CN209759259U - Photovoltaic cell production wastewater treatment process system - Google Patents
Photovoltaic cell production wastewater treatment process system Download PDFInfo
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- CN209759259U CN209759259U CN201920472765.3U CN201920472765U CN209759259U CN 209759259 U CN209759259 U CN 209759259U CN 201920472765 U CN201920472765 U CN 201920472765U CN 209759259 U CN209759259 U CN 209759259U
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Abstract
the utility model discloses a photovoltaic cell production wastewater treatment process system, which comprises a materialization pretreatment system and a biochemical treatment system, wherein the materialization pretreatment system comprises a concentrated ammonia wastewater materialization pretreatment subsystem, an acid-base wastewater materialization pretreatment subsystem and a fluorine-containing wastewater materialization pretreatment subsystem; the biochemical treatment system comprises a biochemical regulating tank, a primary AO biochemical reaction tank, a secondary sedimentation tank and a clean water tank. The utility model discloses carry out the pretreatment respectively with concentrated ammonia waste water, acid-base waste water and fluoride-containing waste water, reduce total nitrogen content, acid-base pollutant and the fluorine pollutant in the waste water, alleviateed the processing degree of difficulty of synthesizing waste water, the treatment effeciency is high.
Description
Technical Field
The utility model belongs to the technical field of industrial wastewater treatment, concretely relates to photovoltaic cell waste water treatment process systems.
Background
With the continuous development and progress of society, people pay more and more attention to the utilization of resources, solar cells become a research focus, correspondingly, the photovoltaic industry also appears, silicon solar cells taking silicon as a substrate are widely used in the ground photovoltaic system at present, and the photovoltaic cells can generate a large amount of waste water in the production process, so that a new environmental problem is brought.
The photovoltaic cell production wastewater can be subdivided into monocrystalline silicon production line drainage and polycrystalline silicon production line drainage according to production products, and the working section with sewage discharge in the production process is mainly a texturing and cleaning working section. The photovoltaic cell production wastewater is mainly divided into concentrated ammonia wastewater, fluorine-containing wastewater and acid-base comprehensive wastewater, all wastewater is usually mixed together for treatment by the conventional wastewater treatment process, and due to the fact that pollutants in the wastewater are various in types and the effect after treatment is unsatisfactory, the discharge requirement cannot be met, and even secondary pollution is caused in the treatment process.
Disclosure of Invention
To the technical problem, the utility model aims at providing a can effective treatment photovoltaic cell waste water, make it finally reach the photovoltaic cell waste water treatment process systems of the three specified emission limits in battery industry pollutant discharge standard (GB 30484-2013) table.
Therefore, the utility model discloses the technical scheme who adopts does: a photovoltaic cell production wastewater treatment process system comprises a physicochemical pretreatment system and a biochemical treatment system, wherein the physicochemical pretreatment system comprises a concentrated ammonia wastewater physicochemical pretreatment subsystem, an acid-base wastewater physicochemical pretreatment subsystem and a fluorine-containing wastewater physicochemical pretreatment subsystem;
The system comprises a concentrated ammonia wastewater physicochemical pretreatment subsystem and a biochemical treatment system, wherein the concentrated ammonia wastewater physicochemical pretreatment subsystem comprises a concentrated ammonia wastewater collection tank and an ammonia stripping and absorbing treatment all-in-one machine;
The system comprises an acid-base wastewater physicochemical pretreatment subsystem and an acid-base wastewater efficient reaction device, wherein acid-base comprehensive wastewater enters the acid-base wastewater regulation tank to be regulated in water quality and water quantity and then is lifted by an acid-base wastewater lifting pump to enter the acid-base wastewater efficient reaction device, effluent of the acid-base wastewater efficient reaction device enters a biochemical treatment system, and sludge precipitated by the acid-base wastewater efficient reaction device is discharged into a sludge collection tank;
