CN104529022A - Closed-type printing and dyeing wastewater processing method - Google Patents

Closed-type printing and dyeing wastewater processing method Download PDF

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Publication number
CN104529022A
CN104529022A CN201510011144.1A CN201510011144A CN104529022A CN 104529022 A CN104529022 A CN 104529022A CN 201510011144 A CN201510011144 A CN 201510011144A CN 104529022 A CN104529022 A CN 104529022A
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water
tank
filter tank
back flushing
gac
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CN201510011144.1A
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CN104529022B (en
Inventor
叶澄
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Chongqing Tuwei Environmental Protection Technology Co.,Ltd.
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叶澄
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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
    • C02F1/281Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment 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
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/463Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • 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
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/725Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/308Dyes; Colorants; Fluorescent agents
    • 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

Abstract

The invention discloses a closed-type printing and dyeing wastewater processing method. Wastewater sequentially passes through a filter, a reservoir, a regulating reservoir, a reacting pool, a quartz sand filter pot, an activated carbon filter pot, a suspended filler filter pot, a back washing room, an external automatic reagent feeding machine, an air blower, a back washing pump and a clean-water reservoir. The quartz sand filter pot, the activated carbon filter pot and the suspended filler filter pot are detachable filter pots and capable of achieving manual filler changing and cleaning. According to the sanitary wastewater processed by the method, the removal rate of chemical oxygen demand is up to 97.8%, the removal rate of total azote is up to 96.9%, the removal rate of five-day biochemical oxygen demand is up to 96.4%, the removal rate of suspended solid is up to 95.9%, the removal rate of the chroma is up to 94.8%, and the removal rate of the turbidity is up to 98.2%.

