CN113045118A - Industrial wastewater circulating treatment system - Google Patents
Industrial wastewater circulating treatment system Download PDFInfo
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- CN113045118A CN113045118A CN202110284625.5A CN202110284625A CN113045118A CN 113045118 A CN113045118 A CN 113045118A CN 202110284625 A CN202110284625 A CN 202110284625A CN 113045118 A CN113045118 A CN 113045118A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46152—Electrodes characterised by the shape or form
- C02F2001/46171—Cylindrical or tubular shaped
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses an industrial wastewater circulating treatment system, which comprises a water circulating module, a primary treatment module and a secondary treatment module, wherein the water circulating module comprises: the multi-stage AO sewage treatment device comprises a multi-stage AO sewage treatment cylinder and a cooling tower, wherein the multi-stage AO sewage treatment cylinder comprises an anaerobic tank, an anoxic tank and an aerobic tank, a powder adding tank is arranged at a water inlet end of the AO sewage treatment cylinder, the powder adding tank is used for adding a scale and corrosion inhibitor and a corrosion prefilming agent into industrial wastewater entering the multi-stage AO sewage treatment cylinder, and the cooling tower is used for enabling the wastewater to fully exchange heat with air and enabling oxygen in the air to fully enter the wastewater. Compared with the prior art, the industrial wastewater circulating treatment system provided by the invention has the advantages that the scale and corrosion inhibitor is added, the heavy metal is complexed or chelated and attached to the inner walls of the pipeline and the heat exchanger pipe, the heavy metal does not corrode the pipeline and the inner wall of the heat exchanger pipe, and the subsequently generated solid waste does not contain the heavy metal.
Description
Technical Field
The invention belongs to the field of industrial wastewater treatment, and particularly relates to an industrial wastewater circulating treatment system.
Background
The industrial wastewater comprises production wastewater, production sewage and cooling water, and refers to wastewater and waste liquid generated in the industrial production process, wherein the wastewater and the waste liquid contain industrial production materials, intermediate products, byproducts and pollutants generated in the production process, which are lost along with water. The industrial wastewater has various types and complex components. For example, the waste water from electrolytic salt industry contains mercury, the waste water from heavy metal smelting industry contains various metals such as lead and cadmium, the waste water from electroplating industry contains various heavy metals such as cyanide and chromium, the waste water from petroleum refining industry contains phenol, and the waste water from pesticide manufacturing industry contains various pesticides. Because industrial wastewater contains various toxic substances and pollutes the environment, the environment is harmful to human health, so that the industrial wastewater is developed to be comprehensively utilized and turn the harmful into the beneficial, and can be discharged after being treated by adopting corresponding purification measures according to the components and the concentration of pollutants in the wastewater.
At present, most of chemical production uses circulating water, raw water is simply treated and then used as circulating water for supplement, and calcium ions, magnesium ions and compounds thereof in water often generate scale on a heating surface due to the rising of the temperature of water and the concentration of water during the operation of a boiler and an air conditioning system heat exchanger. The thickness of scale formation is directly and closely related to energy consumption, the thicker the thickness of scale formation, the greater the energy waste, the greater the scale formation, the under-scale corrosion to a heating surface is increased, and the service life of the whole circulating water system is shortened, so that an industrial wastewater circulating treatment system is provided
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an industrial wastewater recycling treatment system.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an industrial waste water circulation processing system, includes hydrologic cycle module, primary treatment module and secondary treatment module, the hydrologic cycle module includes: the multi-stage AO sewage treatment device comprises a multi-stage AO sewage treatment cylinder and a cooling tower, wherein the multi-stage AO sewage treatment cylinder comprises an anaerobic tank, an anoxic tank and an aerobic tank, a powder adding tank is arranged at the water inlet end of the AO sewage treatment cylinder and is used for adding a scale and corrosion inhibitor and a corrosion prefilming agent into industrial wastewater entering the multi-stage AO sewage treatment cylinder, and the cooling tower is used for enabling the wastewater to fully exchange heat with air and enabling oxygen in the air to fully enter the wastewater so as to degrade COD in the wastewater;
the primary processing module comprises: the water circulation module comprises a primary sedimentation tank, an adjusting tank, an anaerobic hydrolysis acidification tank and a biological contact oxidation tank, wherein the water inlet end of the primary sedimentation tank is communicated with the water outlet end of the water circulation module, the water inlet end of the adjusting tank is communicated with the water outlet end of the primary sedimentation tank, the water inlet end of the anaerobic hydrolysis acidification tank is communicated with the water outlet end of the adjusting tank, the water inlet end of the biological contact oxidation tank is communicated with the water outlet end of the anaerobic hydrolysis acidification tank, and the water outlet end of the biological contact oxidation tank is communicated with the water inlet end of the secondary treatment module;
the secondary processing module includes: two heavy ponds, transition pond, filter tank, desalination pond and ultrafiltration demineralizer, two heavy pond intake end communicate in the play water end of biological contact oxidation pond, the end of intaking in the transition pond and the play water end intercommunication in two heavy ponds, the end of intaking in filter tank and the play water end intercommunication in transition pond, the end of intaking in the desalination pond and the play water end intercommunication in filter tank, and the desalination pond goes out the water end and provides the purified water for the hydrologic cycle module through the wet return, ultrafiltration demineralizer sets up on the outlet pipe in desalination pond.
