CN218174742U - Biochemical treatment system for high-salinity wastewater in lithium battery industry - Google Patents

Biochemical treatment system for high-salinity wastewater in lithium battery industry Download PDF

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Publication number
CN218174742U
CN218174742U CN202222846605.5U CN202222846605U CN218174742U CN 218174742 U CN218174742 U CN 218174742U CN 202222846605 U CN202222846605 U CN 202222846605U CN 218174742 U CN218174742 U CN 218174742U
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tank
filler
anoxic
aerobic tank
mixed liquid
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陈红继
王俊
周继如
王孟洋
李天培
范奕君
赵国华
赵曙光
张丁丁
张洪宾
康晨旭
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Shenzhen Yonker Water Co ltd
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Shenzhen Yonker Water Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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Abstract

The utility model discloses a biochemical treatment system for high-salinity wastewater in lithium battery industry, which comprises an anoxic tank, an aerobic tank and a programmable logic controller, wherein the anoxic tank comprises a filler bracket, biological rope filler, a submersible stirrer arranged at the bottom of the anoxic tank, an anoxic tank water outlet pipe and an ORP (oxidation-reduction potential) online monitor; the aerobic tank comprises a second filler support, a biological rope filler, a liftable cyclone aerator, a mixed liquid return channel partition plate, an aerobic tank water outlet pipe and a DO online monitor. The utility model discloses a biological rope packs, and the specific surface area of the load that can effectual increase microorganism promotes the sewage treatment effect, in addition, has adopted and has promoted formula spiral-flow aerator, avoids the problem that aeration system blockked up.

Description

Biochemical treatment system for high-salinity wastewater in lithium battery industry
Technical Field
The utility model belongs to the technical field of industrial wastewater treatment, concretely relates to biochemical treatment system of lithium electricity trade high salt waste water.
Background
With the rapid development of new energy automobile industry, the consumption of power batteries is greatly promoted, and lithium batteries serving as clean energy become important products in the new energy industry at present.
The lithium battery production process and the disassembly and recovery process of the lithium battery can generate a large amount of wastewater, the main sources are wastewater, cooling water, floor cleaning water, partial raw material waste liquid and the like generated when the positive and negative electrode stirring tanks are cleaned, the water quality characteristics of the lithium battery are that the wastewater components are complex, the salinity is high, the organic matter concentration is high, the ammonia nitrogen concentration is high, the biodegradability is poor, the lithium battery belongs to high-salt high-concentration wastewater, and most of salt substances contained in the lithium battery are Cl - 、SO 4 2- 、Na + 、Ca 2+ And the like.
The high-salinity wastewater refers to wastewater with the total salt content (calculated by the content of sodium chloride) not less than 1 percent, and the wastewater contains a large amount of high-concentration organic matters and inorganic salts, and the direct discharge causes huge pressure on the water environment, so that the eutrophication of rivers and lakes is more serious. The high-salt high-concentration wastewater treatment difficulty is large, and the traditional biochemical treatment system has the following problems:
1. the conventional combined filler (composed of plastic and fiber yarn) is mostly adopted, and has poor strength, small specific surface area and poor hydrophilicity. In a high-salt environment, the biofilm formation amount is small, and the surface of a grown biofilm is easy to be nodulated and agglomerated, so that the contact area of microorganisms and wastewater is influenced, and local excessive falling is easy to cause after agglomeration, and the treatment effect is influenced;
2. the aeration system tradition adopts micropore aeration forms such as tubular aerator, disk aerator, because of inorganic salt content and ash content are higher in the high salt waste water, easily causes the micropore surface scale deposit to block up, and unable the washing is difficult to resume oxygen suppliment ability, and aeration system changes after blockking up and overhauls the difficulty.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model discloses make the improvement to the problem that above-mentioned prior art exists, promptly the utility model discloses a biochemical treatment system of lithium electricity trade high salt waste water. The utility model discloses a biological rope filler, the specific surface area of the load that can effectual increase microorganism promotes the sewage treatment effect, in addition, has adopted and has promoted formula spiral-flow aeration ware, avoids the problem that aeration system blockked up.
