CN108706839B - High-salt comprehensive wastewater treatment system for chemical industry park - Google Patents
High-salt comprehensive wastewater treatment system for chemical industry park Download PDFInfo
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- CN108706839B CN108706839B CN201810856490.3A CN201810856490A CN108706839B CN 108706839 B CN108706839 B CN 108706839B CN 201810856490 A CN201810856490 A CN 201810856490A CN 108706839 B CN108706839 B CN 108706839B
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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 12
- 239000000126 substance Substances 0.000 title claims abstract description 11
- 239000002351 wastewater Substances 0.000 claims abstract description 135
- 238000009292 forward osmosis Methods 0.000 claims abstract description 54
- 238000003860 storage Methods 0.000 claims abstract description 45
- 238000001704 evaporation Methods 0.000 claims abstract description 31
- 230000008020 evaporation Effects 0.000 claims abstract description 30
- 238000004062 sedimentation Methods 0.000 claims abstract description 21
- 230000001112 coagulating effect Effects 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 239000012528 membrane Substances 0.000 claims abstract description 11
- 238000011033 desalting Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 239000010815 organic waste Substances 0.000 claims description 26
- 238000001223 reverse osmosis Methods 0.000 claims description 20
- 230000001105 regulatory effect Effects 0.000 claims description 19
- 230000003647 oxidation Effects 0.000 claims description 13
- 238000007254 oxidation reaction Methods 0.000 claims description 13
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 12
- 238000005868 electrolysis reaction Methods 0.000 claims description 12
- 238000000108 ultra-filtration Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 9
- 230000002378 acidificating effect Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 5
- 239000010865 sewage Substances 0.000 abstract description 8
- 238000000909 electrodialysis Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000010790 dilution Methods 0.000 abstract description 5
- 239000012895 dilution Substances 0.000 abstract description 5
- 239000005416 organic matter Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000002253 acid Substances 0.000 description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000002071 nanotube Substances 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 208000034699 Vitreous floaters Diseases 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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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
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/445—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by forward osmosis
-
- 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
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F3/02—Aerobic processes
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1263—Sequencing batch reactors [SBR]
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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
- C02F3/28—Anaerobic digestion processes
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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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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Environmental & Geological Engineering (AREA)
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Abstract
The invention relates to the technical field of wastewater treatment, in particular to a high-salt comprehensive wastewater treatment system for a chemical industry park, which comprises a classified storage unit, a forward osmosis treatment unit, a pretreatment unit, a coagulating sedimentation unit, an adjusting tank unit, a medium-temperature anaerobic unit, an aerobic reaction unit and a desalting unit; the treatment system of the invention improves the treatment rate and biochemistry of a wastewater materialization area, utilizes the energy of high-salt wastewater to achieve the double purposes of dilution and concentration, solves the problems of reduced evaporation efficiency and front electrodialysis membrane pollution caused by organic matter hardening during the direct evaporation of the front-stage high-salt high-COD wastewater, realizes the secondary utilization of the waste membrane of a power plant, greatly reduces the operation cost of a sewage plant, and improves the benefit of the sewage plant.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a high-salt comprehensive wastewater treatment system for a chemical industry park.
Background
Most enterprises in a chemical industry park are small in general scale, small in water discharge amount and large in generated wastewater, and most of generated wastewater is high-salt high-COD wastewater, and the enterprises are unwilling to put a large amount of cost into pollution treatment due to large wastewater treatment difficulty and lack of professional operation talents, so that most of enterprises bring the wastewater into a park sewage plant.
Although the problem of industrial wastewater pollution is solved to a certain extent by concentrating the wastewater from the chemical industry park into a sewage plant for treatment, the following problems exist in the actual treatment process: at present, biochemical effluent desalted water is adopted for diluting front-stage water distribution, so that firstly, the biochemical effluent has low salt content, and the direct electrodialysis concentration and then evaporation cost are high; the water after secondary electro-dialysis is reused for front-end water distribution, so that the electrodialysis burden is further increased, and the direct front-end evaporation of the high-salt wastewater is easy to cause organic matter hardening, so that a series of problems of reduced evaporation efficiency, high cost, easy pollution of the electrodialysis membrane at the front section of the high-salt wastewater and the like are caused. Thus, in view of the above problems, it is necessary to establish a system suitable for high-salt integrated wastewater treatment.
