CN108569829A - A kind of Cotton Spinning Fibre Dyeing Wastewater treatment for reuse device and reuse method - Google Patents

A kind of Cotton Spinning Fibre Dyeing Wastewater treatment for reuse device and reuse method Download PDF

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Publication number
CN108569829A
CN108569829A CN201810639170.2A CN201810639170A CN108569829A CN 108569829 A CN108569829 A CN 108569829A CN 201810639170 A CN201810639170 A CN 201810639170A CN 108569829 A CN108569829 A CN 108569829A
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China
Prior art keywords
water
waste water
quality
sludge
tank
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Inventor
黄广道
樊国峰
张建
钱利华
胡艳东
陈锐
廖善成
潘志祥
曾铭颖
徐昌伟
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Environmental Protection Design And Research Institute Of Huaqiao University
Quanzhou Huada Environment Protection Technology Co Ltd
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Environmental Protection Design And Research Institute Of Huaqiao University
Quanzhou Huada Environment Protection Technology Co Ltd
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Priority to CN201810639170.2A priority Critical patent/CN108569829A/en
Publication of CN108569829A publication Critical patent/CN108569829A/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
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • 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
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • 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
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • 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
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • 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
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/722Oxidation by peroxides
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/30Nature of the water, waste water, sewage or sludge to be treated from the textile industry
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2203/00Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/006Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/02Temperature
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/06Controlling or monitoring parameters in water treatment pH
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/08Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/14NH3-N
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/04Flow arrangements
    • C02F2301/046Recirculation with an external loop
    • 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
    • C02F2303/00Specific treatment goals
    • C02F2303/02Odour removal or prevention of malodour
    • 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
    • C02F3/30Aerobic and anaerobic 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
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used

Abstract

The present invention provides a kind of Cotton Spinning Fibre Dyeing Wastewater treatment for reuse devices and reuse method, described device to include:Materialized pretreatment unit, the biochemical treatment unit being connected to the materialized pretreatment unit, the physicochemical treatment unit being connected to the biochemical treatment unit, the materialization advanced treatment unit being connected to the physicochemical treatment unit.The advantage of the treatment technologies such as present invention combination coagulant sedimentation, traditional activated sludge process, biofilm, advanced oxidation processes, physisorphtion, have many advantages, such as that treatment effeciency is high, floor space is small, at low cost, easy to operate easily controllable, advanced treating can be carried out to textile dyeing waste water, effluent quality reaches or is better than after processing《Textile dyeing and finishing industrial reuse water water quality》(FZ/T 01,107 2011) index of correlation can be back to the industrial waters such as middle dark cotton, the colouring workshop section of yarn, final finishing workshop section, be conducive to save water resource and the energy, guarantee environment safety realizes the sustainable development of dyeing.

Description

A kind of Cotton Spinning Fibre Dyeing Wastewater treatment for reuse device and reuse method
Technical field
The present invention relates to sewage treatment fields, in particular to a kind of Cotton Spinning Fibre Dyeing Wastewater treatment for reuse device and reuse Method more particularly to a kind of textile treatment of dyeing wastewater reclamation set and reuse method.
Background technology
Dyeing is the maincenter link of textile industry, and one of the important procedure in entire Textile Chain.Whole In Textile Chain, dyeing industry pop-up textile industry, under hold rag trade, the technological progress of dyeing can promote upstream yarn Line, the surcharge of fabric, while the class and style of downstream clothes can also be influenced.The ups and downs of printing and dyeing industry are directly closed The whole competitiveness of the China Xi Zhe textile and garment enterprise.In recent years, there is unprecedented fast development in China's dyeing Situation, diversification investments pour in, and Advanced Equipment is gone into operation in succession, and new product, new technology expose one after another, production capacity part in the whole world Volume persistently rises, and has become country largest in world's dyeing industry.
While creating economic benefit for country, the water pollution pressure brought also should not be underestimated dyeing.In China Emphasis pollutes in industry, and dyeing is water consumption rich and influential family, and wastewater discharge and the total amount of pollutant occupy national industrial department respectively Second and the 4th.Dyeing waste water is big with discharge capacity always, intractability is high and as waste water treatment technical study weight Point and difficult point.Meanwhile with the fast development of Chinese economy, water scarcity oneself become restrict China's dyeing further send out The limiting factor of exhibition.In order to realize the sustainable development of dyeing, the recycling reuse of dyeing waste water, which becomes, realizes this mesh Target is crucial.
Printing and dyeing industry can be divided into cotton spinning printing and dyeing, flax spinning printing and dyeing, wool manufacturing according to product using the difference of raw material Whole, silk of printing and dyeing is printed and dyed and other printing and dyeing, waste water quality and raw material type, production auxiliary materials, product category, the production technology of discharge Etc. factors it is closely related.It is miscellaneous containing dyestuff, slurry, auxiliary agent, finish, soda acid, fiber in waste water for Cotton Spinning Fibre Dyeing Wastewater Matter, inorganic salts, surfactant etc. have complicated component, the spies such as organic concentrations are high, temperature is high, coloration is big, variation water quality is big Point.When containing a large amount of polyvinyl alcohol (PVA) slurry and other novel macromolecular organic compounds difficult to degrade especially in waste water, BOD/COD (biochemical oxygen demand (BOD)/COD) ratio is low, and biodegradability is poor, and wastewater treatment difficulty is high.
Invention content
A series of concept of reduced forms is introduced in Summary, this will in the detailed description section into One step is described in detail.The Summary of the present invention is not meant to attempt to limit technical solution claimed Key feature and essential features do not mean that the protection domain for attempting to determine technical solution claimed more.
In view of the deficiencies of the prior art, the present invention provides a kind of Cotton Spinning Fibre Dyeing Wastewater treatment for reuse device, described devices Including:
Materialized pretreatment unit, the materialized pretreatment unit be used for regulating water quality, water and water temperature, remove waste water in Grain larger suspended matter and floating material, avoid that the equipment such as elevator pump are resulted in blockage and worn, and reduce subsequent technique and handle load;
Biochemical treatment unit, the biochemical treatment unit is connected to the materialized pretreatment unit, for receiving the object Change the water outlet of pretreatment unit, and using the pollutant in the metabolism degrading waste water of microorganism, reduces COD (chemical oxygen demands Amount), BOD (biochemical oxygen demand (BOD)), ammonia nitrogen isoconcentration;
Physicochemical treatment unit, the physicochemical treatment unit is connected to the biochemical treatment unit, for receiving the biochemistry The water outlet of processing unit, and further remove suspended matter, colloidal substance, organic matter, decoloration etc. in waste water;
Materialization advanced treatment unit, the materialization advanced treatment unit is connected to the physicochemical treatment unit, for receiving The water outlet of the physicochemical treatment unit, and oxygenolysis is carried out to residual contaminants therein, absorption, decolourizes, go to eliminate the unusual smell, it is thorough Bottom purifies water.