The technical scheme is as follows: the utility model provides a biochemical treatment system of lithium electricity trade high salt waste water, includes:
an anoxic tank, comprising:
the filler support is formed by welding a plurality of channel steel along the length direction of the wall pool of the anoxic pool to form a main body supporting framework, a plurality of round steel or deformed steel bars are welded in the vertical direction of the main body supporting framework, the shape of the filler support is matched with that of the anoxic pool, and the filler support is arranged at the middle upper part of the anoxic pool;
one end of the biological rope filler is connected with the top side of the filler bracket, and the other end of the biological rope filler is connected with the bottom side of the filler bracket;
the submersible stirrer is arranged at the anoxic bottom;
the water outlet pipe of the anoxic tank is arranged at the middle upper part of the tank wall of the anoxic tank;
the ORP on-line monitor is arranged in the anoxic tank and is used for monitoring the ORP value of the sewage in the anoxic tank;
the good oxygen pond, its liquid level is located the below of oxygen deficiency pond outlet pipe, the sewage of handling through the oxygen deficiency pond flows into good oxygen pond through oxygen deficiency pond outlet pipe, good oxygen pond includes:
the second filler support is formed by welding a plurality of channel steel along the length direction of the wall of the aerobic tank to form a main body supporting framework, a plurality of round steel or deformed steel bars are welded in the vertical direction of the main body supporting framework, the shape of the second filler support is matched with that of the aerobic tank, and the second filler support is arranged at the middle upper part of the aerobic tank;
one end of the biological rope filler is connected with the top side of the second filler support, and the other end of the biological rope filler is connected with the bottom side of the second filler support;
the liftable cyclone aerator is arranged at the middle lower part of the aerobic tank, the air inlet end of the liftable cyclone aerator is connected with one end of a vertical branch pipe, the other end of the vertical branch pipe is connected with a horizontal pipe through a flange, and the air inlet of the horizontal pipe is externally connected with an aeration fan;
the mixed liquid backflow channel partition plate or partition wall is arranged at the tail end of the aerobic tank, a mixed liquid backflow channel is formed at the tail end of the aerobic tank, a mixed liquid backflow pump is arranged at the middle lower part of the aerobic tank, a mixed liquid backflow pipe is arranged at the middle upper part of the channel wall of the mixed liquid backflow channel, the liquid level of the mixed liquid backflow channel is higher than that of the anoxic tank, and the mixed liquid in the mixed liquid backflow channel flows into the anoxic tank through the mixed liquid backflow pipe;
the water outlet pipe of the aerobic tank is arranged at the middle upper part of the tank wall of the aerobic tank;
the DO online monitor is arranged in the aerobic tank and is used for monitoring the DO value of sewage in the aerobic tank;
the ORP online monitor and the DO online monitor are connected with the input end of the programmable logic controller, and the output end of the programmable logic controller is connected with the input end of the submersible stirrer, the input end of the aeration fan and the input end of the mixed liquid reflux pump.
The sewage treatment device comprises an aerobic tank, a secondary sedimentation tank and a sludge scraper, wherein the liquid level of the secondary sedimentation tank is positioned below a water outlet pipe of the aerobic tank, the sewage treated by the aerobic tank flows into the secondary sedimentation tank through the water outlet pipe of the aerobic tank, the sludge scraper is arranged in the secondary sedimentation tank, the bottom of the secondary sedimentation tank is communicated with the anoxic tank through a sludge return pipe, a sludge return pump is arranged on the sludge return pipe, and a water outlet pipe of the secondary sedimentation tank is arranged at the middle upper part of the tank wall of the secondary sedimentation tank;
and the output end of the programmable logic controller is respectively connected with the input end of the mud scraper and the sludge reflux pump.
Furthermore, the bottom of the secondary sedimentation tank is also provided with a sludge external discharge pipe.
Furthermore, the biological rope filler is a rope braid type biological rope filler, the biological rope filler is vertically arranged, and the installation distance between every two adjacent biological rope fillers is 100-200 mm.
Further, the outer surface of the filler support and the outer surface of the second filler support are both coated with an anti-corrosion coating.
Furthermore, the anoxic pond is also provided with an anoxic pond water inlet pipe.
Furthermore, the liftable cyclone aerator is integrally formed by composite materials resistant to chloride ion corrosion.
Furthermore, the periphery of the vertical branch pipe is provided with a containing space for containing the detachable and separated liftable cyclone aerator.