Disclosure of Invention
The invention aims at: aiming at the defects existing in the prior art, the chemical industry park high-salt wastewater comprehensive treatment system is provided, the treatment system realizes the treatment of different types of wastewater, improves the treatment rate and biochemistry of a wastewater materialization area, utilizes the energy of the high-salt wastewater, achieves the dual purposes of dilution and concentration, simultaneously solves the problem of organic matter hardening during the direct evaporation of the front-stage high-salt high-COD wastewater, leads to the reduction of evaporation efficiency, solves the problem of front-end electrodialysis membrane pollution, realizes the secondary utilization of waste membranes of a power plant, greatly reduces the operation cost of a sewage plant, and improves the benefit of the sewage plant.
In order to achieve the above object, the technical scheme of the present invention is as follows:
a high-salt comprehensive wastewater treatment system for a chemical industry park comprises a classified storage unit, a forward osmosis treatment unit, a pretreatment unit, a coagulating sedimentation unit, an adjusting tank unit, a medium-temperature anaerobic unit, an aerobic reaction unit and a desalting unit; the classifying and storing unit is a plurality of different types of wastewater storing tanks which are not communicated with each other, and the desalting unit comprises an ultrafiltration device, a reverse osmosis device and an evaporation device; the waste water outlets of the waste water storage tanks are respectively communicated with the forward osmosis treatment unit, the waste water outlets of the forward osmosis treatment unit are respectively communicated with the coagulating sedimentation unit, the waste water outlets of the coagulating sedimentation unit are respectively communicated with the regulating tank, the waste water outlets of the regulating tank are communicated with the medium-temperature anaerobic unit, the waste water outlets of the medium-temperature anaerobic unit are communicated with the aerobic reaction unit, the waste water outlets of the aerobic reaction unit are communicated with the ultrafiltration device, the waste water outlets of the ultrafiltration device are respectively communicated with the driving liquid inlet of the forward osmosis treatment unit and the reverse osmosis device through pipelines, the waste water outlets of the reverse osmosis device are communicated with the evaporation device, and the waste water outlets of the evaporation device are communicated with the regulating tank.
As an improved technical scheme, the plurality of wastewater storages comprise an acidic organic wastewater storage tank, an alkaline organic wastewater storage tank and a biochemical organic wastewater storage tank.
As an improved technical scheme, the pretreatment unit comprises a micro-electrolysis reaction tank, an ozone oxidation tower and an SBR tank, wherein a waste water outlet of the acid organic waste water storage tank is communicated with a forward osmosis treatment unit, and a waste water outlet of the forward osmosis treatment unit is communicated with the micro-electrolysis reaction tank; the waste water outlet of the alkaline organic waste water storage tank is communicated with the forward osmosis treatment unit, and the waste water outlet of the forward osmosis treatment unit is communicated with the ozone oxidation tower; the waste water outlet of the easily-biochemical organic waste water storage tank is communicated with the forward osmosis treatment unit, and the waste water outlet of the forward osmosis treatment unit is communicated with the SBR tank.
As an improved technical scheme, the forward osmosis treatment unit comprises a forward osmosis treatment device and pipelines which are respectively communicated with the classified storage unit and the pretreatment unit.
As an improved technical scheme, a driving liquid outlet of the forward osmosis treatment device is respectively communicated with a reverse osmosis device and an evaporation system through pipelines, and the evaporation system is a triple effect evaporator or an MVR evaporator.
As an improved technical scheme, the coagulating sedimentation unit comprises a coagulating sedimentation tank and a pipeline communicated with the pretreatment unit and the regulating tank unit.
As an improved technical scheme, the medium-temperature anaerobic unit comprises a medium-temperature ABR reactor and a pipeline communicated with the regulating tank unit and the aerobic reaction unit.
As an improved technical scheme, the aerobic reaction unit comprises three aerobic tanks which are connected in series.
