pipe c, thereby receiving ballast water from the ship's ballast tank. The outlet of the water inlet system 3 is connected to the ballast water treatment system 14 to transport the ballast water to be treated to the ballast water treatment system 14 for treatment.

[0028] Specifically, the water inlet system 3 is also equipped with a water inlet pipeline system 18. The water inlet pipeline system 18 is a pretreatment and control channel for the ship's ballast water before it enters the ballast water treatment system 14. It is equipped with corresponding valves such as switch valves, as well as instruments such as flow meters and pressure gauges. Ballast water can only enter the treatment device for corresponding process treatment after all conditions (such as flow rate and pressure) meet the preset requirements.

[0029] like Figures 1-2 As shown in Figures 5 and 6, an exhaust system 4 is also connected between the water inlet system 3 and the ballast water treatment system 14. The inlet of the exhaust system 4 is connected to the water inlet system 3, and the outlet of the exhaust system 4 extends to the top of the container 1 to discharge air from the ship's ballast water before it enters the ballast water treatment system 14, thereby preventing air bubbles from damaging the ballast water treatment system 14 and other equipment and pipelines.

[0030] The ballast water treatment system is connected to a sludge discharge system 5 and an outlet pipeline system 6. The residual sludge formed after the ballast water is treated by the ballast water treatment system 14 is discharged from the sludge discharge system 5, and the treated ballast water is discharged from the ballast water treatment system 14 through the outlet pipeline system 6. Figure 8 As shown, the water outlet pipeline system 6 is connected to a water outlet system 22 installed on the outer wall of the container 1, and the ballast water discharged by the water outlet pipeline system 6 can be discharged from the container 1 through the water outlet system 22.

[0031] like Figure 1 , 3 As shown, the outlet of the water outlet system 22 extends to the bottom of the outer wall of the container 1 and is limited to the outer wall of the container 1 by the pipe support mechanism 23. The pipe support mechanism 23 supports the water outlet system 22 and adjusts the direction of the outlet pipe. Figure 8 As shown, the outlet of the water outlet system 22 can be connected to the ballast water discharge pipe d, which extends into the wharf water area to discharge the treated ballast water into the wharf water area.

[0032] The container 1 is also equipped with a sewage concentration system 15 and a sludge treatment system 17 that are connected to each other. The sewage concentration system 15 is connected to the sewage outlet of the ballast water treatment system 14. The sewage concentration system 15 is used to further concentrate the sewage formed after the ballast water treatment system 14 treats the ballast water into a concentrated liquid, and then export the concentrated liquid to the sludge treatment system 17.

[0033] The sludge treatment system 17 is connected to a dosing system 16, which is used to automatically mix and add chemicals to the sludge treatment system 17. The sludge treatment system 17 receives the concentrated liquid from the sewage thickening system 15 and further dehydrates the concentrated liquid under the action of the chemical liquid to form a sludge cake with low water content, which is then discharged from the container 1, thereby completing the sewage treatment process of the treatment device.

[0034] Specifically, the chemical solution added by the dosing system 16 is mainly used to improve sludge dewatering performance. Through chemical conditioning, it causes sludge particles to aggregate and form larger flocs, thereby separating water more efficiently. For example, the chemical solution may include polyacrylamide (PAM), which can bridge tiny particles in the concentrate into large flocs, improving dewatering efficiency. The chemical solution may also include polyaluminum chloride (PAC), which promotes aggregation by neutralizing the electric double layer of sludge particles in the compressed concentrate.

[0035] In summary, the treatment device described in this application embodiment is integrated into a movable container, making it mobile and highly flexible in use. After docking with the ship's ballast water system, it can automatically sterilize the ballast water from the ship's ballast tank. The wastewater generated during the treatment process is concentrated and then dewatered again through the sludge treatment system 17. The dried sludge cake is discharged from the equipment, and the treated water is discharged directly into the dock area. Because the treatment device is integrated into a movable container, it is highly versatile and can provide an immediate solution for ships without a treatment system or for ships that are in malfunction. At the same time, this application achieves immediate treatment and compliant discharge of ballast water through a dual process of filtration and ultraviolet treatment, achieving zero retention, eliminating the need to build a retention tank, saving land and infrastructure costs, and significantly reducing the construction and operation costs of the dock. In addition, the ballast water treatment is completed in real time with high efficiency, thus effectively solving the problems in the background art.