Illustratively, the materialized pretreatment unit includes:
Grid pond, the grid pond is for removing particle larger floating material and suspended matter;;
Regulating reservoir, the regulating reservoir are connected to the grid pond, the water outlet for receiving the grid pond and tentatively cooling, Adjust pH, water quality and water;
Primary sedimentation tank, the primary sedimentation tank are connected to the regulating reservoir, and the water outlet for receiving the regulating reservoir is simultaneously flocculated Precipitation, removes the polluters such as oil removal, colloidal substance, organic matter.
Illustratively, it is provided with mechanical grille in the grid pond, the grid pond top is provided with workbench, institute The grid slag for stating mechanical grille interception is conveyed and/or is transported outward disposition using the screw conveyor being installed on workbench.
Illustratively, cooling tower is additionally provided between the regulating reservoir and the primary sedimentation tank, it is described used for cooling tower in summer and autumn Cool down to entering the waste water in the primary sedimentation tank when season waste water temperature is high.
Illustratively, the regulating reservoir includes:
PH on-line detectors, for detecting the pH in the regulating reservoir;
Temperature-detecting device, for detecting the temperature in the regulating reservoir in real time;
Acid-base modifier delivery device, the pH preset ranges for being arranged according to the pH on-line detectors launch acid automatically Alkali conditioning agent adjusts the pH of pending waste water to pH preset ranges;
Air stirrer, for carrying out aeration agitation to waste water, preliminary cooling, water, prevents in waste water uniform water quality Suspended matter precipitation.
Illustratively, the primary sedimentation tank includes:
High-precision cloth water regulator, is evenly arranged for the waste water to access, avoids flow short-circuit;
Illustratively, the biochemical treatment unit includes:
The ponds high load capacity O/A/O, the ponds the high load capacity O/A/O reduce COD for further degrading to the organic matter in waste water (COD), BOD (biochemical oxygen demand (BOD)), ammonia nitrogen, isoconcentration;
Secondary settling tank, the secondary settling tank are connected to the ponds the high load capacity O/A/O, for receiving the ponds the high load capacity O/A/O It is discharged and is separated by solid-liquid separation, while being back in the ponds the high load capacity O/A/O while obtained sludge part will be separated by solid-liquid separation.
Illustratively, the ponds the high load capacity O/A/O include:
Low speed pushing flow blender under liquid, the sludge for being stirred at reflux provide condition for denitrification denitrogenation.
Composite filling:For for biomembrane attachment or suspension growth carrier is provided.
Magnetic-suspension high-speed centrifugal blower:For being supplied oxygen for the ponds the high load capacity O/A/O.
Illustratively, the secondary settling tank includes:
Pump suction type inhales mud scraper, for drawing the sludge of the secondary settling tank bottom precipitation to sludge sump, later using weight Force flow is to the ponds high load capacity O/A/O or sludge concentration tank.
Illustratively, the physicochemical treatment unit includes:
Collecting-tank, the collecting-tank are connected to the secondary settling tank, the water outlet for storing the secondary settling tank;
Circulatior clarifier, the circulatior clarifier are connected to the collecting-tank, for receiving the collecting-tank Water outlet, and by waterpower mixing, flocculation, precipitation, remove suspended matter, the colloidal substance etc. in waste water, water made to be clarified.
Valveless filtering pool, the valveless filtering pool are connected to the circulatior clarifier, clear for receiving the Hydraulic Circulation The water outlet in clear pond, is handled by sand filtration, further removes molecule, suspended matter etc. in waste water.
Illustratively, the materialization advanced treatment unit includes:
Oxidation pond, the oxidation pond are connected to the valveless filtering pool, are discharged with the valveless filtering pool for storing hydrogen peroxide The mixed waste water of waterpower, and the partial organic substances in oxygenolysis waste water and other reducing substances reduce consequent activities charcoal The load of adsorption tower;
Activated carbon adsorber, the activated carbon adsorber are connected to the oxidation pond, for receiving going out for the oxidation pond Water, and remaining organic matter, colloid, suspended matter, chromophoric group, dyestuff, peculiar smell etc. in waste water are adsorbed by activated carbon, Hydrogen peroxide is to the further chain rupture of the organic matter for being adsorbed in the difficult for biological degradation of activated carbon surface or internal voids, open loop, oxygen simultaneously Change.
Reuse tank, the reuse tank are connected to the activated carbon adsorber, for receiving going out for the activated carbon adsorber Water can be used as the backwash water source of activated carbon adsorber, can be back to middle dark cotton, the colouring workshop section of yarn, rear finishing duplex The industrial waters such as section.
Illustratively, cocoanut active charcoal is used in the activated carbon adsorber.
Illustratively, described device further includes sludge treating block, and the sludge treating block includes sludge concentration tank, dirt The quenched pond of mud and enhanced chamber-type press filter;
Wherein, the sludge concentration tank respectively with primary sedimentation tank, the biochemical treatment list in the materialized pretreatment unit Circulatior clarifier connection in secondary settling tank, the physicochemical treatment unit in member, for recycling the primary sedimentation tank, described two Sludge in heavy pond and the circulatior clarifier;
The quenched pond of sludge is connect with the sludge concentration tank, and sludge carries out modifier treatment after entering the quenched pond of sludge;
The enhanced chamber-type press filter is connect with the quenched pond of the sludge, for carrying out dehydration shape to the sludge after quenched At dry mud.
Illustratively, described device further includes control unit, and described control unit is used to combine online monitoring instrument or aobvious Show instrument, waste water in processing procedure is monitored and data processing, controlled equipment is automatically or manually controlled.
The present invention also provides a kind of Cotton Spinning Fibre Dyeing Wastewater treatment for reuse method, the method includes:
Step S1:Materialized pretreatment is carried out to Cotton Spinning Fibre Dyeing Wastewater, with regulating water quality, water and water temperature, is removed in waste water Particle larger suspended matter and floating material;
Step S2:Biochemical treatment is carried out to the water outlet of the materialized pretreatment unit, reduces COD (COD), BOD (biochemical oxygen demand (BOD)), ammonia nitrogen isoconcentration;
Step S3:The biochemical treatment unit is discharged and carries out materializing strategy, further removes suspended matter, the glue in waste water Body substance, organic matter, decoloration etc.;
Step S4:Materialization advanced treating is carried out to the water outlet of physicochemical treatment unit, oxygen is carried out to residual contaminants therein Change is decomposed, is adsorbed, decolourizing, going to eliminate the unusual smell, and is thoroughly purified water.
Illustratively, further include in the step S1:
The pH value of the Cotton Spinning Fibre Dyeing Wastewater is adjusted to 8.5-10, while air is carried out to the Cotton Spinning Fibre Dyeing Wastewater and is stirred It mixes, cool down, uniform water quality and water.
Illustratively, further include in the step S1:
Ferrous sulfate is added in the Cotton Spinning Fibre Dyeing Wastewater and polyacrylamide carries out flocculation sediment, wherein sulfuric acid is sub- The quality that iron is added is the 2 ‰ -3 ‰ of wastewater quality, and the quality that polyacrylamide is added is the 0.1 ‰ -0.2 ‰ of wastewater quality.