Compared with the prior art, the invention has the following advantages:
when the wastewater is treated, the wastewater in the wastewater storage tanks of different types respectively enters the forward osmosis treatment device along the respective wastewater conveying pipelines, the diluted wastewater of different types respectively enters the respective pretreatment units, so that the toxicity of the wastewater can be reduced, the influence of pollutants in the wastewater on subsequent biochemistry is reduced, the wastewater treated by the pretreatment units respectively enters the coagulating sedimentation tank, a large amount of floaters can be removed, the wastewater respectively enters the regulating tank according to a certain proportion, the wastewater enters the medium-temperature ABR reactor after the biochemical environment is stabilized, and most of organic matters are converted into CH by utilizing the bioconversion effect of anaerobic microorganisms 4 And CO 2 And (3) waiting for gas, entering an aerobic tank, and passing the wastewater treated by the aerobic tank through an ultrafiltration device, wherein one part of wastewater enters a forward osmosis treatment device for stepwise permeation of high-salt wastewater, the other part of wastewater enters a reverse osmosis treatment device, the high-salt wastewater of the reverse osmosis treatment device enters an evaporation device, and the wastewater of the evaporation device flows back to an adjusting tank for dilution of the wastewater. The treatment system realizes the treatment of different types of wastewater, greatly improves the biodegradability, utilizes the energy of high-salt wastewater, achieves the dual purposes of dilution and concentration, simultaneously solves the problems of organic matter hardening during the direct evaporation of the front-stage high-salt high-COD wastewater, and the reduction of evaporation efficiency, front-end electrodialysis membrane pollution, and also realizes the secondary utilization of waste membranes of a power plant, thereby greatly reducing the operation cost of a sewage plant and improving the benefit of the sewage plant.
Since the plurality of wastewater storages include an acidic organic wastewater storage tank, an alkaline organic wastewater storage tank and an easily biochemically applicable organic wastewater storage tank. The waste water discharged by different factories is conveniently classified and stored through the acidic organic waste water, the alkaline organic waste water and the biochemical organic waste water storage pool.
The pretreatment unit comprises a micro-electrolysis reaction tank, an ozone oxidation tower and an SBR tank, wherein a waste water outlet of the acid organic waste water storage tank is communicated with the forward osmosis treatment unit, and a waste water outlet of the forward osmosis treatment unit is communicated with the micro-electrolysis reaction tank; the waste water outlet of the alkaline organic waste water storage pool is communicated with the forward osmosis treatment unit, and the waste water outlet of the forward osmosis treatment unit is communicated with the ozone oxidation tower; the waste water outlet of the biochemical organic waste water storage tank is communicated with the forward osmosis treatment unit, and the waste water outlet of the forward osmosis treatment unit is communicated with the SBR tank. The acidic organic wastewater treated by the forward osmosis treatment device is treated by adopting a micro-electrolysis reaction tank, the alkaline organic wastewater is treated by adopting an ozone oxidation tower, and the easily biochemical organic wastewater is treated by adopting an SBR tank, so that the toxicity of the acidic organic wastewater, the alkaline organic wastewater and the easily biochemical organic wastewater is greatly reduced, the COD concentration of the wastewater is reduced, and the subsequent biochemical treatment is facilitated.
Because the driving liquid outlet of the forward osmosis treatment device is respectively communicated with the reverse osmosis device and the evaporation system through pipelines, the evaporation system is a triple effect evaporator or an MVR evaporator. When the salt concentration from the driving liquid outlet is higher than 10 ten thousand, the concentrated water with lower concentration is directly fed into the evaporation system, and the concentrated water is concentrated to more than 15% by stage through reverse osmosis membrane treatment, the salt content of fresh water is less than 3000, the nano tube below COD200 is discharged, the concentrated water is subjected to triple effect evaporation or MVR desalination, and the solid salt is transported outwards. Realizing the effective treatment of the wastewater.
Because the aerobic reaction unit comprises three aerobic tanks connected in series, the three aerobic tanks connected in series are adopted to decompose the easily degradable organic matters in the wastewater into carbon dioxide and water under the metabolism of aerobic bacteria.
Drawings
FIG. 1 is a schematic diagram of a chemical industrial park high-salinity integrated wastewater treatment system;
wherein, 1-acid organic wastewater storage tank, 2-alkaline organic wastewater storage tank, 3-easy-to-generate organic wastewater storage tank, 4-forward osmosis treatment device, 5-micro-electrolysis reaction tank, 6-ozone oxidation tower, 7-SBR tank, 8-coagulating sedimentation tank, 9-regulating tank, 10-medium temperature ABR reactor, 11-aerobic tank, 12-ultrafiltration device, 13-reverse osmosis device and 14-evaporation device.
