CN106746339A - The processing method of dyeing waste water - Google Patents

The processing method of dyeing waste water Download PDF

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Publication number
CN106746339A
CN106746339A CN201611263476.XA CN201611263476A CN106746339A CN 106746339 A CN106746339 A CN 106746339A CN 201611263476 A CN201611263476 A CN 201611263476A CN 106746339 A CN106746339 A CN 106746339A
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CN
China
Prior art keywords
waste water
treatment
sedimentation basin
anode
electric flocculation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611263476.XA
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Chinese (zh)
Inventor
龙炳清
公培宝
姜鹏飞
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Sichuan Normal University
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Sichuan Normal University
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Filing date
Publication date
Application filed by Sichuan Normal University filed Critical Sichuan Normal University
Priority to CN201611263476.XA priority Critical patent/CN106746339A/en
Publication of CN106746339A publication Critical patent/CN106746339A/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
    • C02F2003/003—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/308—Dyes; Colorants; Fluorescent agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/40—Organic compounds containing sulfur
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/04—Flow arrangements
    • C02F2301/046—Recirculation with an external loop
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/28—Anaerobic digestion processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The processing method of the dyeing waste water that the present invention that the present invention is introduced is introduced includes electric flocculation, CO2The operations such as neutralization, hydrolysis acidification, the treatment of aerobic and biological filtering tower combined working, the COD and BOD of the waste water after treatment can stably reaching standard discharges.