Illustratively, further include in the step S3:
Aluminium polychloride is added in the Cotton Spinning Fibre Dyeing Wastewater and polyacrylamide carries out flocculation sediment, wherein polymerization The quality that aluminium chloride is added is the 1 ‰ -2 ‰ of wastewater quality, and the quality that polyacrylamide is added is the 0.05 ‰-of wastewater quality 0.1‰。
Illustratively, biological to the hardly possible for being adsorbed in activated carbon surface or internal voids using hydrogen peroxide in the step S4 The further chain rupture of organic matter, open loop, the oxidation of degradation, the quality that hydrogen peroxide is added are the 0.5 ‰ -1.5 ‰ of wastewater quality.
The present invention provides a kind of Cotton Spinning Fibre Dyeing Wastewater treatment for reuse devices and reuse method, described device to include:Materialization Pretreatment unit, the biochemical treatment unit being connected to the materialized pretreatment unit, the object being connected to the biochemical treatment unit Change processing unit, the materialization advanced treatment unit being connected to the physicochemical treatment unit.Present invention combination coagulant sedimentation, tradition The advantage of the treatment technologies such as activated sludge process, biofilm, advanced oxidation processes, physisorphtion has treatment effeciency height, takes up an area The advantages that area is small, at low cost, easy to operate easily controllable can carry out textile dyeing waste water advanced treating, processing Effluent quality reaches or is better than afterwards《Textile dyeing and finishing industrial reuse water water quality》(FZ/T 01107-2011) index of correlation, can return For industrial waters such as middle dark cotton, the colouring workshop section of yarn, final finishing workshop sections, is conducive to save water resource and the energy, protect Hinder Environmental security, realizes the sustainable development of dyeing.
Description of the drawings
The following drawings of the present invention is used to understand the present invention in this as the part of the present invention.Shown in the drawings of this hair Bright embodiment and its description, principle used to explain the present invention.
In attached drawing:
Fig. 1 is the structural schematic diagram of textile treatment of dyeing wastewater reclamation set.
1, grid pond 2, regulating reservoir 3, cooling tower
4, primary sedimentation tank 5, the ponds high load capacity O/A/O 6, secondary settling tank
7, collecting-tank 8, circulatior clarifier 9, valveless filtering pool
10, oxidation pond 11, activated carbon adsorber 12, reuse tank
13, the quenched pond 15 of sludge concentration tank 14, sludge, enhanced chamber-type press filter
Specific implementation mode
In the following description, a large amount of concrete details are given in order to provide more thorough understanding of the invention.So And it is obvious to the skilled person that the present invention may not need one or more of these details and be able to Implement.In other examples, in order to avoid with the present invention obscure, for some technical characteristics well known in the art not into Row description.
It should be understood that the present invention can be implemented in different forms, and should not be construed as being limited to propose here Embodiment.Disclosure will be made thoroughly and complete on the contrary, providing these embodiments, and will fully convey the scope of the invention to Those skilled in the art.In the accompanying drawings, for clarity, the size and relative size in the areas Ceng He may be exaggerated.From beginning to end Same reference numerals indicate identical element.
The purpose of term as used herein is only that description specific embodiment and not as the limitation of the present invention.Make herein Used time, " one " of singulative, "one" and " described/should " be also intended to include plural form, unless context is expressly noted that separately Outer mode.It is also to be understood that term " composition " and/or " comprising ", when being used in this specification, determines the feature, whole The presence of number, step, operations, elements, and/or components, but be not excluded for one or more other features, integer, step, operation, The presence or addition of component, assembly unit and/or group.Herein in use, term "and/or" includes any of related Listed Items and institute There is combination.
Embodiment one
Below in conjunction with the accompanying drawings below the work of 1 pair of textile advanced treatment and reuse of dyeing waste water device of the present invention It is described in detail, it should be appreciated that following embodiments are not as limitation of the present invention.
As shown in Fig. 1, textile advanced treatment and reuse of dyeing waste water device of the present invention, including grid pond 1, tune Save pond 2, cooling tower 3, primary sedimentation tank 4, the ponds high load capacity O/A/O 5, secondary settling tank 6, collecting-tank 7, circulatior clarifier 8, valveless filtering pool 9, the quenched pond 14 of oxidation pond 10, activated carbon adsorber 11, reuse tank 12, sludge concentration tank 13, sludge and enhanced van-type press filtration Machine 15.
Wherein, the high concentration refers to former containing a large amount of organic matter, suspended particulate and other printing and dyeing during cotton spinning fiber printing-dyeing is useless Expect the pollutant generated.
Wherein, production waste water stream enters grid pond 1, and regulating reservoir 2 is flowed into after mechanical grille removes larger suspended matter, preliminary to drop Temperature adjusts pH, water quality and water.Waste water is pumped into primary sedimentation tank 4 and (also needs further to drop through cooling tower 3 when waste water temperature is high later Wen Houzai flow into primary sedimentation tank 4) be added flocculant 1# flocculated, precipitated, reduce total solid suspended matter (SS), COD (COD) etc..4 supernatant of primary sedimentation tank enters the ponds high load capacity O/A/O 5 and carries out biochemical treatment, and most of organic matter of degrading is discharged later It is separated by solid-liquid separation into secondary settling tank 6,6 supernatant of secondary settling tank flows into collecting-tank 7, and waterpower is pumped into after being mixed later with flocculant 2# Circulation clarifying pool 8 enters valveless filtering pool 9 after waste water clarification, and inflow is mixed with hydrogen peroxide after removing most of colloid and suspended matter Oxidation pond 10.Waste water is pumped into activated carbon adsorber 11 later, further absorption, the organic matter in oxidized waste water, colloid, suspension Object, chromophoric group and peculiar smell etc., later water outlet flow into reuse tank 12, are finally promoted with pump and are back to middle dark color cotton, yarn The industrial waters such as colouring workshop section, final finishing workshop section.Recycle-water can be used as the backwash water source of activated carbon adsorber.
Wherein, mechanical grille is installed, workbench, the grid slag of interception is arranged in 1 top of the grid pond in the grid pond 1 It conveyed using the screw conveyor being installed on workbench, transport outward disposition.
Optionally, setting PH on-line detectors, acid-base modifier delivery device, temperature-detecting device in the regulating reservoir 2 And air stirrer.Wherein, temperature-detecting device for detecting the temperature in regulating reservoir in real time;Acid-base modifier delivery device Can according to PH on-line detectors be arranged PH preset ranges launch acid-base modifier automatically, by the PH of pending waste water adjust to PH preset ranges, air stirrer can tentatively cool down, and prevent the suspended matter in waste water from precipitating, ensure waste water quality uniformly, water Amount is stablized, and the load of subsequent processing is reduced.
Specifically, air stirrer includes the aerating pipelines being arranged in regulating reservoir and is arranged on the outside of regulating reservoir and exposure The roots blower of air pipe connection, acid-base modifier delivery device are diaphragm metering pump.Further, regulating reservoir 2 and primary sedimentation tank 4 Between be provided with cooling tower 3, cooling tower 3 can be used for cooling down to the water inlet of primary sedimentation tank 4 when summer and autumn temperature is high.
