Ship ballast water and tank washing water treatment device

Abstract

The utility model relates to sewage treatment technical field, and disclose a kind of ship ballast water and washing ballast water treatment device, including base, the upper surface of base is respectively fixedly installed with ozone generator, micro-nano bubble generator, catalytic oxidation reactor and clean water pool.The ship ballast water and washing ballast water treatment device, wastewater is mixed gas of ozone generator generation ozone by sewage pipe and enters micro-nano bubble generator, micro-nano bubble generator generation micro-nano bubble containing ozone and oxygen and wastewater enter catalytic oxidation reactor together and carry out oxidation reaction, in catalytic oxidation reactor, micro-nano bubble carries out oxidation treatment to wastewater and kills bacteria, and the wastewater after oxidation treatment is filtered by ceramic membrane assembly, macromolecular organic matter and insect egg etc. in wastewater are intercepted in reactor, and the water after treatment enters clean water pool, realize the effect that ship ballast water is treated sufficiently.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and more specifically to a device for treating ship ballast wastewater and tank washing water. Background Technology

[0002] Ballast water is crucial for the safe navigation of ships. When ocean-going vessels inject and discharge ballast water during voyages, it can easily lead to the cross-oceanic spread of harmful aquatic organisms and pathogens. Uncontrolled discharge of ballast water poses a serious threat to marine ecosystems and public health. To address biological invasions caused by ship ballast water, the International Maritime Organization (IMO) has formulated the Convention on the Control and Management of Ship Ballast Water and Sediments. According to the convention, ballast water treatment refers to the killing and removal of microorganisms in ballast water. Among various ballast water treatment methods, ultraviolet (UV) filtration is currently the most widely used. However, existing UV sterilization devices for ballast water are not sufficiently effective, and the discharged ballast water still contains impurities and incompletely disinfected bacteria.

[0003] Ceramic membranes possess outstanding characteristics such as high mechanical strength, large flux, high thermal and chemical stability, resistance to acid and alkali corrosion, and stable operation under extreme pollution conditions, making them widely used in water treatment. However, their application is limited by drawbacks such as membrane fouling and limited functionality. Ozone, on the other hand, is a strong oxidant with a high standard redox potential and strong bactericidal and disinfecting effects. Its decomposition product is oxygen, which does not cause secondary pollution, and it can oxidize membrane contaminants, mitigating the problem of ceramic membrane fouling. Currently, no system has been found that combines ceramic membranes and ozone to treat ship ballast water.

[0004] In view of this, this utility model proposes a treatment device for ship ballast wastewater and tank washing water that uses a combination of ceramic membrane and ozone to solve this problem. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a device for treating ship ballast wastewater and tank washing water, so as to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a treatment device for ship ballast wastewater and tank washing water, including a base. An ozone generator, a micro-nano bubble generator, a catalytic oxidation reactor, and a clear water tank are fixedly installed on the upper surface of the base. The input end of the micro-nano bubble generator is connected to the sewage pipe and the outlet end of the ozone generator. The outlet end of the micro-nano bubble generator is connected to the inner cavity of the catalytic oxidation reactor through a conveying pipe. An aeration component and a ceramic membrane component are respectively installed inside the catalytic oxidation reactor. The aeration component is connected to the conveying pipe. An exhaust pipe and a water outlet pipe are respectively embedded in the top of the catalytic oxidation reactor from left to right. The inlet and outlet ends of the water outlet pipe are connected to the ceramic membrane component and the clear water tank, respectively.

[0007] Furthermore, the aeration assembly includes an air guide plate fixedly installed on the bottom side of the inner wall of the catalytic oxidation reactor. The air guide plate is connected to the conveying pipe. An air guide cavity is opened inside the air guide plate. Several aeration heads are uniformly embedded on the top of the air guide plate. The aeration heads are micro-nano titanium aeration heads.

[0008] As a further description of the above technical solution: by setting up air guide plates and several aeration heads, ozone and wastewater can be fully contacted to ensure oxidation effect.