Preferably, the hydrologic cycle module still includes circulation tank and heat exchanger, set up to microorganism circulation tank in the circulation tank, the COD degradation is further degraded through its inside microorganism in circulation tank, the heat exchanger is used for letting waste water pyrolysis and catalysis, and waste water heaies up in the heat exchanger is inside, makes the dissolved oxygen content in the waste water reduce, makes oxygen and organic matter in the waste water react with the poisonous and harmful substance in the waste water.
Preferably, the ultrafiltration demineralizer comprises a central tube serving as one electrode of the electrode and a shell concentric with the central tube, the shell is provided with the other electrode of the electrode, anion-cation exchange membranes which are alternately arranged are arranged between the central tube and the shell, the central tube is used as a center to make the anion-cation exchange membranes in the layers of the anion-cation exchange membranes, the net partition plates in the dense-dilute water channels and the anion-cation exchange resin in the freshwater channels into cylinders, the freshwater channels are divided into an inner flowing water channel unit and an outer flowing water channel unit, one ends of the inner flowing water channel unit and the outer flowing water channel unit of the freshwater channels are parallel and level, the other ends of the inner flowing water channel unit and the outer flowing water channel unit are in a.
Preferably, the water circulation module is provided with a mixing module in front, the mixing module is used for mixing different types of industrial wastewater, a water outlet of the mixing module is communicated with the water circulation module through a connecting pipe, and the powder adding tank is arranged on the connecting pipe.
Preferably, the mixing module specifically sets up to cylinder sewage blender, the main shaft is installed to the mixing drum internal rotation of cylinder sewage blender, be equipped with the flight on the main shaft, rotate between the bottom of main shaft and the motor and be connected, the top of mixing drum is sealed and is equipped with sewage and adds the mouth, be equipped with the sewage discharge port on the lateral wall of mixing drum.
Preferably, salt-tolerant strains are added into the anaerobic hydrolysis acidification tank and the biological contact oxidation tank, and the salt-tolerant strains are set as extreme salt-tolerant strains.
Preferably, the filtering tank comprises a sand filtering tank and a carbon filtering tank, the sand filtering tank is communicated with the carbon filtering tank, a water inlet of the filtering tank is arranged on the sand filtering tank, a water inlet of the filtering tank is arranged on the carbon filtering tank, and when wastewater flows into the filtering tank, the wastewater sequentially passes through the sand filtering tank and the carbon filtering tank to be filtered.
Preferably, the sand filter tank is provided with a pressure type sand filter tank which takes natural quartz sand, manganese sand and anthracite powder as filter materials, the particle size of the quartz sand adopted by the sand filter tank is 0.5-1.2mm, and the uneven coefficient of the quartz sand is 2.
The invention has the technical effects and advantages that: compared with the prior art, the industrial wastewater circulating treatment system provided by the invention has the advantages that the scale and corrosion inhibitor is added, the heavy metal is complexed or chelated and attached to the inner walls of the pipeline and the heat exchanger pipe, the heavy metal does not corrode the pipeline and the inner wall of the heat exchanger pipe, and the subsequently generated solid waste does not contain the heavy metal.