Has the advantages that: the utility model discloses a biochemical treatment system of lithium electricity trade high salt waste water has following beneficial effect:
1. the biological rope filler is adopted to replace the conventional biological combined filler as a microbial carrier, the annular structure of the biological rope filler can improve the strength and can avoid excessive falling of a biological film caused by water flow impact; the biological rope presents certain elasticity, can shake in waste water to a small extent, can absorb dissolved oxygen in water, can improve the contact efficiency with the waste water, and improves the oxygenation efficiency and the removal rate of organic matters; meanwhile, the braid weaving mode increases the specific surface area and improves the biofilm formation biomass, thereby improving the pollutant removal efficiency.
2. The aeration system adopts a liftable rotational flow aerator (adopts the principle of multilayer spiral cutting for oxygenation), and the large channel structure of the aeration system avoids the blockage of the conventional microporous aeration system.
3. The design of the liftable cyclone aerator is convenient for installation, replacement and maintenance.
Drawings
Fig. 1 is the utility model discloses a biochemical treatment system of high salt waste water of lithium electricity trade schematic diagram.
Wherein:
1-anoxic pond water inlet pipe 2-biological rope filler
3-Filler support 4-diving agitator
5-anoxic pond outlet pipe 6-liftable cyclone aerator
7-vertical branch pipe 8-Flange
9-horizontal cross tube 10-aeration fan
11-mixed solutionReflux pump 12-mixed liquid return pipe
13-aerobic tank outlet pipe 14-mud scraper
15-sludge reflux pump 16-sludge return pipe
17-secondary sedimentation tank water outlet pipe 18-ORP on-line monitor
19-DO on-line monitor
The specific implementation mode is as follows:
the following is a detailed description of specific embodiments of the present invention.
As shown in fig. 1, a biochemical treatment system for high-salinity wastewater in lithium battery industry comprises:
an anoxic tank, comprising:
the filler support 3 is formed by welding a plurality of channel steel along the length direction of the wall of the anoxic tank to form a main body support framework, a plurality of round steel or deformed steel bars are welded in the vertical direction of the main body support framework, the shape of the filler support 3 is matched with that of the anoxic tank, and the filler support 3 is arranged at the middle upper part of the anoxic tank;
one end of the biological rope filler 2 is connected with the top side of the filler bracket 3, and the other end of the biological rope filler 2 is connected with the bottom side of the filler bracket 3;
the submersible stirrer 4 is arranged at the anoxic bottom;
the water outlet pipe 5 of the anoxic tank is arranged at the middle upper part of the tank wall of the anoxic tank;
the ORP on-line monitor 18 is arranged in the anoxic tank and used for monitoring the ORP value of the sewage in the anoxic tank;
the good oxygen pond, its liquid level is located the below of oxygen deficiency pond outlet pipe 5, the sewage that handles through the oxygen deficiency pond flows into good oxygen pond through oxygen deficiency pond outlet pipe 5, good oxygen pond includes:
the second filler support is formed by welding a plurality of channel steel along the length direction of the wall of the aerobic tank to form a main body supporting framework, a plurality of round steel or deformed steel bars are welded in the vertical direction of the main body supporting framework, the shape of the second filler support is matched with that of the aerobic tank, and the second filler support is arranged at the middle upper part of the aerobic tank;
one end of the biological rope filler 2 is connected with the top side of the second filler bracket, and the other end of the biological rope filler 2 is connected with the bottom side of the second filler bracket;
the liftable cyclone aerator 6 is arranged at the middle lower part of the aerobic tank, the air inlet end of the liftable cyclone aerator 6 is connected with one end of a vertical branch pipe 7, the other end of the vertical branch pipe 7 is connected with a horizontal transverse pipe 9 through a flange 8, and the air inlet of the horizontal transverse pipe 9 is externally connected with an aeration fan 10;
the mixed liquid backflow channel partition plate or partition wall is arranged at the tail end of the aerobic tank, a mixed liquid backflow channel is formed at the tail end of the aerobic tank, a mixed liquid backflow pump 11 is arranged at the middle lower part of the aerobic tank, the mixed liquid backflow pump 11 is used for pumping liquid at the middle front end of the aerobic tank into the mixed liquid backflow channel, a mixed liquid backflow pipe 12 is arranged at the middle upper part of the channel wall of the mixed liquid backflow channel, the liquid level of the mixed liquid backflow channel is higher than that of the anoxic tank, and the mixed liquid in the mixed liquid backflow channel flows into the anoxic tank through the mixed liquid backflow pipe 12;
the water outlet pipe 13 of the aerobic tank is arranged at the middle upper part of the tank wall of the aerobic tank;
the DO online monitor 19 is arranged in the aerobic tank and used for monitoring the DO value of the sewage in the aerobic tank;
the ORP online monitor 18 and the DO online monitor 19 are connected with the input end of the programmable logic controller, and the output end of the programmable logic controller is connected with the input end of the submersible stirrer 4, the input end of the aeration fan 10 and the input end of the mixed liquid reflux pump 11 and is used for respectively controlling the start and stop of the submersible stirrer 4, the aeration fan 10 and the mixed liquid reflux pump 11.
