CN106746116A - A kind of zero-discharge treatment process for industrial wastewater and processing system - Google Patents

A kind of zero-discharge treatment process for industrial wastewater and processing system Download PDF

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Publication number
CN106746116A
CN106746116A CN201611200720.8A CN201611200720A CN106746116A CN 106746116 A CN106746116 A CN 106746116A CN 201611200720 A CN201611200720 A CN 201611200720A CN 106746116 A CN106746116 A CN 106746116A
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China
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water
treatment
concentrated
waste water
delivery port
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CN201611200720.8A
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Chinese (zh)
Inventor
陈胜利
王晓
许又志
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高频美特利环境科技(北京)有限公司
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Priority to CN201611200720.8A priority Critical patent/CN106746116A/en
Publication of CN106746116A publication Critical patent/CN106746116A/en

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/048Purification of waste water by evaporation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/285Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/1236Particular type of activated sludge installations
    • C02F3/1268Membrane bioreactor systems
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination
    • Y02A20/131Reverse-osmosis

Abstract

The invention belongs to water treatment field, more particularly to a kind of zero-discharge treatment process for industrial wastewater and processing system.The handling process is comprised the following steps:A) industrial wastewater carries out pH regulations, Anaerobic Treatment, Aerobic Process for Treatment and Membrane Bioreactor for Wastewater Treatment successively, obtains pretreated waste water;B) pretreated waste water carries out carbon filter and resin adsorption successively, obtains softening waste water;C) the softening waste water is processed by brackish water desalination reverse-osmosis membrane element, obtains the first fresh water and the first concentrated water;First fresh water is reclaimed;D) first concentrated water is processed by seawater desalination reverse osmosis membrane component, obtains the second fresh water and the second concentrated water;Second fresh water is reclaimed;E) second concentrated water is evaporated concentration, obtains steam and concentrate;The steam is condensed, and condensed water is reclaimed;The concentrate is dehydrated, and obtains solid slag.The present invention carries out a series for the treatment of by industrial wastewater, realizes the discharge of industrial wastewater zero.

Description

A kind of zero-discharge treatment process for industrial wastewater and processing system
Technical field
The invention belongs to water treatment field, more particularly to a kind of zero-discharge treatment process for industrial wastewater and processing system.
Background technology
Microelectric technique is one of most fast technology of contemporary development, is basis and the heart of electronics and information industry.Microelectronics The development of technology, promoted significantly space flight and aviation technology, remote measurement sensing technology, mechanics of communication, computer technology, network technology and The fast development of household electrical appliance industry.In China, microelectronic industry is classified as mainstay of the national economy industry.Nowadays, Microelectric technique has turned into the important symbol for weighing a national science technological progress and overall national strength.
Growth is developed rapidly with microelectronics industry, the industrial wastewater for producing therefrom turns into industry development restraining factors One of.These industrial wastewaters enter water body, particularly flow more slow lake, bay, easily cause in water algae and other Microorganism amount reproduction, forms eutrophication pollution, difficult except that can run water treatment plants, causes the peculiar smell of drinking water Outward, when serious oxygen in water can decline, fish mortality results even in the dry destruction in lake.Therefore, these works Industry waste water is before discharge, it is necessary to carry out qualified discharge treatment.But existed using qualified discharge tupe treatment industrial wastewater Treatment not thorough, be susceptible to the problem of secondary environmental pollution.
The content of the invention
In view of this, it is an object of the invention to provide a kind of zero-discharge treatment process for industrial wastewater and processing system, this Inventing the handling process for providing can realize the zero-emission of industrial wastewater, and the treatment to industrial wastewater is more thorough, is not susceptible to Secondary environmental pollution.
The invention provides a kind of zero-discharge treatment process for industrial wastewater, comprise the following steps:
A), industrial wastewater carries out pH regulations, Anaerobic Treatment, Aerobic Process for Treatment and Membrane Bioreactor for Wastewater Treatment successively, obtains pre- Treatment waste water;
B), the pretreated waste water carries out carbon filter and resin adsorption successively, obtains softening waste water;
C), the softening waste water is processed by brackish water desalination reverse-osmosis membrane element, obtains the first fresh water and first Concentrated water;First fresh water is reclaimed;
D), first concentrated water is processed by seawater desalination reverse osmosis membrane component, obtains the second fresh water and second dense Water;Second fresh water is reclaimed;
E), second concentrated water is evaporated concentration, obtains steam and concentrate;The steam is condensed, condensed water Reclaimed;The concentrate is dehydrated, and obtains solid slag.
Preferably, it is 6.5~8 that the industrial wastewater carries out the pH value after pH regulations.
Preferably, the COD≤50mg/L of the pretreated waste water.
Preferably, the COD≤10mg/L for softening waste water, hardness≤0.03mmol/L, SDI value≤5.
Preferably, the salt content of first concentrated water is 10~20g/L.
Preferably, the salt content of second concentrated water is 20~100g/L.
Preferably, the temperature of the evaporation and concentration is 80~120 DEG C.
Preferably, the mode of the dehydration is low-temperature evaporation, and the temperature of the low-temperature evaporation is 50~80 DEG C.
Preferably, the COD >=300mg/L of the industrial wastewater, salt content >=1000mg/L, ammonia-nitrogen content >=20mg/L, Total phosphorus content >=10mg/L.