[0036] Therefore, by moving the treatment device described in this application embodiment to a dock, ships without ballast water treatment systems can also dock and treat seawater from different sea areas on-site for cargo loading, unloading, and other operations. The treatment device described in this application embodiment is particularly important for ships that are inconvenient to retrofit with ballast water treatment systems (e.g., older ships). Even for ships equipped with ballast water treatment systems, a temporary malfunction can affect the discharge of ballast water from the ballast tanks after docking, causing difficulties in unloading and hindering normal operations. The treatment device described in this application embodiment can solve all these problems. More importantly, the treatment device is integrated into a movable container, offering high flexibility and making it particularly suitable for emergency failure scenarios.

[0037] In one embodiment of this application, the ballast water treatment system 14 includes a filtration unit and an ultraviolet treatment unit, wherein: The filtration unit comprises a two-stage 316L stainless steel self-cleaning filter (fine filtration accuracy greater than 50μm). The first stage is a coarse filtration stage, employing a filter screen with a larger pore size (e.g., 100-500 micrometers) to intercept large particles of impurities, thus reducing the workload on the second stage. The second stage is a fine filtration stage, with an even higher filtration accuracy (pore size of 10-100 micrometers), ensuring the final cleanliness. The first and second stages are designed in series, with each stage operating independently or sharing a self-cleaning system. Automatic backwashing occurs in case of clogging, and the wastewater generated by the filtration unit is directed to the wastewater concentration system 15.

[0038] The ultraviolet (UV) treatment unit includes a UV unit, which is a physical disinfection technology based on ultraviolet radiation. By disrupting the DNA / RNA structure of microorganisms, it renders them unable to reproduce, achieving highly efficient sterilization, virus inactivation, and inhibition of algae growth. It is widely used in water treatment, air purification, and surface disinfection, offering advantages such as no chemical residue, broad-spectrum sterilization, and rapid response.

[0039] like Figures 9-11 As shown, the UV unit includes a housing 31, which is welded from corrosion-resistant 316L stainless steel or duplex stainless steel. A water passage cavity B is formed on the housing 31, through which the ballast water to be treated flows longitudinally. The ballast water inlet of the water passage cavity B is connected to the outlet of the filter unit, and the ballast water outlet of the water passage cavity B is connected to the water outlet pipeline system 6. A plurality of ultraviolet lamps 33 are transversely arranged inside the water passage cavity B. The length extension direction of the ultraviolet lamps 33 is perpendicular to the water passage path of the ballast water inside the water passage cavity B, and the ultraviolet lamps 33 are located on the passage path of the ballast water inside the water passage cavity B, so as to disinfect the ballast water passing through the water passage cavity B with ultraviolet light.

[0040] Specifically, the ultraviolet lamp 33 is a light source component for disinfection and sterilization. Its wavelength is within a specific range, and its power is determined by calculation based on the amount of water to be treated. The arrangement spacing and method of each lamp can be determined as needed to achieve the best treatment effect.

[0041] Furthermore, such as Figure 10 As shown, the outer casing 31 forms electrical cavities A at both ends of the ultraviolet lamp tube 33. Lamp holders 35 are fixedly installed in the electrical cavities A. The two ends of the ultraviolet lamp tube 33 are respectively connected to the lamp holders 35 on the same side, thereby fixing the ultraviolet lamp tube 33 and providing a stable electrical connection to provide power.

[0042] Furthermore, the ultraviolet lamp 33 is housed within a quartz tube 32, which is a highly transparent quartz glass tube. The quartz tube 32 is completely sealed to protect the internal electrical components and prevent the intrusion of water vapor. In this way, the quartz tube 32 isolates the ultraviolet lamp 33 from the ballast water, transmits ultraviolet light, and protects the ultraviolet lamp 33 from contamination.