The physicochemical pretreatment subsystem of the fluorine-containing wastewater comprises a fluorine-containing wastewater adjusting tank, a primary fluorine-removing coagulating sedimentation combined tank, a secondary fluorine-removing coagulating sedimentation combined tank, a tertiary fluorine-removing coagulating sedimentation combined tank and an adsorption fluorine remover, wherein the fluorine-containing wastewater enters the fluorine-containing wastewater adjusting tank, is homogenized and equalized, and then is lifted by a fluorine-containing wastewater lifting pump to enter the primary fluorine-removing coagulating sedimentation combined tank, a water outlet of the primary fluorine-removing coagulating sedimentation combined tank is connected with the secondary fluorine-removing coagulating sedimentation combined tank, a water outlet of the secondary fluorine-removing coagulating sedimentation combined tank is connected with the tertiary fluorine-removing coagulating sedimentation combined tank, a water outlet of the tertiary fluorine-removing coagulating sedimentation combined tank is connected with the adsorption fluorine remover, and sludge precipitated in the primary fluorine-removing coagulating sedimentation combined tank, the secondary fluorine-removing coagulating sedimentation combined tank and the tertiary fluorine-removing coagulating sedimentation combined tank is discharged into a sludge collection tank;
The biochemical treatment system comprises a biochemical regulating tank, a primary AO biochemical reaction tank, a secondary sedimentation tank and a clean water tank, wherein the effluent of the ammonia stripping and absorbing integrated treatment machine after treatment, the effluent of the acid-base wastewater high-efficiency reaction device and the effluent of the adsorption fluorine removal device all enter the biochemical regulating tank, the effluent is homogenized and equalized in the regulating tank and then enters the primary AO biochemical reaction tank through a lifting pump, a water outlet of the primary AO biochemical reaction tank is connected with the secondary AO biochemical reaction tank, a water outlet of the secondary AO biochemical reaction tank is connected with the secondary sedimentation tank, the supernatant in the secondary sedimentation tank enters the clean water tank, the supernatant in the clean water tank is discharged into an environmental water body or used for road washing, water-containing sludge flows back to the primary AO biochemical reaction tank, and the rest sludge is discharged into a sludge collection tank.
Preferably, the system further comprises a membrane advanced treatment system for further advanced treatment of the supernatant in the clear water tank, wherein the membrane advanced treatment system comprises a sand-carbon combined filter, a microfilter, an ultrafiltration treatment machine, a reverse osmosis device, a recycling water tank and a metering discharge tank, the supernatant in the clear water tank is lifted by a clear water lift pump to enter the sand-carbon combined filter, the water outlet of the sand-carbon combined filter is connected with the microfilter, the effluent of the microfilter is lifted by a microfiltration lift pump to enter the ultrafiltration treatment machine, the effluent of the ultrafiltration treatment machine is pressurized by a high-pressure pump to enter the reverse osmosis device, the fresh water outlet of the reverse osmosis device is connected with the recycling water tank, the concentrated water outlet of the reverse osmosis device is connected with the metering discharge tank, and the effluent of the metering discharge tank is discharged into a sewage treatment plant in an industrial park for subsequent treatment. By adopting the structure, the supernatant in the clear water tank can be purified into pure water after being treated by the membrane method deep treatment system, so that the pure water can be recycled, and the resource utilization rate can be improved.
preferably, an online pH meter is arranged in the acid-base wastewater high-efficiency reaction device. By adopting the structure, the pH value of the acid-base wastewater in the acid-base wastewater high-efficiency reaction device can be monitored, the amount of acid or alkali is timely adjusted according to the pH value, the working efficiency is improved, and the acid-base waste is reduced.
Preferably, the sludge collected in the sludge collection tank is pumped into a box-type filter press by a sludge lifting pump, the dry sludge subjected to filter pressing by the box-type filter press is transported outwards, and the filter pressing water flows back to the acid-base wastewater adjusting tank. By adopting the structure, the van-type filter press is low in cost and long in service life, filter-pressing water of the van-type filter press flows back to the acid-base wastewater adjusting tank for secondary treatment, so that the van-type filter press is more environment-friendly and prevents pollution.