The invention provides a kind of zero discharge of industrial waste water processing system, including:
Waste water storage tank;
The pH regulating tanks being connected with the waste water storage tank delivery port;
The anaerobic pond being connected with the pH regulating tanks delivery port;
The Aerobic Pond being connected with the anaerobic pond delivery port;
The membrane bioreactor being connected with the Aerobic Pond delivery port;
The active carbon filter being connected with the delivery port of the membrane bioreactor;
The resin tower being connected with the active carbon filter delivery port;
The brackish water desalination reverse osmosis membrane apparatus being connected with the resin tower delivery port;
The seawater desalination reverse osmosis film device being connected with the concentrated water outlet of the brackish water desalination reverse osmosis membrane apparatus;
The evaporation concentration device being connected with the concentrated water outlet of the seawater desalination reverse osmosis film device;
The dehydration device being connected with the concentrated solution outlet of the evaporation concentration device;
The condenser being connected with the steam (vapor) outlet of the evaporation concentration device;
The water outlet of water outlet, seawater desalination reverse osmosis film device with the brackish water desalination reverse osmosis membrane apparatus The reuse water tank being connected with the condensation-water drain of condenser.
Compared with prior art, the invention provides a kind of zero-discharge treatment process for industrial wastewater and processing system.This hair The handling process of bright offer is comprised the following steps:A), industrial wastewater carries out pH regulations, Anaerobic Treatment, Aerobic Process for Treatment and film successively Bioreactor for treatment, obtains pretreated waste water;B), the pretreated waste water carries out carbon filter and resin adsorption successively, obtains soft Change waste water;C), the softening waste water is processed by brackish water desalination reverse-osmosis membrane element, obtains the first fresh water and first dense Water;First fresh water is reclaimed;D), first concentrated water is processed by seawater desalination reverse osmosis membrane component, is obtained Second fresh water and the second concentrated water;Second fresh water is reclaimed;E), second concentrated water is evaporated concentration, obtains steam And concentrate;The steam is condensed, and condensed water is reclaimed;The concentrate is dehydrated, and obtains solid slag.The present invention is logical Cross carries out a series for the treatment of to industrial wastewater, realizes the discharge of industrial wastewater zero, relative to conventional qualified discharge tupe, The handling process that the present invention is provided is to the more thorough of wastewater treatment, it is not easy to which secondary environmental pollution occurs.Test result indicate that adopting Salt content≤the 200mg/L of the recycle-water that the method treatment provided with the present invention is obtained, COD≤1mg/L, ammonia-nitrogen content≤ 0.5mg/L, total phosphorus content≤0.1mg/L meets reuse requirement.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is zero-discharge treatment process for industrial wastewater flow chart provided in an embodiment of the present invention.
Specific embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment Only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area The every other embodiment that art personnel are obtained under the premise of creative work is not made, belongs to the model of present invention protection Enclose.
The invention provides a kind of zero-discharge treatment process for industrial wastewater, comprise the following steps:
A), industrial wastewater carries out pH regulations, Anaerobic Treatment, Aerobic Process for Treatment and Membrane Bioreactor for Wastewater Treatment successively, obtains pre- Treatment waste water;
B), the pretreated waste water carries out carbon filter and resin adsorption successively, obtains softening waste water;
C), the softening waste water is processed by brackish water desalination reverse-osmosis membrane element, obtains the first fresh water and first Concentrated water;First fresh water is reclaimed;
D), first concentrated water is processed by seawater desalination reverse osmosis membrane component, obtains the second fresh water and second dense Water;Second fresh water is reclaimed;
E), second concentrated water is evaporated concentration, obtains steam and concentrate;The steam is condensed, condensed water Reclaimed;The concentrate is dehydrated, and obtains solid slag.
In the handling process that the present invention is provided, pH regulations are carried out to industrial wastewater first.One provided in the present invention In embodiment, COD (the COD) >=300mg/L of the industrial wastewater, concretely 350mg/L, 400mg/L, 450mg/L, 500mg/L, 550mg/L or 600mg/L.In one embodiment that the present invention is provided, the industrial wastewater contains Salt amount >=1000mg/L, concretely 1500mg/L, 2000mg/L, 2500mg/L, 3000mg/L, 3500mg/L, 4000mg/L, 4500mg/L, 5000mg/L, 5500mg/L or 6000mg/L.In one embodiment that the present invention is provided, the industrial wastewater Ammonia-nitrogen content >=20mg/L, concretely 25mg/L, 30mg/L, 35mg/L, 40mg/L, 45mg/L or 50mg/L.In this hair In one embodiment of bright offer, the total phosphorus content >=10mg/L of the industrial wastewater, concretely 12mg/L, 15mg/L, 17mg/L, 20mg/L, 25mg/L or 30mg/L.In the present invention, the mode of pH regulation is to adding acid in industrial wastewater Property material and/or alkaline matter, the acidic materials preferably sulfuric acid, the alkaline matter are preferably NaOH.In the present invention In, the pH value of the waste water after the pH regulations is preferably 6.5~8, more preferably 7~8.In the present invention, it is preferred to Industry Waste Water carries out two step pH regulations, and the first step is coarse adjustment, and substantially to pH value is required, second step is accurate adjustment for regulation, is accurately adjusted to requiring PH value.