Optionally, high-precision cloth water regulator is arranged in the primary sedimentation tank, is evenly arranged, keeps away for the waste water to access Exempt from flow short circuit;
Optionally, primary sedimentation tank 4 carries out flocculation sediment to the waste water of entrance, and flocculant 1# is ferrous sulfate and polyacrylamide Amine;
Wherein, low speed pushing flow blender, composite filling, aerating pipelines connection under setting liquid in the ponds the high load capacity O/A/0 5 Magnetic-suspension high-speed centrifugal blower.
Optionally, the corrosion resistant filler support of setting in the ponds high load capacity O/A/0 5;Setting is acidproof in the ponds high load capacity O/A/0 5 Alkali, ageing-resistant, large specific surface area, composite filling light-weight, biomembrane adhesion property is good, oxygen transfer is efficient;High load capacity O/ Sludge reflux pipeline is arranged in the ponds A/0 5;Setting is corrosion-resistant in the ponds high load capacity O/A/0 5, oxygen-transfer efficiency is high, is not easy to plug, conveniently tears open That unloads maintenance promotes tube aerator;5 air pipe lines connection in the ponds high load capacity O/A/0 is energy-efficient, low noise, intelligent control, Reduced-maintenance magnetic-suspension high-speed centrifugal blower.
The ponds high load capacity O/A/0 5 combine the processing advantage of traditional activated sludge process and biofilm, in the ponds high load capacity O/A/0 Interior setting filler makes microorganism attachment filler surface form biomembrane or be suspended in growth and breeding between filler, in the ponds high load capacity A In, macromoleculars, the heterocycle type organics such as dyestuff, PVA slurries in water are resolved into low molecule organic matter using anaerobic bacteria, simultaneously The coloured groups that dye molecule is destroyed using the hydrolysis of anaerobic bacteria, improve the biodegradability of waste water, then in the ponds high load capacity O In anaerobic bacteria institute decomposition product is degraded by the assimilation and dissimilation of aerobic bacteria, to reach decoloration, the big portion of removal Divide the purpose of organic matter.
Further, DO dissolved oxygen meters are provided in the ponds high load capacity O/A/0 5, monitor the dissolved oxygen content of waste water in real time.
Optionally, separation is fixed to the waste water of entrance in secondary settling tank 6, and base sludge is drawn by pump suction type mud scraper To mud drainage slot, later using gravity stream to the ponds high load capacity O/A/O or sludge concentration tank.6 sludge reflux of secondary settling tank is to high load capacity The ponds O/A/0 5 can maintain the sludge concentration in the ponds high load capacity O/A/0 5, entire biochemical process is made to run at high load conditions, processing Effect stability, power consumption is low, and anti impulsion load is high, and no sludge bulking, pool capacity is small, and floor space is small.
Collecting-tank 7 is used to collect the supernatant after secondary settling tank 6 is separated by solid-liquid separation, and the water outlet of collecting-tank 7 is followed by being pumped into waterpower Ring clarifying basin 8.
Circulatior clarifier 8 is used to carry out waterpower mixing, flocculation, precipitation to waste water, removes suspended matter, glue in waste water Body substance etc., makes water be clarified.Specifically, being additionally provided on pressure pipeline between collecting-tank 7 and circulatior clarifier 8 Flocculant 2# delivery devices, flocculant 2# enter circulatior clarifier 8 after being mixed in the duct with waste water, further, wadding Solidifying agent 2# is aluminium polychloride and polyacrylamide;
Valveless filtering pool 9 carries out sand filtration processing to the waste water of entrance, further removes the molecule in waste water, suspended matter Deng.
Oxidation pond 10 is discharged the mixed waste water of waterpower for storing hydrogen peroxide with valveless filtering pool 9, specifically, valveless filtering pool Pipeline between 9 and oxidation pond 10 is provided with oxidant delivery device, after oxidant is mixed with waste water in the duct, into oxidation Pond 10 carries out oxygenolysis to waste water.
Further, oxidant is hydrogen peroxide, using the strong oxidizing property of hydrogen peroxide, organic matter in oxygenolysis waste water and Other reducing substances reduce the load of consequent activities charcoal adsorption tower, compared with prior art in ozone, sodium hypochlorite etc. it is other Oxidant, hydrogen peroxide have many advantages, such as that oxidation efficiency is high, reaction speed is fast, non-secondary pollution, residue do not interfere COD to measure.
Activated carbon adsorber 11 is used to carry out materialization advanced treating to waste water, is arranged in activated carbon adsorber 11 active Charcoal, specifically, activated carbon is cocoanut active charcoal, using the pore structure and huge specific surface area of cocoanut active charcoal prosperity to useless Remaining organic matter, colloid, suspended matter, chromophoric group, dyestuff, peculiar smell etc. are adsorbed in water, while the hydrogen peroxide in waste water Play synergistic effect, to be adsorbed in the further chain rupture of the organic matter of difficult for biological degradation of activated carbon surface or internal voids, open loop, Oxidation, is converted into small-molecule substance, and in backwash, these polluters are discharged with flushing waste water, to delay cocoanut active charcoal Adsorption saturation speed, increase the service life of activated carbon adsorber.
Reuse tank 12 can be used as the backwash water source of activated carbon adsorber, can return for waste water up to standard after collection processing For industrial waters such as middle dark cotton, the colouring workshop section of yarn, final finishing workshop sections.
Further, described device further includes sludge treating block, and sludge treating block includes sludge concentration tank 13, sludge Quenched pond 14 and enhanced chamber-type press filter 15, sludge concentration tank 13 are clarified with primary sedimentation tank 4, secondary settling tank 6 and Hydraulic Circulation respectively Pond 8 connects, for recycling the sludge in primary sedimentation tank 4, secondary settling tank 6 and circulatior clarifier 8;The quenched pond 14 of sludge and sludge are dense Contracting pond 13 connects, and sludge carries out modifier treatment after entering the quenched pond of sludge 14;Enhanced chamber-type press filter 15 and the quenched pond of sludge 14 connections form dry mud for carrying out dehydration to the sludge after quenched.
Specifically, the quenched pond 14 of sludge is quenched to sludge progress by the way that calcium oxide and flocculant 3# is added, and further, wadding Solidifying agent 3# is polyacrylamide.
Wherein, the supernatant, enhanced of the backwashing water of valveless filtering pool 9 and activated carbon adsorber 11, sludge concentration tank 13 The filtrate of chamber-type press filter 15 returns to regulating reservoir 2 and is further processed.
The course of work of device of the present invention includes:Production waste water stream enters grid pond 1, larger outstanding through mechanical grille removal Regulating reservoir 2 is flowed into after float, it is preliminary to cool down, and adjust pH, water quality and water.Waste water is pumped into primary sedimentation tank 4 and (works as waste water temperature later Also need to flow into primary sedimentation tank 4 again after cooling tower 3 further cooling when high) flocculant 1# flocculations, precipitation is added, reduce SS, COD Deng.4 supernatant of primary sedimentation tank enters the ponds high load capacity O/A/O 5 and carries out biochemical treatment, and most of organic matter of degrading, later water outlet enters Secondary settling tank 6 is separated by solid-liquid separation, and second pond supernatant flows into collecting-tank 7, and Hydraulic Circulation is pumped into after being mixed later with flocculant 2# Clarifying basin 8 enters valveless filtering pool 9 after waste water clarification, and inflow oxidation is mixed with hydrogen peroxide after removing most of colloid and suspended matter Pond 10.Waste water is pumped into activated carbon adsorber 11 later, further absorption, the organic matter in oxidized waste water, colloid, suspended matter, hair Color base group and peculiar smell etc., later water outlet flow into reuse tank 12, and the colouring work for being back to middle dark cotton, yarn is finally promoted with pump The industrial waters such as section, final finishing workshop section, also can be used as the backwash water source of activated carbon adsorber.
