CN1073663A - Washing and dyeing wastewater treatment and renovation - Google Patents
Washing and dyeing wastewater treatment and renovation Download PDFInfo
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- CN1073663A CN1073663A CN 92111061 CN92111061A CN1073663A CN 1073663 A CN1073663 A CN 1073663A CN 92111061 CN92111061 CN 92111061 CN 92111061 A CN92111061 A CN 92111061A CN 1073663 A CN1073663 A CN 1073663A
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Abstract
The present invention is a kind of washing and dyeing wastewater treatment and renovation technology, is particularly useful for the printing and dyeing mill of textile industry.
This technical process is a wastewater equalization pond, coagulation, air supporting, sand filtration, charcoal absorption, reuse clean water basin.
Reach " textile industry water supply standard " by the waste water after the present invention's processing; cloth inner quality that dyes and external quality standard all up to standard, water saving, protection environment; entire treatment flow process floor space is little; applied widely, easy to operate, and the average removal rate of COD can reach 94%; chroma removal rate can reach 99%; near colourless, but the water direct reuse after the processing, and the water yield 90% is back to the full technology of dying cloth.
Description
The invention belongs to weaving washing and dyeing wastewater treatment process, i.e. waste water recycling and processing method thereof.
Now textile industry printing and dyeing mill waste water has dissimilar treatment processs, has coagulation sink method, the oxygen biological process, and physico-chemical processes, biological treatment, treatment process has nothing in common with each other, but the water after the processing can not direct reuse.For example: Beijing Printing and Dyeing Mill adopts coagulating sedimentation, technical process is a coagulating sedimentation, air supporting, sand filtration, water outlet, and selecting coagulating agent for use is XB-type water purification pulvis, the dilution back reuse in 1: 1 of water after treatment and phreatic water, handle at present still based on aerobe method, it is obvious that the BOD effect is removed in this processing, but the COD chroma removal rate is not high, excellent with table expose to the sun and contact oxidation method occupy the majority, as: Dalian printing and dyeing mill adopts bio-contact oxidation, and coagulating agent adopts Tai-Ace S 150, aluminium salt.The oxygen biological treatment is at the startup, and in the physico-chemical processes, mixed condensed gas flotation process progressively replaces coagulant sedimentation.Wujiang silks and satins refining is floated a factory and is adopted the branch second phase to carry out, and the first phase adopts biochemical aeration and second phase to adopt materialization to handle, coagulating agent employing aluminium chlorohydroxide, and water after treatment can not direct reuse.The organic removal rate of above-mentioned several general colourity and difficult degradation is lower, and the antibiosis voltinism of dyestuff can be more and more higher, causes the very difficult method removal with biochemistry of residual organic in the waste water, and the water after the processing generally all can not direct reuse.
It is that dosing combines with coagulation dosing before adopting pump that washing and dyeing wastewater of the present invention is handled; coagulated agent adopts the patented product of Tianjin sieve brother chemistry company limited; the patent No. is 88101441.9; and adopt unique technical recipe such as carbon absorption; but make the waste water direct reuse after the processing, the dye cloth average removal rate of full technology COD of the water yield 90% reuse can reach 94%, and chroma removal rate can reach 99% near colourless; environment has been protected in water saving.
The objective of the invention is to remove dye well colloidalmaterial residual in the waste water, make muddy colored waste water, by the water after the present invention's processing, the colour of sky is transparent, pollution-free, water after the processing can continue reuse, water saving, and water quality reaches cloth Shu inner quality and the external quality standard all up to standard that " textile industry water supply standard " dyes.
Washing and dyeing wastewater treatment and renovation characteristic craft journey of the present invention is such wastewater equalization pond, coagulation, air supporting, sand filtration, charcoal absorption, reuse clean water basin.
Figure one is whole washing and dyeing wastewater treatment and renovation technology journey figure, and (1) is fabric dyeing machine; (2) wastewater equalization pond; (3) sump pump; (4) coagulation case; (5) agitator; (6) medicine-chest; (7) air buoyancy tank; (8) mud-scraping machine; (9) air compressor machine; (10) fresh water pump; (11) sandfiltration pot; (12) charcoal canister I; (13) charcoal canister II; (14) dissolving; (15) reuse water storage pool; (16) reuse fresh water pump; (17) air dissolved pump.