After completing pH regulations, waste water carries out Anaerobic Treatment.Waste water is by after Anaerobic Treatment, obtaining Anaerobic Treatment water outlet.Obtain After obtaining Anaerobic Treatment water outlet, Anaerobic Treatment water outlet carries out Aerobic Process for Treatment.In the present invention, it is preferred to carry out two-stage aerobic treatment, give up Water is by after Aerobic Process for Treatment, obtaining Aerobic Process for Treatment water outlet.In one embodiment that the present invention is provided, Anaerobic Treatment and aerobic place During reason, total hrt is 8~12h, specifically may be selected to be 8h, 10h or 12h.One provided in the present invention In embodiment, during Anaerobic Treatment and Aerobic Process for Treatment, BOD5 sludge loadings 0.1~0.3 specifically may be selected to be 0.2.At this Invent in the one embodiment for providing, during Anaerobic Treatment and Aerobic Process for Treatment, the dissolved oxygen≤0.2mg/L of anaerobism section has Body may be selected to be 0.15mg/L or 0.18mg/L;Dissolved oxygen >=the 2mg/L of aerobic section, specifically may be selected to be 2mg/L, 4mg/L or 5mg/L.In one embodiment that the present invention is provided, during Anaerobic Treatment and Aerobic Process for Treatment, the ammonia-nitrogen content of aerobic section (TN) load≤0.05 (aerobic section), specifically may be selected to be 0.05;Total phosphorus content (TP) load≤0.06 of anaerobism section, specifically may be used Select to be 0.06.In one embodiment that the present invention is provided, during Anaerobic Treatment and Aerobic Process for Treatment, sludge concentration 3000 ~5000mg/L, specifically may be selected to be 3500mg/L, 4000mg/L or 4500mg/L;Sludge age 10~20 days, specifically may be selected to be 15 days, 18 days or 20 days;Reflux ratio 100%~200%, specifically may be selected to be 120%, 150% or 200%.Carried in the present invention In one embodiment of confession, the COD≤80mg/L of Aerobic Process for Treatment water outlet specifically may be selected to be≤60mg/L or≤70mg/L;Ammonia Nitrogen content≤8mg/L, specifically may be selected to be≤7.8mg/L ,≤5.5mg/L;Total phosphorus content≤1mg/L, specifically may be selected to be≤ 0.3mg/L or≤0.4mg/L.
After obtaining Aerobic Process for Treatment water outlet, Aerobic Process for Treatment water outlet carries out Membrane Bioreactor for Wastewater Treatment.One provided in the present invention In individual embodiment, the film that the membrane bioreactor is used is hollow fiber membrane, and material is PVDF, the aperture of the film for 0.01~ 0.1 μm, specifically may be selected to be 0.03 μm, 0.04 μm, 0.05 μm, 0.06 μm, 0.07 μm, 0.08 μm or 0.09 μm.In the present invention In one embodiment of offer, micropore distribution device, the exposure of the micropore distribution device are provided with the membrane bioreactor Tolerance is preferably dissolved oxygen in making membrane bioreactor and is more than 2~5mg/L, more preferably 5mg/L.One provided in the present invention In embodiment, during Membrane Bioreactor for Wastewater Treatment, hydraulic detention time 8 of the Aerobic Process for Treatment water outlet in membrane bioreactor~ 15h, specifically may be selected to be 10h or 12h.It is dirty during Membrane Bioreactor for Wastewater Treatment in one embodiment that the present invention is provided Mud 3000~15000mg/L of concentration, specifically may be selected to be 5000mg/L, 5500mg/L or 6000mg/L;Sludge age 15~30 days, tool Body may be selected to be 20 days or 25 days.Waste water is by after Membrane Bioreactor for Wastewater Treatment, obtaining pretreated waste water.The one of present invention offer In individual embodiment, the COD≤50mg/L of the pretreated waste water;Ammonia-nitrogen content≤5mg/L;Total phosphorus content≤0.5mg/L, SDI (Silting Density Index, pollution index) value≤5.
After obtaining pretreated waste water, the pretreated waste water carries out carbon filter.In the present invention, carbon filter activity used Carbon is preferably cocoanut active charcoal, the particle diameter preferably 1~2mm of the activated carbon.In the present invention, the carbon filter is preferably in pressure type Carried out in filter, the waste water flow velocity of the carbon filter is preferably 6~15 ms/h, specifically may be selected to be 6 ms/h, 8 meters/small When or 10 ms/h;The pressure difference of the carbon filter is preferably controlled in 0.3~1.0kg/cm2, specifically may be selected to be 0.5kg/cm2.It is useless Water is by after carbon filter, obtaining carbon and leaching water.Carbon leaches the water quality index of water, and (Silting Density Index, pollution refers to SDI Number) value≤5, COD≤20mg/L.
After acquisition carbon leaches water, the carbon leaches water and carries out resin adsorption.In the present invention, the resin adsorption preferably exists Co-current regeneration cation is carried out in softening bed, and the resin of use is preferably gel-type macroreticular resin D001x7;Resin adsorption process In waste water flow velocity be preferably 10~20 ms/h, specifically may be selected to be 10 ms/h, 12 ms/h or 15 ms/h;Tree Pressure difference in fat adsorption process is controlled in 0.3~1.0kg/cm2, specifically may be selected to be 0.6kg/cm2Or 0.7kg/cm2.Waste water is passed through After crossing resin adsorption, obtain softening waste water.In one embodiment that the present invention is provided, the COD≤10mg/L for softening waste water, Hardness≤0.03mmol/L, SDI (Silting Density Index, pollution index) value≤5.
Obtain after softening waste water, the softening waste water is processed by brackish water desalination reverse-osmosis membrane element (BWRO). In the present invention, the membrane material of the brackish water desalination reverse-osmosis membrane element can be polyimides, and membrane aperture may be selected to be 0.1nm or so.In one embodiment that the present invention is provided, the membrane component is made up of some rolled films, every rolled film Membrane area be 37~40m2, preferably 37m2;In one embodiment that the present invention is provided, the membrane component is by 18 rollings Film is constituted, specific to may be selected 18.In the present invention, the membrane component can be single-stage membrane component, or plural serial stage Membrane component, can be specifically 2 grades series connection or 3 grades series connection.After waste water is processed through brackish water desalination reverse-osmosis membrane element, the is obtained One fresh water and the first concentrated water;First fresh water is reclaimed, and the salt content of first concentrated water is preferably controlled in 10~20g/ L, specifically may be selected to be 10g/L or 12g/L.