[0009] Furthermore, the ceramic membrane assembly includes a lower support plate and an upper clamping plate fixedly installed on the inner wall of the catalytic oxidation reactor. Several insertion slots are correspondingly opened between the lower support plate and the upper clamping plate. The ceramic membrane body is inserted into the insertion slot. A connecting slot is opened on the inner wall of the upper clamping plate. The inner cavity of the ceramic membrane body is connected to the connecting slot through the insertion slot, and the connecting slot is connected to the outlet water pipe. The ceramic membrane body is a tubular ceramic membrane, and the material of the ceramic membrane body is aluminum oxide. A first pump body is fixedly installed on the top of the clear water tank. The liquid inlet end of the first pump body is connected to the end of the outlet water pipe. A first gate valve is provided on the surface of the outlet water pipe. A first discharge valve is embedded on the bottom side of the front of the clear water tank.

[0010] As a further description of the above technical solution: by setting up an aeration component, the ceramic membrane body is clamped and positioned by the lower support plate and the upper clamping plate. The water passes through the membrane wall of the ceramic membrane body to complete the treatment. The treated water enters the interior of the connecting tank and enters the interior of the clear water tank under the pumping action of the first pump body.

[0011] Furthermore, a second pump body is fixedly installed on the lower left side of the clear water tank. The inlet end of the second pump body extends into the interior of the clear water tank, and a backflush pipe is fixedly installed on the outlet end of the second pump body. The outlet end of the backflush pipe is connected to the outlet pipeline, and a second gate valve is provided on the surface of the backflush pipe. A second discharge valve is embedded on the bottom side of the front of the catalytic oxidation reactor.

[0012] As a further description of the above technical solution: after a certain period of use, the first gate valve is closed and the second gate valve is opened, and the second pump body is started to pump the clear water inside the clear water tank to the connecting tank, which can achieve the purpose of backwashing and cleaning the impurities on the outer wall of the ceramic membrane body. The cleaned water is discharged to the outside through the second discharge valve.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. Compared with existing technologies, this ship ballast wastewater and tank washing water treatment device involves wastewater entering a micro-nano bubble generator via a sewage pipe and ozone mixed with ozone generated by an ozone generator. The micro-nano bubbles containing ozone and oxygen generated by the micro-nano bubble generator enter the catalytic oxidation reactor along with the wastewater for oxidation. In the catalytic oxidation reactor, the micro-nano bubbles oxidize the wastewater and kill bacteria. The oxidized wastewater is then filtered through a ceramic membrane module, which traps large organic molecules and insect eggs in the reactor. The treated water then enters a clear water tank, achieving the effect of fully treating ship ballast water.

[0015] 2. Compared with existing technologies, this ship ballast wastewater and tank washing water treatment device, by setting up air guide plates and several aeration heads, can ensure sufficient contact between ozone and wastewater, thus ensuring oxidation effect; by setting up aeration components, the ceramic membrane body is clamped and positioned by the lower support plate and the upper clamping plate, and the water passes through the membrane wall of the ceramic membrane body to complete the treatment. The treated water enters the connecting tank and enters the clear water tank under the pumping action of the first pump body; after a certain period of use, the first gate valve is closed and the second gate valve is opened, and the second pump body is started to pump the clear water in the clear water tank to the connecting tank, which can achieve the purpose of backwashing and cleaning the impurities on the outer wall of the ceramic membrane body. The cleaned water is discharged to the outside through the second discharge valve. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the catalytic oxidation reactor of this utility model;

[0018] Figure 3 This is a schematic diagram of the orthographic section of the aeration component of this utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the ceramic membrane module of this utility model.