Drawings
FIG. 1 is a process flow diagram of the industrial wastewater recycling treatment system of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an industrial wastewater circulating treatment system as shown in figure 1, which comprises a water circulating module, a primary treatment module and a secondary treatment module, wherein the water circulating module comprises: the multi-stage AO sewage treatment cylinder comprises an anaerobic tank, an anoxic tank and an aerobic tank, wherein a powder adding tank is arranged at the water inlet end of the AO sewage treatment cylinder and is used for adding a scale and corrosion inhibitor and a corrosion prefilming agent into industrial wastewater entering the multi-stage AO sewage treatment cylinder, the cooling tower is used for enabling the wastewater to fully exchange heat with air and enabling oxygen in the air to fully enter the wastewater to degrade COD in the wastewater, the water circulation module further comprises a circulation water tank and a heat exchanger, the circulation water tank is provided with a microorganism circulation water tank, the circulation water tank is used for further degrading the COD through microorganisms inside the circulation water tank, the heat exchanger is used for pyrolyzing and catalyzing the wastewater, the temperature of the wastewater is raised inside the heat exchanger to reduce the content of dissolved oxygen in the wastewater, and the oxygen and organic matters in the wastewater are enabled to react with toxic and harmful substances in the wastewater, the water circulation module is provided with a mixing module in front, the mixing module is used for mixing different types of industrial wastewater, a water outlet of the mixing module is communicated with the water circulation module through a connecting pipe, a powder adding tank is arranged on the connecting pipe, the mixing module is specifically arranged into a cylinder type sewage mixer, a main shaft is rotatably mounted in a mixing cylinder of the cylinder type sewage mixer, a spiral sheet is arranged on the main shaft, the bottom end of the main shaft is rotatably connected with a motor, the top end of the mixing cylinder is sealed and provided with a sewage adding port, and a sewage discharging port is formed in the side wall of the mixing cylinder;
the primary processing module comprises: the water inlet end of the primary sedimentation tank is communicated with the water outlet end of the water circulation module, the water inlet end of the adjusting tank is communicated with the water outlet end of the primary sedimentation tank, the water inlet end of the anaerobic hydrolysis acidification tank is communicated with the water outlet end of the adjusting tank, the water inlet end of the biological contact oxidation tank is communicated with the water outlet end of the anaerobic hydrolysis acidification tank, the water outlet end of the biological contact oxidation tank is communicated with the water inlet end of the secondary treatment module, salt-tolerant strains are added into the anaerobic hydrolysis acidification tank and the biological contact oxidation tank, and the salt-tolerant strains are set as extreme salt-tolerant strains;
the secondary processing module comprises: the water inlet end of the secondary sedimentation tank is communicated with the water outlet end of the biological contact oxidation tank, the water inlet end of the transition water tank is communicated with the water outlet end of the secondary sedimentation tank, the water inlet end of the filter tank is communicated with the water outlet end of the transition water tank, the water inlet end of the desalination tank is communicated with the water outlet end of the filter tank, the water outlet end of the desalination tank provides purified water for the water circulation module through a water return pipe, the ultrafiltration desalination device is arranged on the water outlet pipe of the desalination tank, the ultrafiltration desalination device comprises a central pipe serving as one pole of an electrode and a shell concentric with the central pipe, the other pole of the electrode is arranged on the shell, anion and cation exchange membranes which are alternately arranged are arranged between the central pipe and the shell, and the layers of anion and cation exchange membranes in the cation exchange membranes, the mesh plates in the concentrated and dilute water channels and the cation exchange resins in the fresh water channels are made into a cylinder by taking the central pipe as the center, the fresh water channel is divided into an inner water channel unit and an outer water channel unit, one end of the inner water channel unit and one end of the outer water channel unit of the fresh water channel are parallel and level, the other end of the inner water channel unit are in a step shape, the water outlet ends of the inner water channel unit and the outer water channel unit are communicated with the water return pipe, the filter tank comprises a sand filter tank and a carbon filter tank, the sand filter tank is communicated with the carbon filter tank, the water inlet of the filter tank is arranged on the sand filter tank, the water inlet of the filter tank is arranged on the carbon filter tank, when wastewater flows into the filter tank, the wastewater is filtered through the sand filter tank and the carbon filter tank in sequence, the sand filter tank is provided with a pressure type sand filter tank which takes natural quartz sand, manganese sand and anthracite powder as filter materials, the particle size of quartz sand adopted by the sand filter tank is.