After obtaining the first concentrated water, first concentrated water is processed by seawater desalination reverse osmosis membrane component (SWRO). In the present invention, the membrane material of the seawater desalination reverse osmosis membrane component can be polyimides, and it is left that membrane aperture may be selected to be 0.1nm It is right.In one embodiment that the present invention is provided, the membrane component is made up of some rolled films, every membrane area of rolled film It is 37~40m2, preferably 37m2;In one embodiment that the present invention is provided, the membrane component is made up of 6 rolled films, tool Body may be selected 6.In the present invention, the membrane component can be single-stage membrane component.Waste water is through seawater desalination reverse osmosis membrane component After treatment, the second fresh water and the second concentrated water are obtained;Second fresh water is reclaimed, and the salt content of second concentrated water is preferably controlled System specifically may be selected to be 30g/L or 35g/L in 20~100g/L.
After obtaining the second concentrated water, second concentrated water is evaporated concentration.In the present invention, the temperature of the evaporative crystallization Preferably 80~120 DEG C, concretely 85 DEG C, 90 DEG C, 95 DEG C, 100 DEG C, 105 DEG C, 110 DEG C or 115 DEG C.In the present invention, institute State evaporation and concentration is preferably carried out in multi-effect evaporator or function of mechanical steam recompression evaporator.After evaporation and concentration treatment, obtain dense Contracting liquid and steam.In the present invention, the salt content in the concentrate is preferably 100~300g/L, is specifically chosen as 200g/L. That is, in evaporating concentration process, preferably carrying out discharge opeing when the salt content of indoor concentrate is concentrated by evaporation in 300g/L.
After obtaining concentrate and steam, the steam is condensed, and condensed water is reclaimed;The concentrate is taken off Water.In the present invention, the mode of the dehydration is preferably low-temperature evaporation, and the temperature of the low-temperature evaporation is preferably 50~80 DEG C, Specifically it is chosen as 55 DEG C, 60 DEG C, 65 DEG C, 70 DEG C or 75 DEG C.Solid slag, the outer treatment of solid slag committee are obtained after concentration fluid dewatering.
The present invention carries out a series for the treatment of by industrial wastewater, the discharge of industrial wastewater zero is realized, relative to routine Qualified discharge tupe, the handling process that the present invention is provided is to the more thorough of wastewater treatment, it is not easy to two secondary environments occur dirty Dye.Test result indicate that salt content≤the 200mg/L of the recycle-water obtained using the method treatment that the present invention is provided, COD≤ 1mg/L, ammonia-nitrogen content≤0.5mg/L, total phosphorus content≤0.1mg/L meets reuse requirement.
A kind of zero discharge of industrial waste water processing system that the present invention is provided, including:
Waste water storage tank;
The pH regulating tanks being connected with the waste water storage tank delivery port;
The anaerobic pond being connected with the pH regulating tanks delivery port;
The Aerobic Pond being connected with the anaerobic pond delivery port;
The membrane bioreactor being connected with the Aerobic Pond delivery port;
The active carbon filter being connected with the delivery port of the membrane bioreactor;
The resin tower being connected with the active carbon filter delivery port;
The brackish water desalination reverse osmosis membrane apparatus being connected with the resin tower delivery port;
The seawater desalination reverse osmosis film device being connected with the concentrated water outlet of the brackish water desalination reverse osmosis membrane apparatus;
The evaporation concentration device being connected with the concentrated water outlet of the seawater desalination reverse osmosis film device;
The dehydration device being connected with the concentrated solution outlet of the evaporation concentration device;
The condenser being connected with the steam (vapor) outlet of the evaporation concentration device;
The water outlet of water outlet, seawater desalination reverse osmosis film device with the brackish water desalination reverse osmosis membrane apparatus The reuse water tank being connected with the condensation-water drain of condenser.
Referring to Fig. 1, Fig. 1 is zero-discharge treatment process for industrial wastewater flow chart provided in an embodiment of the present invention.The present invention is carried The processing system of confession includes:Waste water storage tank, pH regulating tanks, anaerobic pond, Aerobic Pond, membrane bioreactor, active carbon filter, tree Fat tower, brackish water desalination reverse osmosis membrane apparatus, seawater desalination reverse osmosis film device, evaporation concentration device, dehydration device, condenser With reuse water tank.
In the present invention, the waste water storage tank is used to store industrial wastewater, is provided with water inlet and delivery port.
In the present invention, the pH regulating tanks are used to carry out pH regulations to industrial wastewater, are provided with pH adjusting agent and add Material mouth, water inlet and delivery port.The water inlet of the pH regulating tanks is connected with the delivery port of the liquid waste tank.Carried in the present invention In one embodiment of confession, the processing system includes two pH regulating tanks being connected in series, for ease of distinguishing, according to waste water stream Through order, a pH regulating tanks and the 2nd pH regulating tanks are named as, wherein, a pH regulating tanks are used for the coarse adjustment of pH value of waste water, Substantially to pH value is required, the 2nd pH regulating tanks are used for the accurate adjustment of pH value of waste water for regulation, accurately adjust to requiring pH value.
In the present invention, the waste water that the anaerobic pond is used for after being adjusted to pH carries out Anaerobic Treatment, is provided with into water Mouth and delivery port.The water inlet of the anaerobic pond is connected with the delivery port of the pH regulating tanks.In anaerobic pond, will be big in water Molecule, the organic matter of difficult degradation are converted into the small organic molecule of easily biological-degradable, are that follow-up Aerobic Process for Treatment reduces load and wound Make favourable biochemical condition.
In the present invention, the Aerobic Pond be used for Aerobic Process for Treatment is carried out to the waste water after Anaerobic Treatment, be provided with into The mouth of a river and delivery port.The water inlet of the Aerobic Pond is connected with the delivery port of the anaerobic pond.In the reality that the present invention is provided Apply in example, the processing system includes two Aerobic Ponds being connected in series, for ease of distinguishing, order, name are flowed through according to waste water It is the first Aerobic Pond and the second Aerobic Pond.In Aerobic Pond, under nitrification, ammonia nitrogen is oxidized to nitrate nitrogen, and concentration is fast Speed declines;Under heterotrophic bacteria effect, organic matter is decomposed, and COD constantly declines.