Preferably, the system also comprises a domestic sewage collecting tank, and the effluent of the domestic sewage collecting tank is lifted by a sewage lifting pump to enter the biochemical regulating tank. By adopting the structure, the domestic sewage is introduced into the system, so that the biodegradability of the wastewater is improved, the dosage of the denitrification carbon source is reduced, and the domestic sewage is treated.
The utility model has the advantages that: the concentrated ammonia wastewater, the acid-base wastewater and the fluorine-containing wastewater are respectively pretreated, so that the total nitrogen content, acid-base pollutants and fluorine pollutants in the wastewater are reduced, the treatment difficulty of the comprehensive wastewater is reduced, and the treatment efficiency is high; the concentrated ammonia wastewater is subjected to stripping and recovery treatment, so that the total nitrogen content in the wastewater can be effectively reduced, and the recovery utilization rate of the wastewater is improved; the fluorine-containing wastewater is treated by adopting the three-stage fluorine removal coagulation sedimentation combined tank combination and the adsorption fluorine removal device, so that fluorine pollutants in the wastewater can be effectively removed; and the combination of two stages of AO biochemical reaction tanks is adopted, so that the denitrification effect is ensured, and the total nitrogen of the discharged water is ensured to reach the standard.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention will be further described by way of examples with reference to the accompanying drawings:
As shown in fig. 1, a photovoltaic cell production wastewater treatment process system comprises a materialization pretreatment system, a biochemical treatment system and a membrane advanced treatment system, wherein the materialization pretreatment system comprises a concentrated ammonia wastewater materialization pretreatment subsystem, an acid-base wastewater materialization pretreatment subsystem and a fluorine-containing wastewater materialization pretreatment subsystem. The concentrated ammonia wastewater is subjected to stripping and recovery pretreatment through a concentrated ammonia wastewater physicochemical pretreatment subsystem, so that the total nitrogen content in the concentrated ammonia wastewater can be reduced, the denitrification difficulty of the comprehensive wastewater is reduced, the acid-base wastewater is pretreated through an acid-base wastewater physicochemical pretreatment subsystem, the acid-base wastewater is subjected to neutralization, coagulation, flocculation and precipitation reactions, the fluorine-containing wastewater is pretreated through a fluorine-containing wastewater physicochemical pretreatment subsystem, so that fluorine pollutants in the wastewater can be effectively removed, the concentrated ammonia wastewater, the acid-base wastewater and the fluorine-containing wastewater are respectively pretreated through the physicochemical pretreatment subsystem, and the treatment difficulty of the comprehensive wastewater can be effectively reduced; the biochemical treatment system removes ammonia nitrogen organic matters in the comprehensive wastewater through nitration and denitrification reactions, so that the wastewater reaches the direct discharge limit value specified by the discharge standard of battery industrial pollutants (GB 30484-2013), and can be discharged into an environmental water body or used for road flushing; the membrane method deep treatment system can carry out deep purification on the wastewater, so that the photovoltaic cell production wastewater can finally reach the recycling standard.
As shown in fig. 1, the concentrated ammonia wastewater physicochemical pretreatment subsystem comprises a concentrated ammonia wastewater collection tank 1 and an ammonia stripping and absorption treatment all-in-one machine 2, after the concentrated ammonia wastewater enters the concentrated ammonia wastewater collection tank 1 for regulation, the concentrated ammonia wastewater is lifted by a concentrated ammonia wastewater lifting pump to enter the ammonia stripping and absorption treatment all-in-one machine 2, the ammonia stripping and absorption treatment all-in-one machine 2 is the existing equipment, air is blown into a stripping section of the ammonia stripping and absorption treatment all-in-one machine 2 under an alkaline condition, the stripped ammonia-containing waste gas enters an absorption section of the ammonia stripping and absorption treatment all-in-one machine 2, ammonia is sprayed and recovered, and the stripped ammonia-containing wastewater enters a biochemical treatment system. The ammonia in the concentrated ammonia wastewater is recycled, the resource utilization rate is improved, and the total nitrogen content in the concentrated ammonia wastewater is reduced.