[0020] The attached diagram is labeled as follows: 1. Base; 2. Ozone generator; 3. Micro-nano bubble generator; 4. Catalytic oxidation reactor; 5. Clear water tank; 6. Sewage pipe; 7. Delivery pipe; 8. Aeration assembly; 801. Air guide plate; 802. Air guide chamber; 803. Aeration head; 9. Ceramic membrane assembly; 901. Lower support plate; 902. Upper clamping plate; 903. Insertion groove; 904. Ceramic membrane body; 905. Connecting groove; 10. Exhaust pipe; 11. Water outlet pipe; 12. First pump body; 13. First gate valve; 14. First discharge valve; 15. Second pump body; 16. Backflush pipe; 17. Second gate valve; 18. Second discharge valve. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The ship ballast wastewater and tank washing water treatment device involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Reference Figures 1 to 4 This utility model provides a device for treating ship ballast wastewater and tank washing water, including a base 1. An ozone generator 2, a micro-nano bubble generator 3, a catalytic oxidation reactor 4, and a clear water tank 5 are fixedly installed on the upper surface of the base 1. The input end of the micro-nano bubble generator 3 is connected to the sewage pipe 6 and the gas outlet end of the ozone generator 2. The gas outlet end of the micro-nano bubble generator 3 is connected to the inner cavity of the catalytic oxidation reactor 4 through a conveying pipe 7. An aeration component 8 and a ceramic membrane component 9 are respectively installed inside the catalytic oxidation reactor 4. The aeration component 8 is connected to the conveying pipe 7.

[0023] The aeration assembly 8 includes an air guide plate 801 fixedly installed on the bottom side of the inner wall of the catalytic oxidation reactor 4. The air guide plate 801 is connected to the conveying pipe 7. An air guide cavity 802 is opened inside the air guide plate 801. Several aeration heads 803 are evenly embedded on the top of the air guide plate 801.

[0024] The 803 aeration head is a micro-nano titanium aeration head.

[0025] It is worth noting that by setting up the air guide plate 901 and several aeration heads 803, ozone and wastewater can be fully contacted, ensuring the oxidation effect.

[0026] The top of the catalytic oxidation reactor 4 is fitted with an exhaust pipe 10 and a water outlet pipe 11 from left to right. The exhaust end of the exhaust pipe 10 is connected to the external air purification component, and the inlet and outlet ends of the water outlet pipe 11 are connected to the ceramic membrane component 9 and the clear water tank 5, respectively.

[0027] The ceramic membrane module 9 includes a lower support plate 901 and an upper clamping plate 902 fixedly installed on the inner wall of the catalytic oxidation reactor 4. A plurality of insertion slots 903 are correspondingly opened between the lower support plate 901 and the upper clamping plate 902. A ceramic membrane body 904 is inserted into the insertion slot 903. A connecting groove 905 is opened on the inner wall of the upper clamping plate 902. The inner cavity of the ceramic membrane body 904 is connected to the connecting groove 905 through the insertion slot 903, and the connecting groove 905 is connected to the outlet water pipe 11.

[0028] The ceramic membrane body 904 is a tubular ceramic membrane, and the material used to make the ceramic membrane body 904 is aluminum oxide.

[0029] A first pump body 12 is fixedly installed on the top of the clear water tank 5. The inlet end of the first pump body 12 is connected to the end of the outlet pipe 11. A first gate valve 13 is provided on the surface of the outlet pipe 11. A first discharge valve 14 is embedded on the bottom side of the front of the clear water tank 5.

[0030] It is worth noting that by setting up an aeration component, the ceramic membrane body 904 is clamped and positioned by the lower support plate 901 and the upper clamping plate 902. The water passes through the membrane wall of the ceramic membrane body 904 to complete the treatment. The treated water enters the interior of the connecting channel 905 and enters the interior of the clear water tank 5 under the pumping action of the first pump body 12.

[0031] The ballast water and tank washing water treatment device for ships involves wastewater entering a micro-nano bubble generator 3 via a mixture of ozone gas generated by a sewage pipe 6 and an ozone generator 2. The micro-nano bubbles containing ozone and oxygen generated by the micro-nano bubble generator 3 enter the catalytic oxidation reactor 4 together with the wastewater for oxidation. In the catalytic oxidation reactor 4, the micro-nano bubbles oxidize the wastewater and kill bacteria. The oxidized wastewater is then filtered through a ceramic membrane module 9, which traps large organic molecules and insect eggs in the wastewater within the reactor. The treated water then enters a clear water tank 5, achieving the effect of fully treating the ship's ballast water.