Description

The processing method of dyeing waste water
Technical field
The present invention relates to a kind of processing method of dyeing waste water.
Background technology
Printing and dyeing are the significant process of textile industry.By printing and dyeing, the pattern of textile can be increased, improve the life of the mankind Quality.In dyeing process, dyeing waste water is inevitably resulted from, the COD of the waste waterCrConcentration is high, and colourity is big, and basicity is high, If being directly discharged into environment will cause severe contamination to environment.The processing method of current dyeing waste water mainly has biochemistry treatment side Method, physical-chemical process and method of chemical treatment.These disposal methods are relatively costly, and effect is unstable, it is difficult to which stably reaching standard is arranged Put.Biochemical process produces a large amount of H due to sulfuric acid to be added in anaerobism or Hydrolysis Acidification2S, causes more serious two Secondary pollution, further, since a large amount of SO4 2-Presence, suppress microorganism growth, have a strong impact on the chemically treated effect of wastewater biological Really.The treatment method of printing and dying wastewater that development cost is low, high treating effect, secondary pollution are small has larger practical value.
The content of the invention
For the problem of current treatment method of printing and dying wastewater, the purpose of the present invention is to find high treating effect, processing cost The small treatment method of printing and dying wastewater of low, secondary pollution, it is characterised in that the dyeing waste water after adjusted pond is adjusted introduces electricity wadding Solidifying groove carries out electric flocculation.Using iron plate as soluble anode material, cathode material is stainless steel plate to electric flocculation, and anode thickness is 10mm~50mm, cathode thickness is 1mm~5mm, and the clear distance between anode and negative electrode is 10mm~30mm.The electric current of electric flocculation Density is 100A/m2~300A/m2, the waste water residence time between the anode and cathode is for after 5min~20min. electric flocculations Waste water is precipitated into sedimentation basin, and the sedimentation time is 1h~3h.Sediment to sedimentation basin is filtered, and filter residue is made dangerous Disposition of solid waste.The supernatant of waste water and sedimentation basin after filtering uses CO in the lump2（CO2Can be industrial CO2, or Mineral decompose the CO for producing2, fuel combustion produce CO2）Its pH value is adjusted to sending hydrolysis acidification pool after 6~8.Waste water is in hydrolysis Normal temperature stops 6h~10h in acidification pool.Waste water after hydrolysis acidification is into the treatment of biology aerobic pond normal temperature, Aerobic Process for Treatment time 4h~10h.Waste water after Aerobic Process for Treatment is precipitated into sedimentation basin, and the sedimentation time is 1h~3h.To the sediment of sedimentation basin Filtered, filter residue makees dangerous disposition of solid waste, filtrate returns to Aerobic Pond.The supernatant of sedimentation basin send multi-layer biological filter tower Treatment.The filler of biological filtering tower combined working is activated carbon or porous ceramic grain, is 0.5m~1.2m per thickness degree, and gross thickness is 1m~3m.It is raw The dominant bacteria of thing filter tower is the red pseudomonas in photosynthetic bacteria（Rhodopseudomonas）.The hydraulic load of biological filtering tower combined working It is 50 m3/m2.d~150m3/m2.d.The standard water discharge discharge of biological filtering tower combined working, or send waste water advanced purifying device further to process Qualified discharge or reuse afterwards.
The object of the present invention is achieved like this, and in electric flocculation groove, anode generates Fe in the presence of electric current2+,Fe2+ With the OH in waste-rwater produced by dye printing-Reaction generation Fe (OH)2Flco, by the colloidal substance in dyeing waste water（Mainly dyestuff, It is macromolecular substances）Removal, is that subsequent biochemical treatment creates favorable conditions.Dyeing waste water adds CO2Afterwards, its pH is adjusted to full The requirement of sufficient subsequent biological treatment.Through the waste water of aforementioned processing in Hydrolysis Acidification, by the effect of microorganism, macromolecular Organic matter further becomes small organic molecule, is that more favorable condition is created in subsequent bio oxidation.Processed by biological oxidation, remained Remaining most of organic matters are removed.Waste water finally enters activated carbon or porous ceramic grain biological filtering tower combined working, particularly red in microorganism In the presence of pseudomonad, further organics removal, it is ensured that the waste water stably reaching standard discharge after treatment.If contained in waste water During persistent pollutant (containing phenyl ring, the organic matter of heterocycle), the waste water after Aerobic Process for Treatment also needs to send advanced waste treatment apparatus to enter After the treatment of one step, could stably reaching standard discharge.
Relative to existing method, outstanding advantages of the invention are to use CO2It is acidified instead of now widely used sulfuric acid Agent, does not introduce SO4 2-Ion, essentially eliminates generation H2The material base of S（Some dyes contain S）, so as to significantly reduce H2S's Pollution, while it also avoid SO4 2-To hydrolysis acidification and it is aerobic during microorganism inhibitory action, greatly improve biological treatment Efficiency；Boiler, the CO that fuel combustion is produced all are had in printing and dyeing mill2Waste gas can make full use of, and can not only reduce processing cost, and And carbon emission can be reduced；Making full use of the alkali in dyeing waste water carries out electric flocculation reaction, saves operating cost, useless after treatment Water energy stably reaching standard is discharged, with obvious economic benefit and environmental benefit.
Specific implementation method
Embodiment 1：Daily treatment 1m3Dyeing waste water（pH10.5、CODCr4600mg/L、BOD51300mg/L, colourity 350）, lead to Cross electric flocculation groove（Current density 100A/m2, the waste water residence time between the anode and cathode is 15min）, hydrolysis acidification （8h, through CO2PH after neutralization is 8）, aerobic biochemical（4h）With activated carbon biological filtering tower combined working（Hydraulic load is 100m3/m2.d, activity Charcoal gross thickness 1m）Treatment, effluent quality is CODCr53mg/L、BOD515mg/L, colourity 7.
Embodiment 2：Daily treatment 50m3Dyeing waste water（pH9.9、CODCr3900mg/L、BOD51180mg/L, colourity 300）, by electric flocculation groove（Current density 200A/m2, the waste water residence time between the anode and cathode is 5min）, hydrolysis Acidifying（6h, through CO2PH after neutralization is 6）, aerobic biochemical（6h）With porous ceramic grain biological filtering tower combined working（Hydraulic load is 150m3/ m2.d, porous ceramic grain gross thickness 2m）Treatment, effluent quality is CODCr43mg/L、BOD510mg/L, colourity 5.

Claims (1)