The main water quality treatment of device of the present invention is as shown in table 1, and present apparatus effluent index reaches or excellent as seen from Table 1 In《Textile dyeing and finishing industrial reuse water water quality》(FZ/T 01107-2011) index of correlation, meets the water quality requirement of recycle-water.
Table 1
Water quality CODcr(mg/L) BOD5(mg/L) SS(mg/L) Coloration (again) pH
Influent quality 3000 600 450 800 8-11
Effluent quality 45 15 10 10 6-8.5
Reuse standard ≤50 -- ≤30 ≤25 6.5-8.5
The beneficial effects of the present invention are:Device combination coagulant sedimentation of the present invention, traditional activated sludge process, biology The advantage of the treatment technologies such as embrane method, advanced oxidation processes, physisorphtion, have treatment effeciency is high, floor space is small, it is at low cost, The advantages that easy to operate easily controllable, can carry out advanced treating to textile dyeing waste water, and effluent quality reaches after processing Or it is better than《Textile dyeing and finishing industrial reuse water water quality》(FZ/T 01107-2011) index of correlation, can be back to middle dark cotton, The water such as the colouring workshop section of yarn, final finishing workshop section is conducive to save water resource and the energy, and guarantee environment safety realizes printing and dyeing The sustainable development of industry.The concrete analysis of present treatment system is as follows:
1, the present invention uses the materializing strategy technique of " grid pond+regulating reservoir+cooling tower+primary sedimentation tank ", removal larger first Suspended matter adjusts waste water quality, water, reduces water temperature, and keeps insoluble or indissoluble dyestuff particle etc. in waste water heavy by flocculating It forms sediment and removes, reduce subsequent processing load.
2, the biochemical processing process for using " ponds high load capacity O/A/O+secondary settling tank " later, in conjunction with traditional activated sludge process and life Composite filling is arranged in the ponds high load capacity O/A/O in the processing advantage of object embrane method, and microorganism attachment filler surface is made to form biomembrane Or it is suspended in growth and breeding between filler.In the ponds high load capacity A, using anaerobic bacteria by the macromoleculars such as dyestuff, PVA slurries in water, Heterocycle type organic resolves into low molecule organic matter, while having color base using the hydrolysis of anaerobic bacteria destruction dye molecule Group, improves the biodegradability of waste water, is then decomposed anaerobic bacteria by the assimilation and dissimilation of aerobic bacteria in the ponds high load capacity O Product is degraded, to achieve the purpose that the most of organic matter of decoloration, removal.The sludge to be flowed back by secondary settling tank remains high The sludge concentration in the ponds load O/A/0, makes entire biochemical process run at high load conditions, and treatment effect is stablized, power consumption Low, anti impulsion load is high, and no sludge bulking, pool capacity is small, and floor space is small.
3, the materializing strategy technique of " collecting-tank+circulatior clarifier+valveless filtering pool " is used later, it is clear in Hydraulic Circulation Clear pond removes the impurity such as suspended matter, the colloidal solid in waste water, water is made to be clarified by waterpower mixing, flocculation, precipitation, it Enter valveless filtering pool afterwards and carry out sand filtration processing, further removes the molecule in waste water, suspended matter etc..
4, the materializing strategy technique of " oxidation pond+activated carbon adsorber+reuse tank ", valveless filtering pool water outlet is used to pass through later Hydraulic mixer enters oxidation pond after being mixed with hydrogen peroxide, organic in oxygenolysis waste water using the strong oxidizing property of hydrogen peroxide Object and other reducing substances reduce the load of consequent activities charcoal adsorption tower.Compared to other oxidants such as ozone, sodium hypochlorite, Hydrogen peroxide has many advantages, such as that oxidation efficiency is high, reaction speed is fast, non-secondary pollution, residue do not interfere COD to measure.Waste water later Into activated carbon adsorber, have to remaining in waste water using the pore structure and huge specific surface area of cocoanut active charcoal prosperity Machine object, colloid, suspended matter, chromophoric group, dyestuff, peculiar smell etc. are adsorbed.The hydrogen peroxide in waste water plays synergistic effect simultaneously, The further chain rupture of organic matter, open loop, the oxidation of difficult for biological degradation to being adsorbed in activated carbon surface or internal voids, are converted into small Molecular substance, in backwash, these polluters are discharged into regulating reservoir reprocessing with flushing waste water, to delay cocoanut active charcoal Adsorption saturation speed, increase the service life of activated carbon adsorber.The water outlet of activated carbon adsorber is discharged into reuse tank, can reuse In production, as the backwash water source of activated carbon adsorber.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.
Embodiment two
The present invention also provides a kind of textile treatment of dyeing wastewater reuse method, the method includes:
Step S1:Materialized pretreatment is carried out to Cotton Spinning Fibre Dyeing Wastewater, with regulating water quality, water and water temperature, is removed in waste water Particle larger suspended matter and floating material;
Step S2:Biochemical treatment is carried out to the water outlet of the materialized pretreatment unit, reduces COD (COD), BOD (biochemical oxygen demand (BOD)), ammonia nitrogen isoconcentration;
Step S3:The biochemical treatment unit is discharged and carries out materializing strategy, further removes suspended matter, the glue in waste water Body substance, organic matter, decoloration etc.;
Step S4:Materialization advanced treating is carried out to the water outlet of physicochemical treatment unit, oxygen is carried out to residual contaminants therein Change is decomposed, is adsorbed, decolourizing, going to eliminate the unusual smell, and is thoroughly purified water.
Optionally, further include in the step S1:
The pH value of the Cotton Spinning Fibre Dyeing Wastewater is adjusted to 8.5-10, while air is carried out to the Cotton Spinning Fibre Dyeing Wastewater and is stirred It mixes, cool down, uniform water quality and water.
Optionally, further include in the step S1:
Ferrous sulfate is added in the Cotton Spinning Fibre Dyeing Wastewater and polyacrylamide carries out flocculation sediment, wherein sulfuric acid is sub- The quality that iron is added is the 2 ‰ -3 ‰ of wastewater quality, and the quality that polyacrylamide is added is the 0.1 ‰ -0.2 ‰ of wastewater quality.