Further, the device also comprises a secondary sedimentation tank, wherein the liquid level of the secondary sedimentation tank is positioned below the water outlet pipe 13 of the aerobic tank, sewage treated by the aerobic tank flows into the secondary sedimentation tank through the water outlet pipe 13 of the aerobic tank, a mud scraper 14 is arranged in the secondary sedimentation tank, the bottom of the secondary sedimentation tank is communicated with the anoxic tank through a sludge return pipe 16, a sludge return pump 15 is arranged on the sludge return pipe 16, and a secondary sedimentation tank water outlet pipe 17 is arranged at the middle upper part of the tank wall of the secondary sedimentation tank;
the output end of the programmable logic controller is respectively connected with the input end of the mud scraper 14 and the sludge reflux pump 15, and is used for controlling the start and stop of the mud scraper 14 and the sludge reflux pump 15.
Furthermore, the bottom of the secondary sedimentation tank is also provided with a sludge external discharge pipe. One part of sludge at the bottom of the secondary sedimentation tank is conveyed to the anoxic tank through a sludge return pipe 16 by a sludge return pump 15, and the other part of residual sludge is directly discharged through a sludge discharge pipe.
Further, the biological rope filler 2 is a rope type braid biological rope filler, the biological rope filler 2 is vertically arranged in the anoxic pond or the aerobic pond, and the installation distance between two adjacent biological rope fillers 2 is 150mm. In another embodiment, the installation distance between two adjacent bio-rope fillers 2 is 100mm. In yet another embodiment, the installation distance between two adjacent bio-rope fillers 2 is 200mm.
Furthermore, the outer surfaces of the filler support 3 and the second filler support are coated with an anticorrosive coating.
Further, the anoxic pond is also provided with an anoxic pond water inlet pipe 1. The anoxic pond water inlet pipe 1 is made of plastic resistant to chloride ion corrosion, steel-lined plastic or other seawater-grade corrosion-resistant materials.
Further, the liftable cyclone aerator 6 is integrally formed of a composite material resistant to chloride ion corrosion. The liftable cyclone aerator 6 adopts a large-channel overflowing structure and is mounted in a suspended mode.
Furthermore, a containing space for containing the detachable and separated lifting type cyclone aerator 6 is arranged around the vertical branch pipe 7. During the use, can promote formula swirl aerator 6 and violently manage 9 with the level through vertical branch pipe 7 and be connected, the level is violently managed 9 and is connected to aeration fan 10 exit, and vertical branch pipe 7 is violently managed 9 with the level and is connected through flange 8, and for the ease of vertical branch pipe 7 and the horizontal dismantlement of violently managing 9 separate simultaneously, the promotion operating space that can promote formula swirl aerator 6 has been reserved during the installation to adjacent biological rope filler 2.
The anoxic tank water outlet pipe 5, the mixed liquid return pipe 12, the aerobic tank water outlet pipe 13, the sludge return pipe 16 and the secondary sedimentation tank water outlet pipe 17 are all made of chloride ion corrosion resistant plastics, lining plastics or other seawater level corrosion resistant materials.