As shown in fig. 1, the acid-base wastewater physicochemical pretreatment subsystem comprises an acid-base wastewater adjusting tank 3 and an acid-base wastewater efficient reaction device 4, after the acid-base comprehensive wastewater enters the acid-base wastewater adjusting tank 3 to adjust the water quality and the water quantity, the acid-base comprehensive wastewater is lifted by an acid-base wastewater lifting pump to enter the acid-base wastewater efficient reaction device 4, the acid-base wastewater efficient reaction device 4 is an existing device and comprises an acid-base neutralization section, a flocculation section and a precipitation section which are sequentially connected, the acid-base wastewater firstly enters the acid-base neutralization section, an online PH meter is arranged in the acid-base neutralization section, under the monitoring of the online PH meter, acid or base is added into the acid-base neutralization section to complete the neutralization reaction, then the acid-base wastewater flows into the flocculation section, a coagulant PAC and a flocculant PAM are added into the flocculation section to enable the acid-base wastewater to generate acid-base wastewater to undergo flocculation, alum floc is, supernatant in the precipitation section enters a biochemical treatment system, and precipitated sludge is discharged into a sludge collection tank 21.
As shown in figure 1, the physicochemical pretreatment subsystem of the fluorine-containing wastewater comprises a fluorine-containing wastewater adjusting tank 5, a primary defluorination coagulation sedimentation combination tank 6, a secondary defluorination coagulation sedimentation combination tank 7, a tertiary defluorination coagulation sedimentation combination tank 8 and an adsorption defluorination device 9 which are connected in sequence, wherein the primary defluorination coagulation sedimentation combination tank 6, the secondary defluorination coagulation sedimentation combination tank 7 and the tertiary defluorination coagulation sedimentation combination tank 8 respectively comprise a reaction section and a sedimentation section, after the fluorine-containing wastewater enters the fluorine-containing wastewater adjusting tank 5 for homogenization, the fluorine-containing wastewater is lifted by a fluorine-containing wastewater lifting pump to enter the reaction section of the primary defluorination coagulation sedimentation combination tank 6, calcium hydroxide is added into the reaction section of the primary defluorination coagulation sedimentation combination tank 6 to enable calcium ions and fluorine ions to generate CaF2 sedimentation, and after coagulant PAC and flocculant are subsequently added to generate alum blossom, the sludge and water are separated in the sedimentation section of the primary defluor, discharging sludge precipitated in a precipitation section of a primary defluorination and coagulation sedimentation combination tank 6 into a sludge collection tank 21, enabling supernatant to enter a reaction section of a secondary defluorination and coagulation sedimentation combination tank 7, adding calcium hydroxide into the reaction section of the secondary defluorination and coagulation sedimentation combination tank 7 to enable calcium ions and fluoride ions to generate CaF2 for sedimentation, subsequently adding a coagulant PAC and a flocculant PAM to generate alum floc, entering the precipitation section of the secondary defluorination and coagulation sedimentation combination tank 7 for sludge-water separation, discharging sludge precipitated in the precipitation section of the secondary defluorination and coagulation sedimentation combination tank 7 into the sludge collection tank 21, enabling supernatant to enter a reaction section of a tertiary defluorination and coagulation sedimentation combination tank 8, adding a composite defluorination agent into the reaction section of the tertiary defluorination and coagulation sedimentation combination tank 8 to further enable the fluoride ions to generate sedimentation, subsequently adding the PAC coagulant and the coagulant PAM to generate alum floc, entering the precipitation section of the tertiary defluorination and coagulation sedimentation combination tank 8 for sludge-water separation, sludge precipitated in the precipitation section of the three-stage defluorination coagulation precipitation combined tank 8 is discharged into a sludge collection tank 21, supernatant enters an adsorption defluorination device 9, the adsorption defluorination device 9 is an adsorption tank filled with fluorine adsorption filler, and effluent subjected to defluorination treatment by an adsorption method in the adsorption defluorination device 9 enters a biochemical treatment system;