Detailed Description
The present invention will be described in further detail in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
A high-salt comprehensive wastewater treatment system in a chemical industry park is shown in figure 1, and comprises a classified storage unit, a forward osmosis treatment unit (forward osmosis treatment device), a pretreatment unit, a coagulating sedimentation unit (coagulating sedimentation tank), a regulating tank unit (regulating tank), a medium-temperature anaerobic unit (medium-temperature ABR reactor), an aerobic reaction unit and a desalting unit; the classifying and storing units are three acid organic wastewater storage tanks 1, alkaline organic wastewater storage tanks 2 and biochemical organic wastewater storage tanks 3 which are not communicated with each other, the pretreatment unit comprises a micro-electrolysis reaction tank 5, an ozone oxidation tower 6 and an SBR tank 7, and the desalting unit comprises an ultrafiltration device, a reverse osmosis device and an evaporation device; the waste water outlet of the acid organic waste water storage tank 1 is communicated with the forward osmosis treatment device 4, and the waste water outlet of the forward osmosis treatment device 4 is communicated with the micro-electrolysis reaction tank 5; the waste water outlet of the alkaline organic waste water storage tank 6 is communicated with the forward osmosis treatment device 4, and the waste water outlet of the forward osmosis treatment device 4 is communicated with the ozone oxidation tower 6; the waste water outlet of the biochemical organic waste water storage tank 3 is communicated with the forward osmosis treatment device 4, the waste water outlet of the forward osmosis treatment device 4 is communicated with the SBR tank 7, the waste water outlets of the micro-electrolysis reaction tank 5, the ozone oxidation tower 6 and the SBR tank 7 are respectively communicated with the coagulating sedimentation tank 8, the waste water outlet of the coagulating sedimentation tank 8 is respectively communicated with the regulating tank 9, the waste water outlet of the regulating tank 9 is communicated with the medium-temperature ABR reactor 10, the waste water outlet of the medium-temperature ABR reactor 10 is communicated with the aerobic reaction unit (three serially connected aerobic tanks 11), the waste water outlet of the aerobic reaction unit is communicated with the ultrafiltration device 12, the waste water outlet of the ultrafiltration device 12 is respectively communicated with the driving liquid inlet of the forward osmosis treatment device 4 and the reverse osmosis device 13 through pipelines, the waste water outlet of the reverse osmosis device 13 is communicated with the evaporation device 14, and the waste water outlet of the evaporation device 14 is communicated with the regulating tank 9.
When the waste water is treated, the acid organic waste water, the alkaline organic waste water and the easily biochemical organic waste water are respectively stored in respective waste water storage tanks, a worker opens a valve of a waste water outlet of the acid organic waste water storage tank, the acid organic waste water enters a forward osmosis treatment device along an acid organic waste water pipeline, and after the acid organic waste water and driving liquid are subjected to gradual osmosis, the acid organic waste water enters a micro-electrolysis reaction tank; the waste water of the alkaline organic waste water storage pool enters a forward osmosis treatment device along an alkaline organic waste water conveying pipeline, and alkaline organic waste water subjected to gradual osmosis enters an ozone oxidation tower; organic wastewater in the biochemical organic wastewater storage tank enters a forward osmosis treatment device along an biochemical organic wastewater pipeline, and enters an SBR tank after being subjected to gradual osmosis; after the acidic organic wastewater in the micro-electrolytic tank is treated by the micro-electrolytic tank, the alkaline organic wastewater in the ozone oxidation tower is treated, the easily biochemical organic wastewater in the SBR tank is respectively subjected to sedimentation in a coagulating sedimentation tank to remove a large amount of floating matters, the easily biochemical organic wastewater respectively enters a regulating tank according to a certain proportion, the well-temperature ABR reactor is further arranged after the biochemical environment is stabilized, the well-temperature ABR reactor is further arranged in an aerobic tank after a period of treatment, the wastewater treated by the aerobic tank is further subjected to an ultrafiltration device, one part of the wastewater enters a forward osmosis treatment device for stepwise permeation of high-salt wastewater, the other part of the wastewater enters a reverse osmosis treatment device, the high-salt wastewater of the reverse osmosis treatment device enters an evaporation device, the wastewater of the evaporation device flows back to the regulating tank for dilution of the wastewater, and the desalted water of the reverse osmosis treatment device enters a nano tube for discharge.
Wherein, the driving liquid outlet of the forward osmosis treatment device is respectively communicated with the reverse osmosis device and the MVR evaporator (or the triple effect evaporator) through pipelines.
The forward osmosis treatment unit comprises a forward osmosis treatment device and pipelines which are respectively communicated with the classified storage unit and the pretreatment unit.