[0032] A second pump body 15 is fixedly installed on the lower left side of the clear water tank 5. The inlet end of the second pump body 15 extends into the interior of the clear water tank 5. A backflush pipe 16 is fixedly installed on the outlet end of the second pump body 15. The outlet end of the backflush pipe 16 is connected to the outlet pipe 11. A second gate valve 17 is provided on the surface of the backflush pipe 16. A second discharge valve 18 is embedded on the bottom side of the front of the catalytic oxidation reactor 4.

[0033] Furthermore, after a certain period of use, the first gate valve 13 is closed and the second gate valve 17 is opened, and the second pump body 15 is started to pump the clean water inside the clear water tank 5 to the connecting channel 905, which can achieve the purpose of backwashing and cleaning the impurities on the outer wall of the ceramic membrane body 905. The cleaned water is discharged to the outside through the second discharge valve 18, ensuring that the device can be used for a long time.

[0034] Finally, it should be noted that the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A device for treating ship ballast wastewater and tank washing water, comprising a base (1), characterized in that: An ozone generator (2), a micro-nano bubble generator (3), a catalytic oxidation reactor (4), and a clear water tank (5) are fixedly installed on the upper surface of the base (1). The input end of the micro-nano bubble generator (3) is connected to the sewage pipe (6) and the outlet end of the ozone generator (2). The outlet end of the micro-nano bubble generator (3) is connected to the inner cavity of the catalytic oxidation reactor (4) through the conveying pipe (7). The catalytic oxidation reactor (4) is equipped with an aeration component (8) and a ceramic membrane component (9). The aeration component (8) is connected to the conveying pipe (7). The top of the catalytic oxidation reactor (4) is fitted with an exhaust pipe (10) and a water outlet pipe (11) from left to right. The inlet and outlet ends of the water outlet pipe (11) are connected to the ceramic membrane component (9) and the clear water tank (5) respectively.

2. The ship ballast wastewater and tank washing water treatment device according to claim 1, characterized in that: The aeration assembly (8) includes an air guide plate (801) fixedly installed on the bottom side of the inner wall of the catalytic oxidation reactor (4). The air guide plate (801) is connected to the conveying pipe (7). An air guide cavity (802) is opened inside the air guide plate (801). Several aeration heads (803) are evenly embedded on the top of the air guide plate (801).

3. The ship ballast wastewater and tank washing water treatment device according to claim 2, characterized in that: The aeration head (803) is a micro-nano titanium aeration head.

4. The ship ballast wastewater and tank washing water treatment device according to claim 1, characterized in that: The ceramic membrane assembly (9) includes a lower support plate (901) and an upper clamping plate (902) fixedly installed on the inner wall of the catalytic oxidation reactor (4). A number of insertion slots (903) are provided between the lower support plate (901) and the upper clamping plate (902). A ceramic membrane body (904) is inserted into the insertion slot (903). A connecting slot (905) is provided on the inner wall of the upper clamping plate (902). The inner cavity of the ceramic membrane body (904) is connected to the connecting slot (905) through the insertion slot (903), and the connecting slot (905) is connected to the water outlet pipe (11).

5. The ship ballast wastewater and tank washing water treatment device according to claim 4, characterized in that: The ceramic membrane body (904) is a tubular ceramic membrane, and the material used to make the ceramic membrane body (904) is aluminum oxide.

6. The ship ballast wastewater and tank washing water treatment device according to claim 1, characterized in that: The top of the clear water tank (5) is fixedly installed with a first pump body (12), the inlet end of the first pump body (12) is connected to the end of the outlet pipe (11), the surface of the outlet pipe (11) is provided with a first gate valve (13), and the bottom side of the front of the clear water tank (5) is embedded with a first discharge valve (14).

7. The ship ballast wastewater and tank washing water treatment device according to claim 1, characterized in that: A second pump body (15) is fixedly installed on the lower left side of the clear water tank (5). The inlet end of the second pump body (15) extends into the interior of the clear water tank (5). A backflushing pipe (16) is fixedly installed on the outlet end of the second pump body (15). The outlet end of the backflushing pipe (16) is connected to the outlet pipe (11). A second gate valve (17) is provided on the surface of the backflushing pipe (16). A second discharge valve (18) is embedded on the bottom side of the front of the catalytic oxidation reactor (4).

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