As shown in figure 1, the biochemical treatment system comprises a biochemical regulating tank 10, a first-stage AO biochemical reaction tank 11, a second-stage AO biochemical reaction tank 12, a secondary sedimentation tank 13 and a clean water tank 14 which are connected in sequence, ammonia-containing wastewater treated by an ammonia stripping and absorbing treatment integrated machine 2, supernatant of a sedimentation section of an acid-base wastewater high-efficiency reaction device 4 and effluent of an adsorption fluorine remover 9 enter the biochemical regulating tank 10, the ammonia-containing wastewater, the supernatant of the sedimentation section of the acid-base wastewater high-efficiency reaction device 4 and the effluent of the adsorption fluorine remover 9 enter the biochemical regulating tank 10, the ammonia-containing wastewater, the supernatant of the sedimentation section and the effluent enter the first-stage AO biochemical reaction tank 11 through a lifting pump after being homogenized and equalized in the biochemical regulating tank 10, the first-stage AO biochemical reaction tank 11 comprises an A section and an O section, the comprehensive wastewater firstly enters the A section of the first-stage AO biochemical reaction tank 11, is mixed with wastewater flowing back to the O section of the first-stage AO biochemical reaction tank 11 to generate denitrification reaction, then flows into, the rest part of the wastewater enters a second-stage AO biochemical reaction tank 12, the second-stage AO biochemical reaction tank 12 comprises an A section and an O section, the wastewater firstly enters the A section of the second-stage AO biochemical reaction tank 12, is mixed with the wastewater reflowing from the O section of the second-stage AO biochemical reaction tank 12 to carry out denitrification reaction, and then flows into the O section of the second-stage AO biochemical reaction tank 12 to carry out nitrification reaction, the wastewater part in the O section of the second-stage AO biochemical reaction tank 12 is lifted and reflows to the A section of the second-stage AO biochemical reaction tank 12 through a second-stage reflux pump, the rest part of the wastewater enters a secondary sedimentation tank 13 to carry out mud-water separation, the supernatant in the secondary sedimentation tank 13 enters a clean water tank 14, the supernatant in the clean water tank 14 is discharged into an environmental water body or used for road washing, the water-containing sludge reflows to the first-stage AO biochemical reaction tank 11 to carry out secondary treatment, the rest of the sludge is discharged into a sludge collection tank 21, and the denitrification carbon source is added into the And combined fillers are arranged in the section A of the first-stage AO biochemical reaction tank 11 and the section A of the second-stage AO biochemical reaction tank 12, so that the two-stage denitrification effect is ensured, nitrate nitrogen in wastewater can be removed to the maximum extent, and the total nitrogen of treated wastewater is ensured to reach the standard.
As shown in fig. 1, the membrane advanced treatment system comprises a sand-carbon combined filter 15, a micro-filter 16, an ultrafiltration processor 17, a reverse osmosis device 18, a recycling water tank 19 and a metering discharge tank 20, wherein the outlet water in a clean water tank 14 is lifted by a clean water lift pump to enter the sand-carbon combined filter 15 to remove suspended matters and partial organic matters in the waste water, the water outlet of the sand-carbon combined filter 15 is connected with the micro-filter 16, the waste water enters the micro-filter 16 to further remove suspended matters, the outlet water of the micro-filter 16 is lifted by a micro-filtration lift pump to enter the ultrafiltration processor 17 for further filtration to meet the inlet water quality requirement of the reverse osmosis device 18, the outlet water of the ultrafiltration processor 17 is pressurized by a high-pressure pump to enter the reverse osmosis device 18, the fresh water outlet of the reverse osmosis device 18 is connected with the recycling water tank 19, the pure water in the recycling water tank 19 is used for production, the concentrated water outlet of the, the concentrated water of the reverse osmosis device 18 can reach the indirect discharge limit value specified by the third table of the discharge standard of the battery industrial pollutants (GB 30484-2013), and the discharge water of the metering discharge tank 20 is discharged into a sewage treatment plant of an industrial park for subsequent treatment.