In the present invention, the membrane bioreactor (MBR reactors) is used to further locate the waste water after Aerobic Process for Treatment Reason, to reduce the pollutant index of waste water, is provided with water inlet, delivery port and sludge outlet.The membrane biological reaction The water inlet of device is connected with the delivery port of the Aerobic Pond.In one embodiment that the present invention is provided, the processing system is also Including organic sludge concentration tank, the import of the organic sludge thickener and the sludge outlet phase of the membrane bioreactor Even, for being concentrated to the sludge that membrane bioreactor is discharged.
In the present invention, the active carbon filter is used to carry out carbon filter to the waste water after Membrane Bioreactor for Wastewater Treatment, its On be provided with water inlet and delivery port.The delivery port phase of the water inlet of the active carbon filter and the membrane bioreactor Even.
In the present invention, the waste water that the resin tower is used for after being filtered to carbon carries out resin adsorption, is provided with water inlet And delivery port.The water inlet of the resin tower is connected with the delivery port of the active carbon filter.
In the present invention, the brackish water desalination reverse osmosis membrane apparatus (BWRO devices) are used for the waste water after resin adsorption Osmosis filtration is carried out, the outlet of water inlet, water outlet and concentrated water is provided with.The brackish water desalination reverse osmosis membrane apparatus Water inlet be connected with the delivery port of the resin tower.In one embodiment that the present invention is provided, the system for handling is also wrapped Include brackish water desalination reverse osmosis membrane raw water groove (BWRO raw waters groove), for being cached to the waste water after resin adsorption, the hardship Desalination reverse osmosis membrane raw water groove is arranged between resin tower and brackish water desalination reverse osmosis membrane apparatus.
In the present invention, the seawater desalination reverse osmosis film device (SWRO devices) is used for being obtained through the treatment of BWRO devices Concentrated water carry out osmosis filtration, be provided with water inlet, water outlet and concentrated water outlet.The seawater desalination reverse osmosis film The water inlet of device is connected with the concentrated water outlet of the brackish water desalination reverse osmosis membrane apparatus.In the implementation that the present invention is provided In example, the system for handling also includes brackish water desalination reverse osmosis membrane concentrated water groove (BWRO concentrated waters groove), for through BWRO devices The concentrated water that treatment is obtained is cached, and the brackish water desalination reverse osmosis membrane concentrated water groove is arranged on brackish water desalination reverse osmosis membrane dress Put and seawater desalination reverse osmosis film device between.
In the present invention, the evaporation concentration device is dense for being evaporated to the concentrated water obtained through the treatment of SWRO devices Contracting, is provided with water inlet, steam (vapor) outlet and concentrated solution outlet.The water inlet of the evaporation concentration device is light with the seawater The concentrated water outlet for changing reverse osmosis membrane apparatus is connected.In the one embodiment for providing in the present invention, the evaporation concentration device is Steam mechanical recompression evaporator (MVR evaporators).In one embodiment that the present invention is provided, the system for handling also includes Seawater desalination reverse osmosis film concentrated water groove (SWRO concentrated waters groove), for being cached to processing the concentrated water for obtaining through SWRO devices, institute Seawater desalination reverse osmosis film concentrated water groove is stated to be arranged between seawater desalination reverse osmosis film device and evaporation concentration device.
In the present invention, the dehydration device is used to that the concentrate of evaporation concentration device output be dehydrated being consolidated Slag, is provided with inlet and solid slag outlet.The concentrate of the inlet of the dehydration device and the evaporation concentration device Outlet is connected.In one embodiment that the present invention is provided, the dehydration device is that (VDC is dried low-temperature evaporation crystallizing and drying machine Machine).In one embodiment that the present invention is provided, the system for handling also includes concentration liquid bath, for delaying to concentrate Deposit, the concentration liquid bath is arranged between evaporation concentration device and dehydration device.
In the present invention, the condenser is used to condense the steam of evaporation concentration device output, is provided with Air inlet and condensation-water drain.The air inlet of the condenser is connected with the steam (vapor) outlet of the evaporation concentration device.
In the present invention, the reuse water tank is used to reclaim fresh water and condensed water, is provided with water inlet.Institute State the water inlet of reuse water tank water outlet, seawater desalination reverse osmosis film respectively with the brackish water desalination reverse osmosis membrane apparatus The water outlet of device is connected with the condensation-water drain of condenser.
The processing system running that the present invention is provided is as follows:Industrial wastewater initially enters waste water storage tank;Then flow successively PH adjusted groove, anaerobic pond, Aerobic Pond, membrane bioreactor, obtain pretreated waste water;Then pretreated waste water flows through work successively Property carbon filter and resin tower, obtain softening waste water;After-tack waste water located in brackish water desalination reverse osmosis membrane apparatus Reason, obtains the first fresh water and the first concentrated water;Then first it is dense processed in water seawater desalination reverse osmosis film device, obtain Two fresh water and the second concentrated water;The second concentrated water is evaporated concentration in evaporation concentration device afterwards, obtains steam and concentrate;Then Concentrate is dehydrated in dehydration device, obtains solid slag, the outer treatment of committee;Steam carries out being condensed within the condenser Water;First fresh water, the second fresh water and condensed water are delivered to reuse water tank.
The processing system that the present invention is provided carries out a series for the treatment of by industrial wastewater, realizes the row of industrial wastewater zero Put, relative to conventional qualified discharge tupe, the handling process that the present invention is provided is to the more thorough of wastewater treatment, it is not easy to send out Raw secondary environmental pollution.Test result indicate that the salt content of the recycle-water obtained using the method treatment that the present invention is provided≤ 200mg/L, COD≤1mg/L, ammonia-nitrogen content≤0.5mg/L, total phosphorus content≤0.1mg/L meet reuse requirement.