Optionally, further include in the step S3:
Aluminium polychloride is added in the Cotton Spinning Fibre Dyeing Wastewater and polyacrylamide carries out flocculation sediment, wherein polymerization The quality that aluminium chloride is added is the 1 ‰ -2 ‰ of wastewater quality, and the quality that polyacrylamide is added is the 0.05 ‰-of wastewater quality 0.1‰。
Illustratively, biological to the hardly possible for being adsorbed in activated carbon surface or internal voids using hydrogen peroxide in the step S4 The further chain rupture of organic matter, open loop, the oxidation of degradation, the quality that hydrogen peroxide is added are the 0.5 ‰ -1.5 ‰ of wastewater quality.
Specifically, the method is implemented by the described device in embodiment one in another embodiment, the side Method includes the following steps:
(1), waste water enters regulating reservoir after grid pond removes floating material and suspended matter, by the way that acid adjust is added in regulating reservoir Section agent adjusts the pH value of waste water to 8.5-10, while carrying out air stirring, cooling, uniform water quality to the Cotton Spinning Fibre Dyeing Wastewater And water;
(2), the waste water after adjusting pond after the adjustment is sent into primary sedimentation tank, and ferrous sulfate is added and polyacrylamide is wadded a quilt with cotton Retrogradation is formed sediment, wherein the quality that ferrous sulfate is added is the 2 ‰ -3 ‰ of wastewater quality, and the quality that polyacrylamide is added is waste water The 0.1 ‰ -0.2 ‰ of quality;It is then fed into the ponds high load capacity O/A/O, carries out biochemical treatment, the organic matter in degrading waste water,
(3), the waste water after biochemical treatment is sent into secondary settling tank to be separated by solid-liquid separation, the supernatant after separation enters collecting-tank Storage mixes with aluminium polychloride and polyacrylamide waterpower be sent into clarifying treatment in circulatior clarifier later, wherein poly- It is the 1 ‰ -2 ‰ of wastewater quality to close the quality that aluminium chloride is added, and the quality that polyacrylamide is added is the 0.05 ‰-of wastewater quality 0.1‰;
(4), the waste water after clarification is sent into valveless filtering pool and carries out sand filtration processing, remove oil removal and colloid;
(5), sand filtration treated waste water is mixed with hydrogen peroxide and is sent into oxidation pond, in waste water partial organic substances and its Its reducing substances carries out oxygenolysis, and the quality that hydrogen peroxide is added is the 0.5 ‰ -1.5 ‰ of wastewater quality;
(6), the waste water after oxidation is sent into activated carbon absorption tower, oxygenolysis is carried out to residual contaminants therein, is inhaled It is attached, decolourize, go to eliminate the unusual smell, it is up to standard after reuse.
The method of the invention combination coagulant sedimentation, traditional activated sludge process, biofilm, advanced oxidation processes, physics The advantage of the treatment technologies such as absorption method, has that treatment effeciency is high, floor space is small, at low cost, easy to operate easily controllable etc. excellent Point can carry out advanced treating to textile dyeing waste water, and effluent quality reaches or is better than after processing《Textile dyeing and finishing industry is returned With water water quality》(FZ/T 01107-2011) index of correlation can be back to middle dark cotton, the colouring workshop section of yarn, final finishing The water such as workshop section is conducive to save water resource and the energy, and guarantee environment safety realizes the sustainable development of dyeing.
The method of the invention is further described with reference to following example.
Example 1
A kind for the treatment of for reuse method of textile dyeing waste water, includes the following steps:
(1), waste water enters regulating reservoir 2 after grid pond 1 removes floating material and suspended matter, by the way that sulphur is added in regulating reservoir 2 Acid adjusts the pH value of waste water to 9.2, while carrying out air stirring to waste water;
(2), the waste water after adjusting pond 2 after the adjustment is sent into primary sedimentation tank 4, and ferrous sulfate and polyacrylamide progress is added Flocculation sediment is then fed into the ponds high load capacity O/A/O 5, carries out biochemical treatment, the organic matter in degrading waste water, wherein ferrous sulfate The quality of addition is the 2 ‰ of wastewater quality, and the quality that polyacrylamide is added is the 0.1 ‰ of wastewater quality;
(3), the waste water after biochemical treatment is sent into secondary settling tank 6 to be separated by solid-liquid separation, the supernatant after separation, which enters, to catchment Pond 7 stores, and is mixed with aluminium polychloride and polyacrylamide waterpower be sent into clarifying treatment in circulatior clarifier 8 later, In, the quality that aluminium polychloride is added is the 1 ‰ of wastewater quality, and the quality that polyacrylamide is added is wastewater quality 0.05‰;
(4), the waste water after clarification is sent into valveless filtering pool 9 and carries out sand filtration processing, remove oil removal and colloid;
(5), sand filtration treated waste water is mixed with hydrogen peroxide and is sent into oxidation pond 10, to organic matter in waste water and other Reducing substances carry out oxygenolysis, wherein the quality of the hydrogen peroxide of addition is the 1 ‰ of wastewater quality;
(6), by after oxidation waste water be sent into activated carbon absorption tower 11, to residual contaminants therein carry out oxygenolysis, It adsorbs, decolourize, going to eliminate the unusual smell, rear reuse up to standard.
Treated waste water is detected, following experimental data is obtained:
Water quality CODcr(mg/L) BOD5(mg/L) SS(mg/L) Coloration (again) pH
Influent quality 2500 473 386 640 10.3
Effluent quality 41 12 9 9 7.5
Reuse standard ≤50 -- ≤30 ≤25 6.5-8.5
By above table it is found that this system effluent index reaches or is better than《Textile dyeing and finishing industrial reuse water water quality》(FZ/ T 01107-2011) index of correlation, meet the water quality requirement of recycle-water.
Example 2
A kind for the treatment of for reuse method of textile dyeing waste water, includes the following steps:
(1), waste water enters regulating reservoir 2 after grid pond 1 removes floating material and suspended matter, by the way that sulphur is added in regulating reservoir 2 Acid adjusts the pH value of waste water to 10.1, while carrying out air stirring to waste water;
(2), the waste water after adjusting pond 2 after the adjustment is sent into primary sedimentation tank 4, and ferrous sulfate and polyacrylamide progress is added Flocculation sediment is then fed into the ponds high load capacity O/A/O 5, carries out biochemical treatment, the organic matter in degrading waste water, wherein ferrous sulfate The quality of addition is the 2.5 ‰ of wastewater quality, and the quality that polyacrylamide is added is the 0.15 ‰ of wastewater quality;
(3), the waste water after biochemical treatment is sent into secondary settling tank 6 to be separated by solid-liquid separation, the supernatant after separation, which enters, to catchment Pond 7 stores, and is mixed with aluminium polychloride and polyacrylamide waterpower be sent into clarifying treatment in circulatior clarifier 8 later, In, the quality that aluminium polychloride is added is the 1.5 ‰ of wastewater quality, and the quality that polyacrylamide is added is wastewater quality 0.08‰;
(4), the waste water after clarification is sent into valveless filtering pool 9 and carries out sand filtration processing, remove oil removal and colloid;
(5), sand filtration treated waste water is mixed with hydrogen peroxide and is sent into oxidation pond 10, to organic matter in waste water and other Reducing substances carry out oxygenolysis, wherein the quality of the hydrogen peroxide of addition is the 1.5 ‰ of wastewater quality;
(6), by after oxidation waste water be sent into activated carbon absorption tower 11, to residual contaminants therein carry out oxygenolysis, It adsorbs, decolourize, going to eliminate the unusual smell, rear reuse up to standard.