As shown in fig. 1, the sludge collected in the sludge collection tank 21 is pumped into the chamber filter press 22 by the sludge lift pump, the dry sludge after filter pressing by the chamber filter press 22 is transported to the outside, and the filter pressing water flows back to the acid-base wastewater adjusting tank for secondary treatment.
As shown in fig. 1, the system further comprises a domestic sewage collecting tank, and the effluent of the domestic sewage collecting tank is lifted by a sewage lifting pump to enter a biochemical regulating tank 10. The domestic sewage is mixed with the comprehensive wastewater in the biochemical regulating tank 10, the biodegradability of the wastewater is improved, the dosage of a denitrification carbon source is reduced, and the domestic sewage is treated at the same time, so that the domestic sewage is prevented from being discharged randomly and polluting the environment.
Claims (5)
1. The utility model provides a photovoltaic cell waste water treatment process system which characterized in that: the system comprises a materialized pretreatment system and a biochemical treatment system, wherein the materialized pretreatment system comprises a concentrated ammonia wastewater materialized pretreatment subsystem, an acid-base wastewater materialized pretreatment subsystem and a fluorine-containing wastewater materialized pretreatment subsystem;
The system comprises a concentrated ammonia wastewater physicochemical pretreatment subsystem and a biochemical treatment system, wherein the concentrated ammonia wastewater physicochemical pretreatment subsystem comprises a concentrated ammonia wastewater collection tank and an ammonia stripping and absorbing treatment all-in-one machine;
The system comprises an acid-base wastewater physicochemical pretreatment subsystem and an acid-base wastewater efficient reaction device, wherein acid-base comprehensive wastewater enters the acid-base wastewater regulation tank to be regulated in water quality and water quantity and then is lifted by an acid-base wastewater lifting pump to enter the acid-base wastewater efficient reaction device, effluent of the acid-base wastewater efficient reaction device enters a biochemical treatment system, and sludge precipitated by the acid-base wastewater efficient reaction device is discharged into a sludge collection tank;
The physicochemical pretreatment subsystem of the fluorine-containing wastewater comprises a fluorine-containing wastewater adjusting tank, a primary fluorine-removing coagulating sedimentation combined tank, a secondary fluorine-removing coagulating sedimentation combined tank, a tertiary fluorine-removing coagulating sedimentation combined tank and an adsorption fluorine remover, wherein the fluorine-containing wastewater enters the fluorine-containing wastewater adjusting tank, is homogenized and equalized, and then is lifted by a fluorine-containing wastewater lifting pump to enter the primary fluorine-removing coagulating sedimentation combined tank, a water outlet of the primary fluorine-removing coagulating sedimentation combined tank is connected with the secondary fluorine-removing coagulating sedimentation combined tank, a water outlet of the secondary fluorine-removing coagulating sedimentation combined tank is connected with the tertiary fluorine-removing coagulating sedimentation combined tank, a water outlet of the tertiary fluorine-removing coagulating sedimentation combined tank is connected with the adsorption fluorine remover, and sludge precipitated in the primary fluorine-removing coagulating sedimentation combined tank, the secondary fluorine-removing coagulating sedimentation combined tank and the tertiary fluorine-removing coagulating sedimentation combined tank is discharged into a sludge collection tank;
The biochemical treatment system comprises a biochemical regulating tank, a primary AO biochemical reaction tank, a secondary sedimentation tank and a clean water tank, wherein the effluent of the ammonia stripping and absorbing integrated treatment machine after treatment, the effluent of the acid-base wastewater high-efficiency reaction device and the effluent of the adsorption fluorine removal device all enter the biochemical regulating tank, the effluent is homogenized and equalized in the regulating tank and then enters the primary AO biochemical reaction tank through a lifting pump, a water outlet of the primary AO biochemical reaction tank is connected with the secondary AO biochemical reaction tank, a water outlet of the secondary AO biochemical reaction tank is connected with the secondary sedimentation tank, the supernatant in the secondary sedimentation tank enters the clean water tank, the supernatant in the clean water tank is discharged into an environmental water body or used for road washing, water-containing sludge flows back to the primary AO biochemical reaction tank, and the rest sludge is discharged into a sludge collection tank.