Description

A kind of closed treatment method of printing and dying wastewater
Technical field
The present invention relates to a kind for the treatment of process of closed dyeing waste water, belong to the water treatment field in environment protection.
Background technology
It is environmental protection and energy saving (low-carbon (LC)) problem that Development of Textile Industry one of mainly hinders, and the subject matter of environmental protection is waste water, and about 80% textile waste comes from dyeing.Statistic data shows, and textile waste quantity discharged 2,300,000,000 tons in 2008, occupies each industrial trade the 3rd, account for 10.60% of national discharged volume of industrial waste water.Chemical oxygen demand (COD) (CODCr) quantity discharged 31.4 ten thousand tons in textile industry waste discharge, occupies each industrial trade the 4th, accounts for 7.76% of national trade effluent CODCr.These data are the statistic datas to the above enterprise of scale, and real data is much larger possibly.In fact dyeing is the competitive industry based on medium-sized and small enterprises, and medium-sized and small enterprises proportion accounts for 99.6%, and non-public enterprises account for 95%, and a large amount of small businesss data are also not included in.If need carry out dyeing and printing process in 70% of fiber process amount, then waste discharge is about about 3,000,000,000 tons year.
The successful example of dye house effluents process is more, but not good quite a few of effect, its reason roughly has following several situation: (1) printing and dyeing mill does not analyze self waste water speciality (water quality, the water yield), and indiscriminately imitate his factory's experience, result is often undesirable.(2) by the design specifications of municipal sewage treatment, for treatment of dyeing wastewater, only change some parameters, cause very large loss.Particularly in early days, large-scale dye house effluents focuses on, and be all responsible for by larger design institute, and it is understood in depth not to dyeing waste water character, causes very large loss.(3) new technology, novel process, new medicament are without pilot scale, are directly used in engineering, cause a lot of failure.New technology is many through lab scale, pilot scale, should could be used for engineering, and general examination scale is 3% ~ 5% of the engineering water yield, namely about maximum magnify 20.Laboratory study achievement is directly used in engineering, and difficulty has successful case.Engineering should adopt ripe, the safest technology.(4) waste water that production technique is close, can adopt similar treatment process, but also according to water quality, the suitable adjustment technology parameter of the water yield, will ensure processing horizontal.(5) actual motion technology and administrative skill improper, according to waste water change appropriately adjust, be also the reason of fluctuation of service.
The rise of Silk and the progress of finishing process in printing and dye-ing technology, the bio-refractory organism such as PVA slurry, artificial silk alkaline hydrolysis thing (mainly O-phthalic acids material), New-type adjuvant are made to enter dyeing waste water in a large number, its COD concentration also rises to 2000 ~ 3000mg/L by original hundreds of mg/L, thus make original biological treatment system COD clearance drop to about 50% from 70%, even lower.Traditional biological treatment is subject to serious challenge; Traditional chemical precipitation and the COD clearance of By Bubble-floating Method to this kind of dyeing waste water are also only about 30%.Therefore the effective techniques of Dyeing Wastewater Treatment of exploiting economy becomes the problem that current environmental protection industry (epi) is paid close attention to day by day.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of closed treatment method of printing and dying wastewater, dyeing waste water enters the water inlet of strainer by pipeline, filter the water inlet being entered water reservoir after removing particulate matter by the water outlet of filter, after the water level of water reservoir arrives preset value, waste water flows out from the water outlet of water reservoir the water inlet entering equalizing tank, arranges pH meter in equalizing tank, adjustment pH is 3-5, and external automatic medicament feeding machine adds FeSO by the first medicine-pouring port of equalizing tank 4amount be 1g/L, external automatic medicament feeding machine adds H by the second medicine-pouring port of equalizing tank 2o 2amount be 2.67mL/L, after waste water stops 1h in equalizing tank, enter the water inlet of reaction tank from water outlet, reaction tank outer wall is provided with insulating protective layer, is provided with irony electrode pair in pond, and interval 10cm between electrode, adds flocculation agent FeCl 3be 1A by electric current between irony electrode during reaction, after reaction, water enters the water inlet of quartz sand filter tank from the water outlet of reaction tank, the water outlet of quartz sand filter tank connects the water inlet of gac filter tank by pipeline, dissolved oxygen instrument is provided with in gac filter tank, dissolved oxygen controls at 4mg/L, the cobble supporting layer of high 20cm is provided with at the bottom of tank, cobble supporting layer is filled with the active carbon layer that thickness is 200cm, elevation of water surface is 250cm, and gac selects coal mass active carbon, coal mass active carbon size 0.4mm, porosity 50%-60%, tap density 400kg/m 3,enter the water inlet of floating stuffing filter tank from the water outlet of gac filter tank after water stops 1h in gac filter tank, dissolved oxygen instrument is provided with in floating stuffing filter tank, dissolved oxygen controls at 4mg/L, the cobble supporting layer of high 20cm is provided with at the bottom