The coagulating sedimentation unit comprises a coagulating sedimentation tank and a pipeline communicated with the pretreatment unit and the regulating tank unit.
The present patent is not limited to the specific embodiments described above, and various modifications made by those skilled in the art from the above concepts are not subject to inventive effort and are within the scope of the present patent.
Claims (1)
1. A chemical industry garden high salt synthesizes wastewater treatment system which characterized in that: comprises a classified storage unit, a forward osmosis treatment unit, a pretreatment unit, a coagulating sedimentation unit, an adjusting tank unit, a medium-temperature anaerobic unit, an aerobic reaction unit and a desalting unit; the classifying and storing unit is a plurality of different types of wastewater storing tanks which are not communicated with each other, and the desalting unit comprises an ultrafiltration device, a reverse osmosis device and an evaporation device; the waste water outlets of the waste water storage tanks are respectively communicated with the forward osmosis treatment unit, the waste water outlets of the forward osmosis treatment unit are respectively communicated with the coagulating sedimentation unit, the waste water outlets of the coagulating sedimentation unit are respectively communicated with the regulating tank, the waste water outlets of the regulating tank are respectively communicated with the medium-temperature anaerobic unit, the waste water outlets of the medium-temperature anaerobic unit are communicated with the aerobic reaction unit, the waste water outlets of the aerobic reaction unit are communicated with the ultrafiltration device, the waste water outlets of the ultrafiltration device are respectively communicated with the driving liquid inlet of the forward osmosis treatment unit and the reverse osmosis membrane device through pipelines, the waste water outlets of the reverse osmosis membrane device are communicated with the evaporation device, and the waste water outlets of the evaporation device are communicated with the regulating tank;
the wastewater storage tanks are respectively an acidic organic wastewater storage tank, an alkaline organic wastewater storage tank and an easily biochemical organic wastewater storage tank;
the pretreatment unit comprises a micro-electrolysis reaction tank, an ozone oxidation tower and an SBR tank, wherein a waste water outlet of the acidic organic waste water storage tank is communicated with the forward osmosis treatment unit, and a waste water outlet of the forward osmosis treatment unit is communicated with the micro-electrolysis reaction tank; the waste water outlet of the alkaline organic waste water storage tank is communicated with the forward osmosis treatment unit, and the waste water outlet of the forward osmosis treatment unit is communicated with the ozone oxidation tower; the waste water outlet of the easily-biochemical organic waste water storage tank is communicated with the forward osmosis treatment unit, and the waste water outlet of the forward osmosis treatment unit is communicated with the SBR tank;
the forward osmosis treatment unit comprises a forward osmosis treatment device and pipelines which are respectively communicated with the classified storage unit and the pretreatment unit; the driving liquid outlet of the forward osmosis treatment device is respectively communicated with a reverse osmosis membrane device and an evaporation system through pipelines, and the evaporation system is a triple effect evaporator or an MVR evaporator;
the coagulating sedimentation unit comprises a coagulating sedimentation tank and a pipeline communicated with the pretreatment unit and the regulating tank unit;
the medium-temperature anaerobic unit comprises a medium-temperature ABR reactor and a pipeline communicated with the regulating tank unit and the aerobic reaction unit;
the aerobic reaction unit comprises three aerobic tanks which are connected in series.
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| CN111892238B (en) * | 2020-07-10 | 2022-07-29 | 南京师范大学 | Black and odorous water forward osmosis-coagulation-anoxic hydrolysis combined emergency treatment method |
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| DE102016105071A1 (en) * | 2016-03-18 | 2017-09-21 | Hochwald Foods Gmbh | Modular process and wastewater treatment system for the efficient purification of wastewater, in particular of differently polluted industrial wastewater |
| US10669168B2 (en) * | 2016-11-29 | 2020-06-02 | China Petroleum & Chemical Corporation | Method and system for treating brine waste water |
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| CN103288309A (en) * | 2013-07-01 | 2013-09-11 | 大唐国际化工技术研究院有限公司 | Coal gasification wastewater zero-emission treatment method, treatment system and application thereof |
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| CN206783478U (en) * | 2017-04-24 | 2017-12-22 | 天津聚雅源科技有限公司 | New high-salt wastewater processing unit |
| CN206985964U (en) * | 2017-06-02 | 2018-02-09 | 苏州苏净环保工程有限公司 | A kind of processing system of textile waste |
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