[0043] In addition, a cleaning mechanism 34 is provided outside the quartz tube 32. The cleaning mechanism 34 periodically moves left and right along the axial direction of the quartz tube 32 to clean the dirt on the quartz tube 32 and improve the luminous efficiency in order to achieve the best treatment effect.

[0044] The cleaning mechanism 34 includes a stainless steel brush that can reciprocate along the outer wall of the quartz tube 32 to remove deposits; it also includes a chemical cleaning unit for chemically cleaning the outer wall of the quartz tube 32, which can inject a cleaning agent (such as citric acid) into the outer wall of the quartz tube 32 to dissolve carbonate / organic film; and it also includes an ultrasonic cleaning unit that causes stubborn dirt on the outer wall of the quartz tube 32 to vibrate at high frequency to peel off the stubborn dirt on the outer wall of the quartz tube 32.

[0045] The UV unit also includes a temperature sensor 36 and a control system 11. The temperature sensor 36 is used to obtain the temperature of the ballast water in the water passage chamber B. The signal input terminal of the control system 11 is connected to the temperature sensor 36 and is used to receive the temperature signal obtained by the temperature sensor 36. The signal output terminal of the control system 11 outputs a first control signal. The first control signal is used to control the power switch and the alarm system 9, thereby turning the UV unit on or off and sending instructions to the alarm system 9.

[0046] It should be noted that the power switch is the switch for the power control system 13 of the processing device, which provides driving power and protection functions for the operation of the ultraviolet lamp 33. The power control system 13 can be installed in the equipment room.

[0047] The temperature sensor 36 monitors the real-time temperature inside the water passage chamber B and transmits the temperature signal to the control system 11 in the point space for corresponding control. The control system 11 has a pre-stored temperature threshold. When the real-time temperature exceeds the temperature threshold, the control system 11 will power off and stop to protect the system safety, and at the same time, the alarm system 9 will be activated. The alarm system 9 can be installed on the outer wall of the container 1.

[0048] In addition, the UV unit also includes a temperature switch 37, which provides dual safety protection. If the temperature sensor 36 malfunctions and the machine does not stop when the water temperature is too high, the temperature switch 37 will directly cut off the power and stop the machine (i.e., stop the operation of the processing device). In one embodiment of this application, an ultraviolet intensity sensor 38 is also provided in the water passage chamber B. The ultraviolet intensity sensor 38 is used to obtain the real-time ultraviolet light dose density in the water passage chamber B. The signal input terminal of the control system 11 is connected to the ultraviolet intensity sensor 38 and is used to receive the ultraviolet light dose density signal obtained by the ultraviolet intensity sensor 38. The signal output terminal of the control system 11 outputs a second control signal, which is used to control the switching of the cleaning mechanism 34.

[0049] Specifically, the control system 11 has a pre-stored ultraviolet light dose density threshold. When the real-time ultraviolet light dose density is lower than the ultraviolet light dose density threshold, the control system 11 will activate the cleaning mechanism 34 to clean the quartz tube 32. Furthermore, when the dose density falls below a specific value, the alarm system 9 in the control room will activate to prompt the operator to take appropriate action.

[0050] In one embodiment of this application, as Figure 11 As shown, the ballast water inlet of the water passage chamber B is located at the bottom, and the ballast water outlet of the water passage chamber B is located at the top. In this way, during operation, the ballast water to be treated enters from the bottom of the UV unit and exits from the top, which can ensure that the water passage chamber B is always at full water level. This can protect the UV lamp tube 33 from overheating and also ensure that the treated ballast water achieves the best effect. In one embodiment of this application, the wastewater concentration system 15 includes a disc filter with a filtration accuracy greater than 50 μm.

[0051] The disc filter mainly achieves solid-liquid separation through centrifugal force or pressure difference. It includes an inlet for inputting wastewater into the filter chamber of the disc filter, a concentrated liquid outlet for discharging concentrated liquid into the sludge treatment system 17, and a clear liquid outlet for discharging filtered clean liquid. The clear liquid outlet is connected to the inlet of the filter unit for secondary treatment.