of tank, cobble supporting layer is loaded the hollow modified plastics floating stuffing layer that thickness is 230cm, porosity 98%, tap density 60kg/m 3, elevation of water surface is 250cm, waterpower, current from tank deck enter in tank stop 2h after enter drainage pipeline from the water outlet at the bottom of tank; Gas blower, backwashing pump and clean water basin are provided with between back flushing, the first back flushing outlet between back flushing connects the back flushing entrance of quartz sand filter tank by pipeline, the second back flushing outlet between back flushing connects the back flushing entrance of gac filter tank by pipeline, the 3rd back flushing outlet between back flushing connects the back flushing entrance of floating stuffing filter tank by pipeline, the mode that back flushing adopts gas punching, air water combines flushing, water rinse combines, namely first gas rushes 30min, air water combines flushing 30min again, the mode of last water rinse 15min.
Quartz sand filter tank, gac filter tank and floating stuffing filter tank are detachable filter tank, manually can carry out replacing and the cleaning of filler.
Quartz sand filter tank, gac filter tank and floating stuffing filter tank leave water intaking and detect mouth, tank body adopts transparent material manufacture to form simultaneously.
The invention has the advantages that:
(1) stable equipment operation, floor space is little, and hydraulic detention time is short.
(2), in the sanitary wastewater by present method process, the clearance of chemical oxygen demand (COD) reaches 97.8%; The clearance of total nitrogen reaches 96.9%, and the clearance of five-day BOD reaches 96.4%, and the clearance of suspended substance reaches 95.9%, chroma removal rate 94.8%, turbidity removal rate 98.2%.
(3) the material soil removability selected is strong, and surface hydrophilic power is strong, and investment running cost is low.
(4) safeguard that easily operating automation degree is high, does and makes high efficient and reliable, and the construction period is short, has mobility.
Accompanying drawing explanation
Fig. 1 is a kind of equipment schematic diagram of the closed Waste Water Treatment that ignites.
Between 1-strainer, 2-water reservoir, 3-equalizing tank, 4-reaction tank, 5-quartz sand filter tank, 6-gac filter tank, 7-floating stuffing filter tank, 8-back flushing, the external automatic medicament feeding machine of 22-, 23-clean water basin, 24-backwashing pump, 25-gas blower.
Embodiment
A kind of closed treatment method of printing and dying wastewater, dyeing waste water enters the water inlet of strainer 1 by pipeline, filter the water inlet being entered water reservoir 2 after removing particulate matter by the water outlet of filter, after the water level of water reservoir 2 arrives preset value, waste water flows out from the water outlet of water reservoir 2 water inlet entering equalizing tank 3, arrange pH meter in equalizing tank 3, adjustment pH is 3-5, and external automatic medicament feeding machine 22 adds FeSO by the first medicine-pouring port of equalizing tank 4amount be 1g/L, external automatic medicament feeding machine 22 adds H by the second medicine-pouring port of equalizing tank 2o 2amount be 2.67mL/L, after waste water stops 1h in equalizing tank 3, enter the water inlet of reaction tank 4 from water outlet, reaction tank 4 outer wall is provided with insulating protective layer, is provided with irony electrode pair in pond, and interval 10cm between electrode, adds flocculation agent FeCl 3be 1A by electric current between irony electrode during reaction, after reaction, water enters the water inlet of quartz sand filter tank from the water outlet of reaction tank, the water outlet of quartz sand filter tank connects the water inlet of gac filter tank by pipeline, dissolved oxygen instrument is provided with in gac filter tank, dissolved oxygen controls at 4mg/L, the cobble supporting layer of high 20cm is provided with at the bottom of tank, cobble supporting layer is filled with the active carbon layer that thickness is 200cm, elevation of water surface is 250cm, and gac selects coal mass active carbon, coal mass active carbon size 0.4mm, porosity 50%-60%, tap density 400kg/m 3,enter the water inlet of floating stuffing filter tank 7 from the water outlet of gac filter tank 6 after water stops 1h in gac filter tank, dissolved oxygen instrument is provided with in floating stuffing filter tank 7, dissolved oxygen controls at 4mg/L, the cobble supporting layer of high 20cm is provided with at the bottom of tank, cobble supporting layer is loaded the hollow modified plastics floating stuffing layer that thickness is 230cm, porosity 98%, tap density 60kg/m 3, elevation of water surface is 250cm, waterpower, current from tank deck enter in tank stop 2h after enter drainage pipeline from the water outlet at the bottom of tank; Between back flushing, 8 are provided with gas blower 25, backwashing pump and clean water basin, between back flushing, the first back flushing outlet of 8 connects the back flushing entrance of quartz sand filter tank 5 by pipeline, between back flushing, the second back flushing outlet of 8 connects the back flushing entrance of gac filter tank 6 by pipeline, between back flushing, the 3rd back flushing outlet of 8 connects the back flushing entrance of floating stuffing filter tank 7 by pipeline, the mode that back flushing adopts gas punching, air water combines flushing, water rinse combines, namely first gas rushes 30min, air water combines flushing 30min again, the mode of last water rinse 15min.Quartz sand filter tank, gac filter tank and floating stuffing filter tank are detachable filter tank, manually can carry out replacing and the cleaning of filler.Quartz sand filter tank, gac filter tank and floating stuffing filter tank leave water intaking and detect mouth, tank body adopts transparent material manufacture to form simultaneously.