Treated waste water is detected, following experimental data is obtained:
Water quality CODcr(mg/L) BOD5(mg/L) SS(mg/L) Coloration (again) pH
Influent quality 2874 585 466 780 11.0
Effluent quality 37 13 10 7 7.7
Reuse standard ≤50 -- ≤30 ≤25 6.5-8.5
By above table it is found that this system effluent index reaches or is better than《Textile dyeing and finishing industrial reuse water water quality》(FZ/ T 01107-2011) index of correlation, meet the water quality requirement of recycle-water.
Example 3
A kind for the treatment of for reuse method of textile dyeing waste water, includes the following steps:
(1), waste water enters regulating reservoir 2 after grid pond 1 removes floating material and suspended matter, by the way that sulphur is added in regulating reservoir 2 Acid adjusts the pH value of waste water to 9.4, while carrying out air stirring to waste water;
(2), the waste water after adjusting pond 2 after the adjustment is sent into primary sedimentation tank 4, and ferrous sulfate and polyacrylamide progress is added Flocculation sediment is then fed into the ponds high load capacity O/A/O 5, carries out biochemical treatment, the organic matter in degrading waste water, wherein ferrous sulfate The quality of addition is the 3 ‰ of wastewater quality, and the quality that polyacrylamide is added is the 0.2 ‰ of wastewater quality;
(3), the waste water after biochemical treatment is sent into secondary settling tank 6 to be separated by solid-liquid separation, the supernatant after separation, which enters, to catchment Pond 7 stores, and is mixed with aluminium polychloride and polyacrylamide waterpower be sent into clarifying treatment in circulatior clarifier 8 later, In, the quality that aluminium polychloride is added is the 2 ‰ of wastewater quality, and the quality that polyacrylamide is added is the 0.1 ‰ of wastewater quality;
(4), the waste water after clarification is sent into valveless filtering pool 9 and carries out sand filtration processing, remove oil removal and colloid;
(5), sand filtration treated waste water is mixed with hydrogen peroxide and is sent into oxidation pond 10, to organic matter in waste water and other Reducing substances carry out oxygenolysis, wherein the quality of the hydrogen peroxide of addition is the 1.5 ‰ of wastewater quality;
(6), by after oxidation waste water be sent into activated carbon absorption tower 11, to residual contaminants therein carry out oxygenolysis, It adsorbs, decolourize, going to eliminate the unusual smell, rear reuse up to standard.
Treated waste water is detected, following experimental data is obtained:
Water quality CODcr(mg/L) BOD5(mg/L) SS(mg/L) Coloration (again) pH
Influent quality 2951 590 587 750 10.0
Effluent quality 42 14 9 9 7.9
Reuse standard ≤50 -- ≤30 ≤25 6.5-8.5
By above table it is found that this system effluent index reaches or is better than《Textile dyeing and finishing industrial reuse water water quality》(FZ/ T 01107-2011) index of correlation, meet the water quality requirement of recycle-water.
The present invention is illustrated by above-described embodiment, but it is to be understood that, above-described embodiment is only intended to The purpose of citing and explanation, and be not intended to limit the invention within the scope of described embodiment.In addition people in the art It is understood that the invention is not limited in above-described embodiment, introduction according to the present invention can also be made more kinds of member Variants and modifications, these variants and modifications are all fallen within scope of the present invention.Protection scope of the present invention by The appended claims and its equivalent scope are defined.

Claims (19)

1. a kind of Cotton Spinning Fibre Dyeing Wastewater treatment for reuse device, which is characterized in that described device includes:
Materialized pretreatment unit, the materialized pretreatment unit be used for regulating water quality, water and water temperature, remove waste water in particle compared with Big suspended matter and floating material avoids that promotion pumping unit is resulted in blockage and worn, reduces subsequent technique and handle load;
Biochemical treatment unit, the biochemical treatment unit is connected to the materialized pretreatment unit, pre- for receiving the materialization The water outlet of processing unit, and using the pollutant in the metabolism degrading waste water of microorganism, reduction COD, biochemistry need Oxygen amount and ammonia nitrogen concentration;
Physicochemical treatment unit, the physicochemical treatment unit is connected to the biochemical treatment unit, for receiving the biochemical treatment The water outlet of unit, and further remove the suspended matter in waste water, colloidal substance, organic matter and decolourize;
Materialization advanced treatment unit, the materialization advanced treatment unit are connected to the physicochemical treatment unit, described for receiving The water outlet of physicochemical treatment unit, and oxygenolysis is carried out to residual contaminants therein, absorption, decolourizes, go to eliminate the unusual smell, it is thoroughly net Change water quality.
2. the apparatus according to claim 1, which is characterized in that the materialized pretreatment unit includes:
Grid pond, the grid pond is for removing particle larger floating material and suspended matter;
Regulating reservoir, the regulating reservoir are connected to the grid pond, and the water outlet for receiving the grid pond simultaneously tentatively cools down, adjusts PH, water quality and water;
Primary sedimentation tank, the primary sedimentation tank are connected to the regulating reservoir, and the water outlet for receiving the regulating reservoir simultaneously carries out flocculation sediment, Remove oil removal, colloidal substance and organic matter.
3. the apparatus of claim 2, which is characterized in that mechanical grille is provided in the grid pond, in the lattice Grid pond top is provided with workbench, and the grid slag that the mechanical grille intercepts utilizes the screw conveyor being installed on workbench Conveyed and/or transported outward disposition.
4. the apparatus of claim 2, which is characterized in that be additionally provided between the regulating reservoir and the primary sedimentation tank cold But tower, it is described it is used for cooling tower when summer and autumn, waste water temperature was high to enter the primary sedimentation tank in waste water cool down.
5. the apparatus of claim 2, which is characterized in that the regulating reservoir includes:
PH on-line detectors, for detecting the pH in the regulating reservoir;
Temperature-detecting device, for detecting the temperature in the regulating reservoir in real time;
Acid-base modifier delivery device, the pH preset ranges for being arranged according to the pH on-line detectors launch soda acid tune automatically Agent is saved, the pH of pending waste water is adjusted to pH preset ranges;
Air stirrer, for carrying out aeration agitation to waste water, preliminary cooling, uniform water quality, water simultaneously prevent in waste water Suspended matter precipitates.
6. the apparatus of claim 2, which is characterized in that the primary sedimentation tank includes:
High-precision cloth water regulator, is evenly arranged for the waste water to access, avoids flow short-circuit.
7. the apparatus according to claim 1, which is characterized in that the biochemical treatment unit includes:
The ponds high load capacity O/A/O, for further degrading to the organic matter in waste water, reducing chemistry needs in the ponds the high load capacity O/A/O The concentration of oxygen amount, biochemical oxygen demand (BOD) and ammonia nitrogen;
Secondary settling tank, the secondary settling tank are connected to the ponds the high load capacity O/A/O, the water outlet for receiving the ponds the high load capacity O/A/O And be separated by solid-liquid separation, while being back in the ponds the high load capacity O/A/O while obtained sludge part will be separated by solid-liquid separation.