[0052] The feed inlet is connected to the sludge outlet of the ballast water treatment system, and the concentrate outlet is connected to the inlet of the sludge treatment system 17. In one embodiment of this application, the sludge treatment system 17 includes a screw press sludge dewatering machine to reduce the volume of the concentrate. The screw press sludge dewatering machine achieves dewatering of the concentrate through mechanical extrusion of the screw shaft and staged compression between the moving and stationary rings. The resulting sludge cake is discharged from the sludge discharge port. The sludge cake has a moisture content of ≤70% and can be directly transported for disposal. The filtrate is returned to the filtration unit for secondary treatment, and the remaining sludge cake with low moisture content is discharged from container 1, thereby completing the sewage treatment process of the device. The treatment device also includes a power distribution system 12 that supplies power to the electrical equipment of the treatment device (e.g., ballast water treatment system 14, sewage concentration system 15, sludge treatment system 17, etc.), and the power distribution system 12 is located in the electrical control room. The treatment device also includes a tap water system 19, which provides cleaning water for the treatment device. For example, the tap water system 19 shown provides self-cleaning water to the filtration unit, the wastewater concentration system 15, etc. An exemplary working process of the mobile zero-stay ballast water treatment device described in this application embodiment is as follows: 1. The crane lifts the processing device to the target location on the dock; 2. The ballast water receiving pipe c is connected to the ballast water discharge port of the ship that needs ballast water treatment, and the outlet pipe is connected to the ballast water discharge pipe d, which discharges the ballast water to the dock water area on site. 3. The ship's ballast water enters the filtration unit through water inlet system 3 (water pressure between 0.3-0.5 MPa); 4. After coarse and fine filtration by the aforementioned filtration unit, the ballast water flows into the UV unit for instantaneous disinfection (retention time 0 seconds). 5. After treatment to meet the standards (biological activity ≤10 / m³), the ballast water is discharged to the wharf water area through the outlet pipeline and ballast water discharge pipe d. 6. The wastewater is concentrated and dehydrated to form mud cakes (moisture content ≤70%), which are then transported off-site for disposal. In summary, this application has at least the following beneficial effects: 1. The treatment device described in this application is integrated into a movable container 1, which is highly versatile and can provide an immediate solution for ships that have not installed a treatment system or for ships that have broken down. The treatment efficiency reaches 99.9%, and the sludge volume is reduced to a moisture content of ≤70%. It is suitable for ships that have not installed a treatment system and for emergency failure scenarios, and is highly efficient and practical.

[0053] 2. This application utilizes a dual treatment process of mechanical filtration and ultraviolet light to achieve immediate treatment and compliant discharge of ballast water, ensuring compliance upon single-pass passage and eliminating the need for a holding basin at the terminal, thus saving land and infrastructure costs and significantly reducing terminal construction and operating costs. Simultaneously, the treatment cycle is shortened from the traditional 2 hours to real-time completion, reducing ship berthing time by 30% and effectively improving efficiency.

[0054] 3. The treatment device described in this application has undergone a no-stay treatment test at Shanghai Port. The actual ship test at Shanghai Port has verified that the microbial inactivation rate of the treatment device described in this application is ≥99.9%, and the daily sludge production is ≤0.2 tons, which meets the IMO and Chinese emission standards. This provides support for the management of ballast water discharge from international ocean-going vessels in Chinese ports and the compliance with relevant international ballast water requirements.

[0055] 4. The processing device described in this application has no chemical additives throughout the entire process, avoiding secondary pollution and achieving green and environmentally friendly operation. It should be understood that although quantifiers such as "first," "second," etc., may be used herein to describe various units, these units should not be limited by these terms. These terms are used merely to distinguish one unit from another. For example, without departing from the scope of the exemplary embodiments, a first unit may be referred to as a second unit, and similarly, a second unit may be referred to as a first unit.