For the sake of becoming apparent from, it is described in detail below by following examples.
Embodiment 1
Zero discharge of industrial waste water processing system
The processing system that the present embodiment is provided includes:Waste water storage tank, a pH regulating tanks, the 2nd pH regulating tanks, anaerobic pond, First Aerobic Pond, the second Aerobic Pond, membrane bioreactor, organic sludge thickener, active carbon filter, resin tower, BWRO are former It is tank, BWRO devices, BWRO concentrated waters groove, SWRO devices, SWRO concentrated waters groove, MRV evaporators, concentration liquid bath, VDC drying machines, cold Condenser and reuse water tank.
Water inlet and delivery port are provided with the waste water storage tank.
PH adjusting agent charge door, water inlet and delivery port are provided with the first pH regulating tanks.The first pH regulations The water inlet of groove is connected with the delivery port of the waste water storage tank.
PH adjusting agent charge door, water inlet and delivery port are provided with the 2nd pH regulating tanks.The 2nd pH regulations The water inlet of groove is connected with the delivery port of a pH regulating tanks.
Water inlet and delivery port are provided with the anaerobic pond.The water inlet of the anaerobic pond goes out with the pH regulating tanks The mouth of a river is connected.
Water inlet and delivery port are provided with first Aerobic Pond.The water inlet of first Aerobic Pond and the anaerobism The delivery port in pond is connected.
Water inlet and delivery port are provided with second Aerobic Pond.The water inlet of second Aerobic Pond and described first The delivery port of Aerobic Pond is connected.
Water inlet, delivery port and sludge outlet are provided with the MBR reactors.The film that the MBR reactors are used It is hollow fiber membrane, the aperture of the film is 0.4 μm, and micropore distribution device is provided with the MBR reactors.The MBR reactions The water inlet of device is connected with the delivery port of second Aerobic Pond.
The import of the organic sludge thickener is connected with the sludge outlet of the membrane bioreactor.
Water inlet and delivery port are provided with the active carbon filter.The water inlet of the active carbon filter with it is described The delivery port of membrane bioreactor is connected.
Water inlet and delivery port are provided with the resin tower.The water inlet of the resin tower and the active carbon filter Delivery port be connected.
Water inlet and delivery port are provided with the BWRO raw waters groove.The water inlet of the BWRO raw waters groove and the resin The delivery port of tower is connected.
The outlet of water inlet, water outlet and concentrated water is provided with the BWRO devices.The membrane material of the BWRO membrane components Can be polyimides, membrane aperture may be selected to be 0.1nm, and the BWRO membrane components are made up of 18 rolled films, every rolled film Membrane area be 37m2, the BWRO membrane components are using 2 grades of series models.
The water inlet of the BWRO devices is connected with the delivery port of BWRO raw water grooves.
Water inlet and delivery port are provided with the BWRO concentrated waters groove.The water inlet of the BWRO concentrated waters groove and the BWRO The concentrated water outlet of device is connected.
The outlet of water inlet, water outlet and concentrated water is provided with the SWRO devices.The membrane material of the SWRO membrane components Can be polyimides, membrane aperture may be selected to be 0.1nm, and the SWRO membrane components are made up of 6 rolled films, every rolled film Membrane area is 37m2, the SWRO membrane components use single mode.The water inlet of the SWRO devices and the BWRO concentrated waters groove Delivery port be connected.
Water inlet and delivery port are provided with the SWRO concentrated waters groove.The water inlet of the SWRO concentrated waters groove and the SWRO The concentrated water outlet of device is connected.
Water inlet, steam (vapor) outlet and concentrated solution outlet are provided with the MVR evaporators.The water inlet of the MVR evaporators Mouth is connected with the delivery port of SWRO concentrated water grooves.
Water inlet and delivery port are provided with the concentration liquid bath.The water inlet of the concentration liquid bath evaporates with the MVR The concentrated solution outlet of device is connected.
Inlet and solid slag outlet are provided with the VDC drying machines.The inlet of the VDC drying machines and the concentration The delivery port of liquid bath is connected.
Air inlet and condensation-water drain are provided with the condenser.The air inlet of the condenser evaporates with the MVR The steam (vapor) outlet of device is connected.
The water inlet of reuse water tank water outlet respectively with the brackish water desalination reverse osmosis membrane apparatus, seawater are light The water outlet for changing reverse osmosis membrane apparatus is connected with the condensation-water drain of condenser.
The processing system running that the present invention is provided is as follows:Industrial wastewater initially enters waste water storage tank;Then flow successively Through a pH regulating tanks, the 2nd pH regulating tanks, anaerobic pond, the first Aerobic Pond, the second Aerobic Pond, membrane bioreactor, obtain pre- Treatment waste water and sludge;Then sludge is delivered to organic sludge thickener, pretreated waste water flow through successively active carbon filter and Resin tower, obtains softening waste water;After-tack waste water be first delivered to BWRO raw water grooves, then be transported to BWRO dresses from BWRO raw water grooves Processed in putting, obtained the first fresh water and the first concentrated water;Then the first concentrated water is first delivered to BWRO concentrated water grooves, then dense from BWRO Tank is processed in being transported to SWRO devices, obtains the second fresh water and the second concentrated water;The second concentrated water is in MRV evaporators afterwards Concentration is evaporated, steam and concentrate is obtained;Then concentrate is first delivered to concentration liquid bath, is transported to from concentration liquid bath It is dried in VDC drying machines, obtains solid slag, the outer treatment of committee;Steam carries out condensing within the condenser that to obtain condensed water first light Water, the second fresh water and condensed water are delivered to reuse water tank.