2. The photovoltaic cell production wastewater treatment process system according to claim 1, characterized in that: still including being used for carrying out the embrane method advanced treatment system of further advanced treatment to the supernatant in the clear water pond, embrane method advanced treatment system includes sand carbon combined filter, microstrainer, ultrafiltration treatment machine, reverse osmosis unit, retrieval and utilization water tank and measurement discharge tank, supernatant in the clear water pond promotes through the clear water elevator pump and gets into sand carbon combined filter, the delivery port and the microstrainer of sand carbon combined filter link to each other, the play water of microstrainer promotes through the microfiltration elevator pump and gets into the ultrafiltration treatment machine, the ultrafiltration treatment machine goes out the water and gets into reverse osmosis unit through the high-pressure pump pressurization, reverse osmosis unit's fresh water delivery port links to each other with the retrieval and utilization water tank, reverse osmosis unit's dense water delivery port links to each other with measurement discharge tank, and the play water of measurement discharge tank is discharged into industrial park sewage treatment plant and is carried out subsequent.
3. The photovoltaic cell production wastewater treatment process system according to claim 1, characterized in that: an on-line PH meter is arranged in the acid-base wastewater high-efficiency reaction device.
4. the photovoltaic cell production wastewater treatment process system according to claim 1, characterized in that: and the sludge collected in the sludge collection tank is pumped into a chamber filter press by a sludge lifting pump, the dry sludge subjected to filter pressing by the chamber filter press is transported outwards, and the filter pressing water flows back to the acid-base wastewater adjusting tank.
5. the photovoltaic cell production wastewater treatment process system according to any one of claims 1 to 4, characterized in that: the domestic sewage treatment device is characterized by further comprising a domestic sewage collecting tank, and the effluent of the domestic sewage collecting tank is lifted by a sewage lifting pump to enter the biochemical regulating tank.
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| CN201920472765.3U CN209759259U (en) | 2019-04-08 | 2019-04-08 | Photovoltaic cell production wastewater treatment process system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109879550A (en) * | 2019-04-08 | 2019-06-14 | 重庆港力环保股份有限公司 | Photovoltaic cell produces waste water purification system |
| CN114835335A (en) * | 2022-03-22 | 2022-08-02 | 西安隆基乐叶光伏科技有限公司 | System and method for removing fluorine and controlling calcium of wastewater containing nitrogen and fluorine in battery process |
-
2019
- 2019-04-08 CN CN201920472765.3U patent/CN209759259U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109879550A (en) * | 2019-04-08 | 2019-06-14 | 重庆港力环保股份有限公司 | Photovoltaic cell produces waste water purification system |
| CN109879550B (en) * | 2019-04-08 | 2023-11-21 | 重庆港力环保股份有限公司 | Photovoltaic cell production wastewater purification system |
| CN114835335A (en) * | 2022-03-22 | 2022-08-02 | 西安隆基乐叶光伏科技有限公司 | System and method for removing fluorine and controlling calcium of wastewater containing nitrogen and fluorine in battery process |
| CN114835335B (en) * | 2022-03-22 | 2024-01-19 | 西安隆基乐叶光伏科技有限公司 | System and method for removing fluorine and controlling calcium from nitrogen-containing fluorine-containing wastewater in battery technology |
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