8. device according to claim 7, which is characterized in that the ponds the high load capacity O/A/O include:
Low speed pushing flow blender under liquid, the sludge for being stirred at reflux provide condition for denitrification denitrogenation;
Composite filling, for for biomembrane attachment or suspension growth carrier is provided;
Magnetic-suspension high-speed centrifugal blower, for being supplied oxygen for the ponds the high load capacity O/A/O.
9. device according to claim 7, which is characterized in that the secondary settling tank includes:
Pump suction type inhales mud scraper, and the sludge for drawing the secondary settling tank bottom precipitation is flow to using gravity later to sludge sump The ponds high load capacity O/A/O or sludge concentration tank.
10. device according to claim 7, which is characterized in that the physicochemical treatment unit includes:
Collecting-tank, the collecting-tank are connected to the secondary settling tank, the water outlet for storing the secondary settling tank;
Circulatior clarifier, the circulatior clarifier are connected to the collecting-tank, for receiving going out for the collecting-tank Water, and by waterpower mixing, flocculation, precipitation, remove suspended matter, the colloidal substance in waste water, water is made to be clarified;
Valveless filtering pool, the valveless filtering pool are connected to the circulatior clarifier, for receiving the circulatior clarifier Water outlet, handled by sand filtration, further remove waste water in molecule, suspended matter.
11. the apparatus according to claim 1, which is characterized in that the materialization advanced treatment unit includes:
Oxidation pond, the oxidation pond are connected to valveless filtering pool, are mixed with valveless filtering pool water outlet waterpower for storing hydrogen peroxide Waste water afterwards, and the partial organic substances in oxygenolysis waste water and reducing substances reduce the load of consequent activities charcoal adsorption tower;
Activated carbon adsorber, the activated carbon adsorber are connected to the oxidation pond, the water outlet for receiving the oxidation pond, and Remaining organic matter, colloid, suspended matter, chromophoric group, dyestuff, peculiar smell in waste water are adsorbed by activated carbon, while double Oxygen water is to the further chain rupture of the organic matter for being adsorbed in the difficult for biological degradation of activated carbon surface or internal voids, open loop, oxidation;
Reuse tank, the reuse tank are connected to the activated carbon adsorber, the water outlet for receiving the activated carbon adsorber, are made For the backwash water source of activated carbon adsorber, it is back to middle dark cotton, the colouring workshop section of yarn, final finishing workshop section production use Water.
12. according to the devices described in claim 11, which is characterized in that use cocoanut active charcoal in the activated carbon adsorber.
13. the apparatus according to claim 1, which is characterized in that described device further includes sludge treating block, the sludge Processing unit includes sludge concentration tank, the quenched pond of sludge and enhanced chamber-type press filter;
Wherein, the sludge concentration tank respectively in the materialized pretreatment unit primary sedimentation tank, in the biochemical treatment unit Secondary settling tank, the circulatior clarifier connection in the physicochemical treatment unit, for recycling the primary sedimentation tank, the secondary settling tank With the sludge in the circulatior clarifier;
The quenched pond of sludge is connect with the sludge concentration tank, and sludge carries out modifier treatment after entering the quenched pond of sludge;
The enhanced chamber-type press filter is connect with the quenched pond of the sludge, for the sludge after quenched carry out dehydration formed it is dry Mud.
14. the apparatus according to claim 1, which is characterized in that described device further includes control unit, described control unit For combining online monitoring instrument or display instrument, waste water in processing procedure is monitored and data processing, to controlled equipment It is automatically or manually controlled.
15. a kind of Cotton Spinning Fibre Dyeing Wastewater treatment for reuse method, which is characterized in that the method includes:
Step S1:Materialized pretreatment is carried out to Cotton Spinning Fibre Dyeing Wastewater, with regulating water quality, water and water temperature, removes particle in waste water Larger suspended matter and floating material;
Step S2:Biochemical treatment is carried out to the water outlet of the materialized pretreatment unit, reduce COD, biochemical oxygen demand (BOD), Ammonia nitrogen concentration;
Step S3:The biochemical treatment unit is discharged and carries out materializing strategy, further removes suspended matter, the colloid substances in waste water It matter, organic matter and decolourizes;
Step S4:Materialization advanced treating is carried out to the water outlet of physicochemical treatment unit, oxidation point is carried out to residual contaminants therein It solves, adsorb, decolourizing, going to eliminate the unusual smell, thoroughly purifying water.
16. according to the method for claim 15, which is characterized in that further include in the step S1:
The pH value of the Cotton Spinning Fibre Dyeing Wastewater is adjusted to 8.5-10, while air stirring, drop are carried out to the Cotton Spinning Fibre Dyeing Wastewater Warm, uniform water quality and water.
17. according to the method for claim 15, which is characterized in that further include in the step S1:
Ferrous sulfate is added in the Cotton Spinning Fibre Dyeing Wastewater and polyacrylamide carries out flocculation sediment, wherein ferrous sulfate adds The quality entered is the 2 ‰ -3 ‰ of wastewater quality, and the quality that polyacrylamide is added is the 0.1 ‰ -0.2 ‰ of wastewater quality.
18. according to the method for claim 15, which is characterized in that further include in the step S3:
Aluminium polychloride is added in the Cotton Spinning Fibre Dyeing Wastewater and polyacrylamide carries out flocculation sediment, wherein polyaluminium The quality that aluminium is added is the 1 ‰ -2 ‰ of wastewater quality, and the quality that polyacrylamide is added is the 0.05 ‰ -0.1 ‰ of wastewater quality.
19. according to the method for claim 15, which is characterized in that using hydrogen peroxide to being adsorbed in work in the step S4 Property carbon surface or internal voids difficult for biological degradation the further chain rupture of organic matter, open loop, oxidation, hydrogen peroxide be added quality be The 0.5 ‰ -1.5 ‰ of wastewater quality.
CN201810639170.2A 2018-06-20 2018-06-20 A kind of Cotton Spinning Fibre Dyeing Wastewater treatment for reuse device and reuse method Pending CN108569829A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109836019A (en) * 2019-04-03 2019-06-04 平湖市三禾染整有限公司 A kind of yarn dyeing and finishing wastewater processing equipment and its treatment process
CN111018232A (en) * 2019-08-08 2020-04-17 南通鑫铭环保技术有限公司 Detection method for wastewater treatment based on textile printing and dyeing
CN112939649A (en) * 2021-02-01 2021-06-11 北京建筑大学 Integrated integrated wet garbage in-situ recycling treatment system and treatment method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109836019A (en) * 2019-04-03 2019-06-04 平湖市三禾染整有限公司 A kind of yarn dyeing and finishing wastewater processing equipment and its treatment process
CN111018232A (en) * 2019-08-08 2020-04-17 南通鑫铭环保技术有限公司 Detection method for wastewater treatment based on textile printing and dyeing
CN112939649A (en) * 2021-02-01 2021-06-11 北京建筑大学 Integrated integrated wet garbage in-situ recycling treatment system and treatment method

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