Embodiment 2
Zero-discharge treatment process for industrial wastewater
The processing system provided using embodiment 1 carries out zero discharge treatment to industrial wastewater
Day output:360t/d;Import salt content:4500mg/L, import COD:350mg/L, import ammonia nitrogen:35mg/L, Import total phosphorus:15mg/L.
In processing system running, the pH value of the 2nd pH regulating tank water outlets is 7~8;
Anaerobic pond, the first Aerobic Pond and the second Aerobic Pond, total hrt 10 hours in processing procedure, BOD5 sludge Load 0.2, anaerobic pond dissolved oxygen 0.15mg/L, Aerobic Pond dissolved oxygen 2mg/L, TN load 0.05 (aerobic section), TP loads 0.06 (anaerobism section), sludge concentration 4500mg/L, sludge age 20 days, reflux ratio 150%.The water quality index of Aerobic Process for Treatment water outlet, COD≤ 70mg/L, ammonia-nitrogen content≤7.8mg/L, total phosphorus content≤0.3mg/L
MBR reactors hydraulic detention time 12 hours, sludge concentration 5000mg/L, sludge age 20 days, dissolved oxygen 5mg/L;
MBR reactor effluent qualities are monitored, control water outlet COD50mg/L;
Active carbon filter carbon filtration Cheng Caiyong pressure filters, activated carbon used are cocoanut active charcoal, activated carbon grain 1~2mm of footpath, 10 ms/h of filtration flow-rate, filtration pressure difference control are in 0.5kg/cm2.Waste water is by after carbon filter, obtaining carbon and leaching Water.Carbon leaches the water quality index of water, SDI (Silting Density Index, pollution index) value≤5, COD≤18mg/L;
Resin tower softens bed, resin and uses gel-type macroreticular resin D001x7, filtration flow-rate using co-current regeneration cation 15 ms/h, filtration pressure difference control in 0.6kg/cm2.Resin tower effluent quality is monitored, control water outlet COD≤10mg/ L, hardness≤0.03mmol/L, SDI values < 5;
BWRO devices, control the salt content of the first concentrated water of BWRO device outputs in 10g/L;
SWRO devices, control the salt content of the second concentrated water of SWRO device outputs in 30g/L;
MRV evaporators, at 100 DEG C, the salt content of concentrate is in 200g/L in control hair crystallisation chamber for vaporization chamber temperature setting Shi Jinhang discharge opeings, obtain concentrate;
VDC drying machines;Drying temperature is arranged on 80 DEG C.
The water quality of water to being collected in reuse water tank is monitored, as a result for:Salt content 100mg/L, COD0.8mg/L, ammonia Nitrogen content 0.4mg/L, total phosphorus content≤0.08mg/L meets reuse requirement.
Embodiment 3
Zero-discharge treatment process for industrial wastewater
The processing system provided using embodiment 1 carries out zero discharge treatment to industrial wastewater
Day output:500t/d;Import salt content:5000mg/L, import COD:450mg/L, import ammonia nitrogen:25mg/L, Import total phosphorus:10mg/L.
In processing system running, the pH value of the 2nd pH regulating tank water outlets is 7~8;
Anaerobic pond, the first Aerobic Pond and total hrt 8 hours in the second Aerobic Pond processing procedure, BOD5 sludge are born Lotus 0.2, anaerobic pond dissolved oxygen 0.15mg/L, Aerobic Pond dissolved oxygen 5mg/L, TN load 0.05 (aerobic section), TP loads 0.06 (are detested Oxygen section), sludge concentration 3500mg/L, sludge age 15 days, reflux ratio 120%.The water quality index of Aerobic Process for Treatment water outlet, COD≤60mg/ L, ammonia-nitrogen content≤5.5mg/L, total phosphorus content≤0.4mg/L
MBR reactors hydraulic detention time 10 hours, sludge concentration 6000mg/L, sludge age 25 days, dissolved oxygen 5mg/L;
MBR reactor effluent qualities are monitored, control water outlet COD≤50mg/L;
Active carbon filter carbon filtration Cheng Caiyong pressure filters, activated carbon used are cocoanut active charcoal, activated carbon grain 1~2mm of footpath, 6 ms/h of filtration flow-rate, filtration pressure difference control are in 0.5kg/cm2.Waste water is by after carbon filter, obtaining carbon and leaching Water.Carbon leaches the water quality index of water, SDI (Silting Density Index, pollution index) value≤5, COD≤20mg/L;
Resin tower softens bed, resin and uses gel-type macroreticular resin D001x7, filtration flow-rate using co-current regeneration cation 10 ms/h, filtration pressure difference control in 0.6kg/cm2.;Resin tower effluent quality is monitored, control water outlet COD≤ 10mg/L, hardness≤0.03mmol/L, SDI values < 5;
BWRO devices, control the salt content of the first concentrated water of BWRO device outputs in 10g/L;
SWRO devices, control the salt content of the second concentrated water of SWRO device outputs in 30g/L;
MRV evaporators, at 105 DEG C, the salt content of concentrate is in 200g/L in control hair crystallisation chamber for vaporization chamber temperature setting Shi Jinhang discharge opeings, obtain concentrate;
VDC drying machines;Drying temperature is arranged on 75 DEG C.
The water quality of water to being collected in reuse water tank is monitored, as a result for:Salt content 92mg/L, COD0.5mg/L, ammonia Nitrogen content 0.3mg/L, total phosphorus content≤0.05mg/L meets reuse requirement.
Embodiment 4
Zero-discharge treatment process for industrial wastewater
The processing system provided using embodiment 1 carries out zero discharge treatment to industrial wastewater
Day output:240t/d;Import salt content:3500mg/L, import COD:500mg/L, import ammonia nitrogen:45mg/L, Import total phosphorus:12mg/L.