The invention relates to a waste water purification process flow of an industrial waste water circulating treatment system, which comprises the following steps:
mixing various kinds of sewage produced in production in a factory and an enterprise, then entering a circulating cooling system, adding a multifunctional scale and corrosion inhibitor and a reinforced corrosion inhibition prefilming agent, wherein the corrosion inhibitor and the prefilming agent can complex heavy metal ions in the sewage, and the heavy metal ions are attached to the inner walls of a pipeline and a heat exchanger after being complexed, so that the pipeline and the heat exchanger are not corroded, and the corrosion inhibitor and the prefilming agent can also remove and prevent scale, so that the scale is not formed; evaporating and concentrating the sewage in a circulating cooling system, wherein the salt content of the sewage reaches 2-3 ten thousand mg/L, the COD content of the sewage reaches 2000-3000mg/L, pumping the sewage into a primary sedimentation tank, precipitating the sewage, then feeding the sewage into an adjusting tank, adding sodium hydroxide or acid into the adjusting tank to adjust the pH value to a proper value, pumping the sewage into an anaerobic hydrolysis acidification tank and a biological contact oxidation tank, adding specially domesticated salt-tolerant strains into the two tanks, removing pollutants such as the salt content, the COD and ammonia nitrogen, then discharging the water into the sedimentation tank, precipitating the discharged water in the sedimentation tank, and discharging the water into a transition water tank for later use; pumping water from the transition water tank by a lift pump, conveying the water to a filter tank and a desalting tank, conveying the water to an ultrafiltration desalter, recycling fresh water effluent of the ultrafiltration desalter to a circulating water system or other production processes, further concentrating the concentrated water effluent by electrodialysis or crystallizing solid particles by an evaporator, and selling or handing the solid particles to a qualified unit for treatment.
In summary, the following steps: compared with the prior art, the industrial wastewater circulating treatment system provided by the invention has the advantages that the scale and corrosion inhibitor is added, the heavy metal is complexed or chelated and attached to the inner walls of the pipeline and the heat exchanger pipe, the heavy metal does not corrode the pipeline and the inner wall of the heat exchanger pipe, and the subsequently generated solid waste does not contain the heavy metal.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides an industrial waste water circulation processing system, includes hydrologic cycle module, primary treatment module and secondary treatment module, its characterized in that:
the water circulation module includes: the multi-stage AO sewage treatment device comprises a multi-stage AO sewage treatment cylinder and a cooling tower, wherein the multi-stage AO sewage treatment cylinder comprises an anaerobic tank, an anoxic tank and an aerobic tank, a powder adding tank is arranged at the water inlet end of the AO sewage treatment cylinder and is used for adding a scale and corrosion inhibitor and a corrosion prefilming agent into industrial wastewater entering the multi-stage AO sewage treatment cylinder, and the cooling tower is used for enabling the wastewater to fully exchange heat with air and enabling oxygen in the air to fully enter the wastewater so as to degrade COD in the wastewater;
the primary processing module comprises: the water circulation module comprises a primary sedimentation tank, an adjusting tank, an anaerobic hydrolysis acidification tank and a biological contact oxidation tank, wherein the water inlet end of the primary sedimentation tank is communicated with the water outlet end of the water circulation module, the water inlet end of the adjusting tank is communicated with the water outlet end of the primary sedimentation tank, the water inlet end of the anaerobic hydrolysis acidification tank is communicated with the water outlet end of the adjusting tank, the water inlet end of the biological contact oxidation tank is communicated with the water outlet end of the anaerobic hydrolysis acidification tank, and the water outlet end of the biological contact oxidation tank is communicated with the water inlet end of the secondary treatment module;
the secondary processing module includes: two heavy ponds, transition pond, filter tank, desalination pond and ultrafiltration demineralizer, two heavy pond intake end communicate in the play water end of biological contact oxidation pond, the end of intaking in the transition pond and the play water end intercommunication in two heavy ponds, the end of intaking in filter tank and the play water end intercommunication in transition pond, the end of intaking in the desalination pond and the play water end intercommunication in filter tank, and the desalination pond goes out the water end and provides the purified water for the hydrologic cycle module through the wet return, ultrafiltration demineralizer sets up on the outlet pipe in desalination pond.
2. The industrial wastewater recycling treatment system according to claim 1, wherein: the water circulation module still includes circulation tank and heat exchanger, set up to the microorganism circulation tank in the circulation tank, the COD degradation is further degraded through its inside microorganism in circulation tank, the heat exchanger is used for letting waste water pyrolysis and catalysis, and waste water heaies up in the heat exchanger is inside, makes the dissolved oxygen content in the waste water reduce, makes oxygen and organic matter in the waste water react with the poisonous and harmful substance in the waste water.
3. The industrial wastewater recycling treatment system according to claim 1, wherein: the ultrafiltration demineralizer comprises a central tube serving as one electrode of an electrode and a shell concentric with the central tube, the shell is provided with the other electrode of the electrode, anion-cation exchange membranes which are alternately arranged are arranged between the central tube and the shell, the central tube is used as the center to manufacture the anion-cation exchange membranes of a plurality of layers, net partition plates in the dense-dilute water channels and anion-cation exchange resin in the fresh-water channels into cylinders, the fresh-water channels are divided into an inner running water channel unit and an outer running water channel unit, one ends of the inner running water channel unit and the outer running water channel unit of the fresh-water channels are parallel and level, the other ends of the inner running water channel unit and the outer running water channel unit are in a.