Claims (3)

1. a closed treatment method of printing and dying wastewater, it is characterized in that: dyeing waste water enters the water inlet of strainer by pipeline, filter the water inlet being entered water reservoir after removing particulate matter by the water outlet of filter, after the water level of water reservoir arrives preset value, waste water flows out from the water outlet of water reservoir the water inlet entering equalizing tank, arrange pH meter in equalizing tank, adjustment pH is 3-5, and external automatic medicament feeding machine adds FeSO by the first medicine-pouring port of equalizing tank 4amount be 1g/L, external automatic medicament feeding machine adds H by the second medicine-pouring port of equalizing tank 2o 2amount be 2.67mL/L, after waste water stops 1h in equalizing tank, enter the water inlet of reaction tank from water outlet, reaction tank outer wall is provided with insulating protective layer, is provided with irony electrode pair in pond, and interval 10cm between electrode, adds flocculation agent FeCl 3be 1A by electric current between irony electrode during reaction, after reaction, water enters the water inlet of quartz sand filter tank from the water outlet of reaction tank, the water outlet of quartz sand filter tank connects the water inlet of gac filter tank by pipeline, dissolved oxygen instrument is provided with in gac filter tank, dissolved oxygen controls at 4mg/L, the cobble supporting layer of high 20cm is provided with at the bottom of tank, cobble supporting layer is filled with the active carbon layer that thickness is 200cm, elevation of water surface is 250cm, and gac selects coal mass active carbon, coal mass active carbon size 0.4mm, porosity is about 50%-60%, tap density 400kg/m 3enter the water inlet of floating stuffing filter tank from the water outlet of gac filter tank after water stops 1h in gac filter tank, dissolved oxygen instrument is provided with in floating stuffing filter tank, dissolved oxygen controls at 4mg/L, the cobble supporting layer of high 20cm is provided with at the bottom of tank, cobble supporting layer is loaded the hollow modified plastics floating stuffing layer that thickness is 230cm, porosity 98%, tap density 60kg/m 3, elevation of water surface is 250cm, waterpower, current from tank deck enter in tank stop 2h after enter drainage pipeline from the water outlet at the bottom of tank; Gas blower, backwashing pump and clean water basin are provided with between back flushing, the first back flushing outlet between back flushing connects the back flushing entrance of quartz sand filter tank by pipeline, the second back flushing outlet between back flushing connects the back flushing entrance of gac filter tank by pipeline, the 3rd back flushing outlet between back flushing connects the back flushing entrance of floating stuffing filter tank by pipeline, the mode that back flushing adopts gas punching, air water combines flushing, water rinse combines, namely first gas rushes 30min, air water combines flushing 30min again, the mode of last water rinse 15min.
2. the closed treatment method of printing and dying wastewater of one according to claim 1, is characterized in that, quartz sand filter tank, gac filter tank and floating stuffing filter tank are detachable filter tank, manually can carry out replacing and the cleaning of filler.
3. the closed treatment method of printing and dying wastewater of one according to claim 1, is characterized in that, quartz sand filter tank, gac filter tank and floating stuffing filter tank leaves water intaking and detects mouth, and tank body adopts transparent material manufacture to form simultaneously.
CN201510011144.1A 2015-01-11 2015-01-11 A kind of closed treatment method of printing and dying wastewater Active CN104529022B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105060562A (en) * 2015-08-13 2015-11-18 山东省环科院环境工程有限公司 Deep treatment method of tannery wastewater

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101723548A (en) * 2009-12-10 2010-06-09 上海宝钢化工有限公司 System for recycling and treating coking wastewater
CN102701500A (en) * 2012-06-25 2012-10-03 龙岩市康琦环保科技有限公司 Printing and dyeing wastewater zero-discharge reuse treatment method
CN103539296A (en) * 2013-10-31 2014-01-29 四川凯沃环保科技有限公司 Method and device for treating high-concentration nonbiodegradable organic wastewater
CN103755093A (en) * 2013-12-13 2014-04-30 盐城工学院 Fenton fluidized bed-IBAC combined method used for advanced treatment of textile dyeing and finishing waste water
CN104478139A (en) * 2015-01-11 2015-04-01 叶澄 Closed type printing and dyeing waste water processing system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101723548A (en) * 2009-12-10 2010-06-09 上海宝钢化工有限公司 System for recycling and treating coking wastewater
CN102701500A (en) * 2012-06-25 2012-10-03 龙岩市康琦环保科技有限公司 Printing and dyeing wastewater zero-discharge reuse treatment method
CN103539296A (en) * 2013-10-31 2014-01-29 四川凯沃环保科技有限公司 Method and device for treating high-concentration nonbiodegradable organic wastewater
CN103755093A (en) * 2013-12-13 2014-04-30 盐城工学院 Fenton fluidized bed-IBAC combined method used for advanced treatment of textile dyeing and finishing waste water
CN104478139A (en) * 2015-01-11 2015-04-01 叶澄 Closed type printing and dyeing waste water processing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105060562A (en) * 2015-08-13 2015-11-18 山东省环科院环境工程有限公司 Deep treatment method of tannery wastewater

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