The specific implementation method for treating sewage by adopting the biochemical treatment system for the high-salinity wastewater in the lithium battery industry comprises the following steps:
1. after the comprehensive high-salt wastewater (with the salt content of 1-10%) discharged in the lithium battery industry is subjected to certain pretreatment in the early stage, the comprehensive high-salt wastewater enters the biochemical treatment system of the high-salt wastewater in the lithium battery industry through the anoxic tank water pipe 1;
inoculating salt-tolerant strains which are selected and domesticated from salt fields, salt lakes and the like into an anoxic tank, wherein the salt-tolerant strains comprise a compound microbial flora consisting of salt-tolerant COD degrading bacteria, salt-tolerant nitrifying bacteria, salt-tolerant denitrifying bacteria, salt-tolerant phosphorus accumulating bacteria and the like, the salt-tolerant strains are attached to the surface of a biological rope filler 2 suspended in the anoxic tank to form a biological film, a submersible stirrer 4 at the bottom of the tank is operated to prevent the deposition of sludge at the bottom of the anoxic tank, the denitrifying bacteria complete the denitrification process by utilizing a carbon source in water and nitrifying liquid refluxed by an aerobic tank, and wastewater treated by the anoxic tank enters the aerobic tank through a water outlet pipe 5 of the anoxic tank;
2. air is blown into the aerobic tank through an aeration fan 10, a connecting pipeline consisting of a horizontal transverse pipe 9 and a vertical branch pipe 7 and an aeration system consisting of a liftable cyclone aerator 6, and air is blown into the aerobic tank by utilizing a cyclone structure of the liftable cyclone aerator 6 to form lifting, stirring and sufficient mixing of a gas-liquid mixture, the gas enters from the bottom of the liftable cyclone aerator 6, and is cut for multiple times in the ascending process to generate micro bubbles for releasing, so that the wastewater in the tank body is in a flowing state, the wastewater is in sufficient contact with a biological rope filler 2, COD and ammonia nitrogen are reduced through proliferation of aerobic microorganisms on the surface of the biological rope filler 2, biological denitrification can be performed through proliferation of anoxic microorganisms in a biological rope, thereby completing carbonization, nitrification and partial denitrification, a nitrification liquid flows back to the anoxic tank through a return channel and a mixed liquid return pipe 12 through a mixed liquid return pump 11, the denitrification is performed in the anoxic tank, thereby removing total nitrogen in the wastewater, when the liftable cyclone aerator 6 needs to be overhauled, the mixed liquid is replaced by pulling the vertical branch pipe 7 and the horizontal transverse pipe 9, and the mixed liquid return pipe 8, and the lifting cyclone aerator 6 is pulled out of the overhauling tank to be overhauled;
3. sewage treated by the aerobic tank enters a secondary sedimentation tank through an aerobic tank water outlet pipe 13, a sludge scraper 14 is arranged in the secondary sedimentation tank to scrape bottom sludge, effluent of a biochemical system after solid-liquid separation is discharged into a subsequent treatment process through a secondary sedimentation tank water outlet pipe 17, part of sludge at the bottom is returned to an anoxic tank through a sludge return pipe 16 by a sludge return pump 15, and part of sludge is discharged to a sludge treatment system;
4. the running condition of water quality is monitored by detecting ORP and DO of the anoxic tank, the RRP range of the anoxic tank is controlled to be-100 mv to +100mv, and the DO range of the aerobic tank is controlled to be 2-4 mg/L, and meanwhile, the running frequency of an aeration fan 10 can be controlled in a linkage manner through the display quantity of instruments, and the aeration quantity of the aerobic tank is adjusted.