1. a kind of processing method of dyeing waste water, it is characterised in that the dyeing waste water after adjusted pond is adjusted introduces electric flocculation Groove carries out electric flocculation, and using iron plate as soluble anode material, cathode material is stainless steel plate to electric flocculation, and anode thickness is 10mm ~50mm, cathode thickness is 1mm~5mm, and the clear distance between anode and negative electrode is 10mm~30mm, the current density of electric flocculation It is 100A/m2~300A/m2, the waste water residence time between the anode and cathode is the waste water after 5min~20min. electric flocculations Precipitated into sedimentation basin, the sedimentation time is 1h~3h, the sediment to sedimentation basin is filtered, filter residue makees dangerous solid Waste treatment, the supernatant of waste water and sedimentation basin after filtering uses CO in the lump2Its pH value is adjusted to sending hydrolysis acidification after 6~8 Pond, waste water normal temperature in hydrolysis acidification pool stops 6h~10h, and the waste water after hydrolysis acidification is processed into biology aerobic pond normal temperature, The Aerobic Process for Treatment time is 4h~10h, and the waste water after Aerobic Process for Treatment is precipitated into sedimentation basin, and the sedimentation time is 1h~3h, right The sediment of sedimentation basin is filtered, and filter residue makees dangerous disposition of solid waste, and filtrate returns to Aerobic Pond, the supernatant of sedimentation basin Multi-layer biological filter tower is sent to process, the filler of biological filtering tower combined working is activated carbon or porous ceramic grain, and filler gross thickness is 1m~3m, biological filter The dominant bacteria of tower is the red pseudomonas in photosynthetic bacteria, and the hydraulic load of biological filtering tower combined working is 50 m3/m2.d~150m3/ m2.d, the standard water discharge discharge of biological filtering tower combined working, or send qualified discharge or reuse after the further treatment of waste water advanced purifying device.
CN201611263476.XA 2016-12-30 2016-12-30 The processing method of dyeing waste water Pending CN106746339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611263476.XA CN106746339A (en) 2016-12-30 2016-12-30 The processing method of dyeing waste water

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Application Number Priority Date Filing Date Title
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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6456191A (en) * 1987-08-26 1989-03-03 Toto Ltd Denitrification structure for septic tank
CN101024534A (en) * 2006-02-21 2007-08-29 中国科学院生态环境研究中心 Biological electrochemical combined system for treating dye waste water and method thereof
CN101665311A (en) * 2009-09-24 2010-03-10 中南大学 Catalysis and micro-electrolysis combined technology for high-concentration refractory organic wastewater
CN101774714A (en) * 2009-11-27 2010-07-14 北京工业大学 Method and device for pretreatment of high CODCr sewage by electrocoagulation-diatomite technology
CN102757158A (en) * 2012-08-07 2012-10-31 常州大学 Residence community domestic sewage treating system and method
CN104986919A (en) * 2015-06-29 2015-10-21 常州大学 Wastewater advanced treatment system for corn processing
CN105130116A (en) * 2015-08-27 2015-12-09 常州大学 Wheat processing waste water treatment system
CN105502854A (en) * 2016-01-29 2016-04-20 佛山市聚成生化技术研发有限公司 Treatment method of denim printing and dyeing wastewater
CN105668722A (en) * 2016-04-01 2016-06-15 南京师范大学 Self-adaptive long-acting rotating conical electric flocculation device
CN105776447A (en) * 2016-04-01 2016-07-20 南京师范大学 Long-acting rotary conical electric flocculation device
CN205528267U (en) * 2016-01-29 2016-08-31 山东沃能环保工程科技有限公司 Underground -buried integrated sewage treatment device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6456191A (en) * 1987-08-26 1989-03-03 Toto Ltd Denitrification structure for septic tank
CN101024534A (en) * 2006-02-21 2007-08-29 中国科学院生态环境研究中心 Biological electrochemical combined system for treating dye waste water and method thereof
CN101665311A (en) * 2009-09-24 2010-03-10 中南大学 Catalysis and micro-electrolysis combined technology for high-concentration refractory organic wastewater
CN101774714A (en) * 2009-11-27 2010-07-14 北京工业大学 Method and device for pretreatment of high CODCr sewage by electrocoagulation-diatomite technology
CN102757158A (en) * 2012-08-07 2012-10-31 常州大学 Residence community domestic sewage treating system and method
CN104986919A (en) * 2015-06-29 2015-10-21 常州大学 Wastewater advanced treatment system for corn processing
CN105130116A (en) * 2015-08-27 2015-12-09 常州大学 Wheat processing waste water treatment system
CN105502854A (en) * 2016-01-29 2016-04-20 佛山市聚成生化技术研发有限公司 Treatment method of denim printing and dyeing wastewater
CN205528267U (en) * 2016-01-29 2016-08-31 山东沃能环保工程科技有限公司 Underground -buried integrated sewage treatment device
CN105668722A (en) * 2016-04-01 2016-06-15 南京师范大学 Self-adaptive long-acting rotating conical electric flocculation device
CN105776447A (en) * 2016-04-01 2016-07-20 南京师范大学 Long-acting rotary conical electric flocculation device

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Title
湖南省爱国卫生运动委员会办公室等编: "《爱国卫生运动工作手册》", 31 July 1986, 湖南人民出版社出版 *

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Application publication date: 20170531