[0056] The directional terms such as "outer," "middle," and "inner" mentioned or potentially used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0057] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from the method of this application, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this application, based on the disclosed technical content, are equivalent embodiments of this application. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this application still fall within the scope of the technical solution of this application.

Claims

1. A mobile ballast water zero-retention treatment system, characterized in that, The treatment device includes a movable container, which is equipped with a ballast water treatment system. The ballast water treatment system treats the ballast water by means of filtration and ultraviolet treatment. It also includes a water intake system, the inlet of which is connected to the ship's ballast water discharge outlet, thereby exporting the ballast water inside the ship to the ballast water treatment system for treatment.

2. The mobile ballast water zero-retention treatment system as described in claim 1, characterized in that, The container is also equipped with a wastewater thickening system and a sludge treatment system, wherein: The ballast water treatment system generates sludge after treating the ballast water. The sludge concentration system is connected to the sludge outlet of the ballast water treatment system to concentrate the sludge generated after treating the ballast water into a concentrated liquid, and then export the concentrated liquid to the sludge treatment system. The sludge treatment system is connected to the wastewater thickening system, and the sludge treatment system receives the concentrated liquid and processes the concentrated liquid to form sludge cake.

3. The mobile ballast water zero-retention treatment system as described in claim 1, characterized in that, An exhaust system is also connected between the water inlet system and the ballast water treatment system; The inlet of the exhaust system is connected to the water inlet system, and the outlet of the exhaust system extends to the top of the container to expel air from the ballast water of the ship before it enters the ballast water treatment system.

4. A mobile ballast water zero-retention treatment system as described in claim 1, characterized in that, The ballast water treatment system is connected to a sludge discharge system and an outlet pipeline system, wherein: The residual sludge formed after the ballast water treatment system processes the ballast water is discharged from the sludge discharge system, and the treated ballast water is discharged from the ballast water treatment system through the outlet pipeline system.

5. A mobile ballast water zero-retention treatment system as described in claim 4, characterized in that, The water outlet pipeline system is connected to a water outlet system installed on the outer wall of the container, and the ballast water discharged by the water outlet pipeline system can be discharged from the container through the water outlet system.

6. A mobile ballast water zero-retention treatment system as described in claim 4, characterized in that, The ballast water treatment system includes a filtration unit and an ultraviolet (UV) treatment unit, wherein the filtration unit is used to filter the ballast water and the UV treatment unit is used to treat the ballast water with UV light. The ultraviolet treatment unit includes a UV unit, which includes a housing. A water passage cavity is formed on the housing for the ballast water to be treated to pass through longitudinally. The ballast water inlet of the water passage cavity is connected to the outlet of the filter unit, and the ballast water outlet of the water passage cavity is connected to the water outlet pipeline system. Several ultraviolet lamps are horizontally inserted into the water passage cavity. The ultraviolet lamps are located on the path of the ballast water passing through the water passage cavity to perform ultraviolet treatment on the ballast water passing through the water passage cavity.

7. A mobile ballast water zero-retention treatment system as described in claim 6, characterized in that, The outer casing forms electrical cavities at both ends of the ultraviolet lamp tube, and lamp holders are fixedly installed in the electrical cavities. The two ends of the ultraviolet lamp tube are respectively connected to the lamp holders on the same side, thereby fixing the ultraviolet lamp tube and providing electrical connection.

8. A mobile ballast water zero-retention treatment system as described in claim 6, characterized in that, The ultraviolet lamp is inserted inside a quartz tube, which isolates the ultraviolet lamp from the ballast water.

9. A mobile ballast water zero-retention treatment system as described in claim 6, characterized in that, The UV unit also includes a temperature sensor and a control system, wherein: The temperature sensor is used to acquire the temperature inside the water passage chamber. The signal input terminal of the control system is connected to the temperature sensor and is used to receive the temperature signal acquired by the temperature sensor. The signal output terminal of the control system outputs a first control signal, which is used to control the opening and closing of the UV unit.

10. A mobile ballast water zero-retention treatment system as described in claim 6, characterized in that, The ballast water inlet of the water passage is located below the ballast water outlet of the water passage.

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