The embodiments of the present invention have been described in detail. However, the present invention is not limited to the above embodiment, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (6)

1. The utility model provides a biochemical treatment system of lithium electricity trade high salt waste water which characterized in that includes:
an anoxic tank, comprising:
the filler support is formed by welding a plurality of channel steel along the length direction of the wall pool of the anoxic pool to form a main body supporting framework, a plurality of round steel or deformed steel bars are welded in the vertical direction of the main body supporting framework, the shape of the filler support is matched with that of the anoxic pool, and the filler support is arranged at the middle upper part of the anoxic pool;
one end of the biological rope filler is connected with the top side of the filler bracket, and the other end of the biological rope filler is connected with the bottom side of the filler bracket;
the submersible stirrer is arranged at the anoxic bottom;
the water outlet pipe of the anoxic tank is arranged at the middle upper part of the tank wall of the anoxic tank;
the ORP online monitor is arranged in the anoxic tank and is used for monitoring the ORP value of sewage in the anoxic tank;
the good oxygen pond, its liquid level is located the below of oxygen deficiency pond outlet pipe, the sewage of handling through the oxygen deficiency pond flows into good oxygen pond through oxygen deficiency pond outlet pipe, good oxygen pond includes:
the second filler support is formed by welding a plurality of channel steel along the length direction of the wall of the aerobic tank to form a main body supporting framework, a plurality of round steel or deformed steel bars are welded in the vertical direction of the main body supporting framework, the shape of the second filler support is matched with that of the aerobic tank, and the second filler support is arranged at the middle upper part of the aerobic tank;
one end of the biological rope filler is connected with the top side of the second filler bracket, and the other end of the biological rope filler is connected with the bottom side of the second filler bracket;
the liftable cyclone aerator is arranged at the middle lower part of the aerobic tank, the air inlet end of the liftable cyclone aerator is connected with one end of a vertical branch pipe, the other end of the vertical branch pipe is connected with a horizontal transverse pipe through a flange, and the air inlet of the horizontal transverse pipe is externally connected with an aeration fan;
the mixed liquid backflow channel partition plate or partition wall is arranged at the tail end of the aerobic tank, a mixed liquid backflow channel is formed at the tail end of the aerobic tank, a mixed liquid backflow pump is arranged at the middle lower part of the aerobic tank, a mixed liquid backflow pipe is arranged at the middle upper part of the channel wall of the mixed liquid backflow channel, the liquid level of the mixed liquid backflow channel is higher than that of the anoxic tank, and the mixed liquid in the mixed liquid backflow channel flows into the anoxic tank through the mixed liquid backflow pipe;
the water outlet pipe of the aerobic tank is arranged at the middle upper part of the wall of the aerobic tank;
the DO online monitor is arranged in the aerobic tank and is used for monitoring the DO value of sewage in the aerobic tank;
the ORP online monitor and the DO online monitor are connected with the input end of the programmable logic controller, and the output end of the programmable logic controller is connected with the input end of the submersible stirrer, the input end of the aeration fan and the input end of the mixed liquid reflux pump.
2. The biochemical treatment system for the high-salinity wastewater in the lithium battery industry according to claim 1, further comprising a secondary sedimentation tank, wherein the liquid level of the secondary sedimentation tank is located below the water outlet pipe of the aerobic tank, the wastewater treated by the aerobic tank flows into the secondary sedimentation tank through the water outlet pipe of the aerobic tank, a mud scraper is arranged in the secondary sedimentation tank, the bottom of the secondary sedimentation tank is communicated with the anoxic tank through a sludge return pipe, a sludge return pump is arranged on the sludge return pipe, and the water outlet pipe of the secondary sedimentation tank is arranged at the middle upper part of the tank wall of the secondary sedimentation tank;
and the output end of the programmable logic controller is respectively connected with the input end of the mud scraper and the sludge reflux pump.
3. The biochemical treatment system for the high-salinity wastewater in the lithium ion battery industry according to claim 2, wherein a sludge discharge pipe is further arranged at the bottom of the secondary sedimentation tank.
4. The biochemical treatment system for the high-salinity wastewater in the lithium battery industry according to claim 1, wherein the biological cord filler is a braided rope type biological cord filler, the biological cord filler is vertically arranged, and the installation distance between two adjacent biological cord fillers is 100-200 mm.
5. The biochemical treatment system for the high-salinity wastewater in the lithium battery industry according to claim 1, wherein an anticorrosive coating is coated on both the outer surface of the filler support and the outer surface of the second filler support.
6. The biochemical treatment system for the high-salinity wastewater in the lithium battery industry according to claim 1, wherein the anoxic tank is further provided with an anoxic tank water inlet pipe.
CN202222846605.5U 2022-10-27 2022-10-27 Biochemical treatment system for high-salinity wastewater in lithium battery industry Active CN218174742U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222846605.5U CN218174742U (en) 2022-10-27 2022-10-27 Biochemical treatment system for high-salinity wastewater in lithium battery industry

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222846605.5U CN218174742U (en) 2022-10-27 2022-10-27 Biochemical treatment system for high-salinity wastewater in lithium battery industry

Publications (1)

Publication Number Publication Date
CN218174742U true CN218174742U (en) 2022-12-30

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