4. The industrial wastewater recycling treatment system according to claim 1, wherein: the water circulation module is provided with a mixing module in front, the mixing module is used for mixing different types of industrial wastewater, a water outlet of the mixing module is communicated with the water circulation module through a connecting pipe, and the powder adding tank is arranged on the connecting pipe.
5. The industrial wastewater recycling treatment system according to claim 4, wherein: the mixing module specifically sets up to cylinder sewage blender, the main shaft is installed to the mixing drum internal rotation of cylinder sewage blender, be equipped with the flight on the main shaft, rotate between the bottom of main shaft and the motor and be connected, the top of mixing drum is sealed and is equipped with sewage and adds the mouth, be equipped with the sewage discharge port on the lateral wall of mixing drum.
6. The industrial wastewater recycling treatment system according to claim 1, wherein: salt-tolerant strains are added into the anaerobic hydrolysis acidification tank and the biological contact oxidation tank, and the salt-tolerant strains are set as extreme salt-tolerant strains.
7. The industrial wastewater recycling treatment system according to claim 1, wherein: the filter tank comprises a sand filter tank and a carbon filter tank, the sand filter tank is communicated with the carbon filter tank, a water inlet of the filter tank is arranged on the sand filter tank, a water inlet of the filter tank is arranged on the carbon filter tank, and when wastewater flows into the filter tank, the wastewater sequentially passes through the sand filter tank and the carbon filter tank to be filtered.
8. The industrial wastewater recycling treatment system according to claim 7, wherein: the sand filter tank is provided with a pressure type sand filter tank which takes natural quartz sand, manganese sand and anthracite powder as filter materials, the particle size of the quartz sand adopted by the sand filter tank is 0.5-1.2mm, and the uneven coefficient of the quartz sand is 2.
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| CN202110284625.5A CN113045118A (en) | 2021-03-17 | 2021-03-17 | Industrial wastewater circulating treatment system |
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| CN202110284625.5A CN113045118A (en) | 2021-03-17 | 2021-03-17 | Industrial wastewater circulating treatment system |
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Citations (6)
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|---|---|---|---|---|
| CN1769196A (en) * | 2004-11-02 | 2006-05-10 | 浙江欧美环境工程有限公司 | Turning type electric desalinization device |
| CN202224104U (en) * | 2011-07-20 | 2012-05-23 | 安徽明珠颜料科技有限公司 | Sewage mixer |
| WO2013010388A1 (en) * | 2011-07-21 | 2013-01-24 | 波鹰(厦门)科技有限公司 | Apparatus for treating landfill leachate and treatment method therefor |
| CN103408201A (en) * | 2013-08-30 | 2013-11-27 | 河南新大新材料股份有限公司 | Treatment method of industrial wastewater in silicon wafer mortar recovery |
| CN105585213A (en) * | 2015-12-31 | 2016-05-18 | 邯郸市奥博水处理有限公司 | Low-cost resource utilization method of industrial wastewater |
| CN207031193U (en) * | 2017-07-06 | 2018-02-23 | 河南绿沐环保技术有限公司 | A kind of system for handling chlorine industry PVC polymeric mother liquid wastewater zero discharges |
-
2021
- 2021-03-17 CN CN202110284625.5A patent/CN113045118A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1769196A (en) * | 2004-11-02 | 2006-05-10 | 浙江欧美环境工程有限公司 | Turning type electric desalinization device |
| CN202224104U (en) * | 2011-07-20 | 2012-05-23 | 安徽明珠颜料科技有限公司 | Sewage mixer |
| WO2013010388A1 (en) * | 2011-07-21 | 2013-01-24 | 波鹰(厦门)科技有限公司 | Apparatus for treating landfill leachate and treatment method therefor |
| CN103408201A (en) * | 2013-08-30 | 2013-11-27 | 河南新大新材料股份有限公司 | Treatment method of industrial wastewater in silicon wafer mortar recovery |
| CN105585213A (en) * | 2015-12-31 | 2016-05-18 | 邯郸市奥博水处理有限公司 | Low-cost resource utilization method of industrial wastewater |
| CN207031193U (en) * | 2017-07-06 | 2018-02-23 | 河南绿沐环保技术有限公司 | A kind of system for handling chlorine industry PVC polymeric mother liquid wastewater zero discharges |
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Application publication date: 20210629 |