In processing system running, the pH value of the 2nd pH regulating tank water outlets is 7~8;
Anaerobic pond, the first Aerobic Pond and total hrt 12 hours, BOD5 sludge in the second Aerobic Pond processing procedure Load 0.3, anaerobic pond dissolved oxygen 0.18mg/L, Aerobic Pond dissolved oxygen 4mg/L, TN load 0.05 (aerobic section), TP loads 0.06 (anaerobism section), sludge concentration 4000mg/L, sludge age 18 days, reflux ratio 200%.The water quality index of Aerobic Process for Treatment water outlet, COD≤ 80mg/L, ammonia-nitrogen content 7.8mg/L, total phosphorus content≤0.3mg/L
MBR reactors hydraulic detention time 10 hours, sludge concentration 5500mg/L, sludge age 25 days, dissolved oxygen 5mg/L;
MBR reactor effluent qualities are monitored, control water outlet COD45mg/L;
Active carbon filter carbon filtration Cheng Caiyong pressure filters, activated carbon used are cocoanut active charcoal, activated carbon grain 1~2mm of footpath, 8 ms/h of filtration flow-rate, filtration pressure difference control are in 0.5kg/cm2.Waste water is by after carbon filter, obtaining carbon and leaching Water.Carbon leaches the water quality index of water, SDI (Silting Density Index, pollution index) value≤5, COD≤20mg/L;
Resin tower softens bed, resin and uses gel-type macroreticular resin D001x7, filtration flow-rate using co-current regeneration cation 12 ms/h, filtration pressure difference control in 0.7kg/cm2.;Resin tower effluent quality is monitored, control water outlet COD≤ 10mg/L, hardness≤0.03mmol/L, SDI values < 5;
BWRO devices, control the salt content of the first concentrated water of BWRO device outputs in 12g/L;
SWRO devices, control the salt content of the second concentrated water of SWRO device outputs in 35g/L;
MRV evaporators, at 90 DEG C, the salt content of concentrate is in 200g/L in control hair crystallisation chamber for vaporization chamber temperature setting Discharge opeing is carried out, concentrate is obtained;
VDC drying machines;Drying temperature is arranged on 78 DEG C.
The water quality of water to being collected in reuse water tank is monitored, as a result for:Salt content 85mg/L, COD0.7mg/L, ammonia Nitrogen content 0.3mg/L, total phosphorus content≤0.07mg/L meets reuse requirement.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (10)

1. a kind of zero-discharge treatment process for industrial wastewater, comprises the following steps:
A), industrial wastewater carries out pH regulations, Anaerobic Treatment, Aerobic Process for Treatment and Membrane Bioreactor for Wastewater Treatment successively, is pre-processed Waste water;
B), the pretreated waste water carries out carbon filter and resin adsorption successively, obtains softening waste water;
C), the softening waste water is processed by brackish water desalination reverse-osmosis membrane element, obtains the first fresh water and the first concentrated water; First fresh water is reclaimed;
D), first concentrated water is processed by seawater desalination reverse osmosis membrane component, obtains the second fresh water and the second concentrated water;Institute The second fresh water is stated to be reclaimed;
E), second concentrated water is evaporated concentration, obtains steam and concentrate;The steam is condensed, and condensed water is carried out Reclaim;The concentrate is dehydrated, and obtains solid slag.
2. handling process according to claim 1, it is characterised in that the pH value that the industrial wastewater carries out after pH regulations is 6.5~8.
3. handling process according to claim 1, it is characterised in that the COD≤50mg/L of the pretreated waste water.
4. handling process according to claim 1, it is characterised in that the COD≤10mg/L of the softening waste water, hardness≤ 0.03mmol/L, SDI value≤5.
5. handling process according to claim 1, it is characterised in that the salt content of first concentrated water is 10~20g/L.
6. handling process according to claim 1, it is characterised in that the salt content of second concentrated water is 20~100g/ L。
7. handling process according to claim 1, it is characterised in that the temperature of the evaporation and concentration is 80~120 DEG C.
8. handling process according to claim 1, it is characterised in that the mode of the dehydration is low-temperature evaporation, described low The temperature of temperature evaporation is 50~80 DEG C.
9. the handling process according to any one of claim 1~8, it is characterised in that the COD of the industrial wastewater >= 300mg/L, salt content >=1000mg/L, ammonia-nitrogen content >=20mg/L, total phosphorus content >=10mg/L.
10. a kind of zero discharge of industrial waste water processing system, including:
Waste water storage tank;
The pH regulating tanks being connected with the waste water storage tank delivery port;
The anaerobic pond being connected with the pH regulating tanks delivery port;
The Aerobic Pond being connected with the anaerobic pond delivery port;
The membrane bioreactor being connected with the Aerobic Pond delivery port;
The active carbon filter being connected with the delivery port of the membrane bioreactor;
The resin tower being connected with the active carbon filter delivery port;
The brackish water desalination reverse osmosis membrane apparatus being connected with the resin tower delivery port;
The seawater desalination reverse osmosis film device being connected with the concentrated water outlet of the brackish water desalination reverse osmosis membrane apparatus;
The evaporation concentration device being connected with the concentrated water outlet of the seawater desalination reverse osmosis film device;
The dehydration device being connected with the concentrated solution outlet of the evaporation concentration device;
The condenser being connected with the steam (vapor) outlet of the evaporation concentration device;
Water outlet, the water outlet of seawater desalination reverse osmosis film device with the brackish water desalination reverse osmosis membrane apparatus and cold The connected reuse water tank of the condensation-water drain of condenser.
CN201611200720.8A 2016-12-22 2016-12-22 A kind of zero-discharge treatment process for industrial wastewater and processing system CN106746116A (en)

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