Below in conjunction with embodiment this summary of the invention is described in detail, wash when fabric dyeing machine (1) and to dye later waste water and leave wastewater equalization pond (2) in, wastewater equalization pond (2) does not actively struggle against, stir mixing pump, overstate mouth more, volume generally is not less than 1/3 of the average water yield, waste water in the wastewater equalization pond (2) will carry out coagulation by sump pump (3) in coagulation case (4), waste water by sump pump (3) to coagulation case (4) before, adopt the preceding dosing of pump, dosing is deposited PPAMSC medicine and PAM medicine by dosing tank (4) in the dosing tank (4).It is in the preceding adding of sump pump (3) that the PPAMSC medicine adds, squeezing into coagulation case (4) with sump pump (3) then, place PAM simultaneously and in coagulation case (4), carry out coagulation, coagulation adopts flocculation agent PAM release for resistance, flocculation time 10 minutes, stir at a slow speed 60 rev/mins and adopt pump before place aluminium salt coagulating agent, especially be best with PPAMSC, best feed rate is controlled between the 1%-0.3%, and best pH value is 6-9,10-40 ℃ of optimal coagulation temperature.Utilize sump pump (3) to stir 1440 rev/mins fast, utilize agitator in the coagulation case (5) then, stir, agitator changes at a slow speed, and stirring is 80 100 rev/mins, overall churning time 8-10 minute, by the coagulation exhausted water that stirs, utilize liquid level difference to flow into gas flood case (7) and carry out mud-water separation, the molten gas that utilizes air dissolved pump (17) that separator box hydraulic pressure is gone into the molten cylinder of molten cylinder (14) (14) simultaneously enters air buoyancy tank (7) dissolved air time 15 minutes, air compressor machine (9) replenishes air to 0.4MPa to molten cylinder (14), dissolved-air pressure 0.4-0.6MPa, the flat flow air buoyancy tank is adopted in air supporting, and molten cylinder (14) replenishes air in air buoyancy tank (6), the dissolved air flotation time should be less than 1 hour, discharge the 25%-40% of flow control, running type mud-scraping machine (8) is arranged on the air buoyancy tank, drew together mud 1 hour at interval in treatment capacity, mud-scraping machine (8) work 10 minutes, there is a bucket in air buoyancy tank (7) upper right corner, and mud enters boiler and prohibits burning after dehydration, solve the secondary pollution problem.
The operating mode control pH value 6-7.5 of air supporting water outlet, COD100-120mg/l, colourity 5-10 times, SS10-15mg/l is through pneumatically supported exhausted water, squeeze in the sand filtration cylinder (11) by fresh water pump (10), sand filtration is to adopt the pressure type sand filtration, and filtrate adopts high grade quartz sand and cobble grating, and the optimum filtration flow rate control was at 15M-20M/ hour, when the Inlet and outlet water difference is crossed 0.15MPa, need carry out back flushing.
The water condition that goes out through the sand filtration wastewater treatment is controlled, COD should be less than 100mg/l, colourity should be less than 10 times, SS should be less than 5mg/l, and turbidity should be controlled at about 10 degree, through the exhausted water of sand filtration, enter charcoal canister I (12) by pipeline, carry out charcoal absorption, charcoal absorption is to adopt pressure type two-stage charcoal jar, and gac adopts surface-area at 800-1000M
2The gac of/gram, iodine matter requires greater than 65.Optimum flow rate 15-20M/ hour, general adsorption time 15-20 minute, the optimal adsorption time was 20 minutes, when Inlet and outlet water pressure reduction during greater than 0.5MP, need recoil, the water of the above quality of water flushing in need using during back flushing is in order to avoid the gac premature failure, in order to make full use of the adsorptive power of charcoal, extend working time, increase the water outlet safety coefficient, adopt the secondary charcoal canister, charcoal canister I (12) enters charcoal canister II (13) by pipeline, carries out the absorption of secondary charcoal.The operating mode control COD80-100mg/l of charcoal absorption effluent, colourity 0-1 times, turbidity 0-0.2 degree, PH6.5-7.5.Reach " textile industry water supply standard " by the water after handling and dye cloth Shu inner quality and external quality reaches textile standard.Water after the processing leaves reuse clear water storage pool (15) in, and reuse clear water storage pool (15) is provided with overflow port, and volume generally is not less than 1/4 of average reuse amount.The clear water that reuse clear water storage pool (15) is deposited by reuse fresh water pump (16) to the equipment of dying cloth.
Waste water after handling by the present invention reaches cloth Shu inner quality and the external quality that " textile industry water supply standard " dye and all reaches textile standard, solved the secondary pollution problem, water saving, and the average removal rate of COD can reach 94%, and chroma removal rate can reach 99%, near colourless, water after the processing can continue reuse, and a speed treatment scheme floor space is little, and subject range is extensive, easy to operate, reach water saving and non-secondary pollution.
Claims (3)
1, wastewater treatment and renovation is that a kind of weaving washing and dyeing wastewater is handled, and technology is coagulating sedimentation, air supporting, sand filtration, water outlet.It is characterized in that after this wastewater treatment can reuse, and technology is equalizing tank, coagulation, air supporting, sand filtration, charcoal absorption, the reuse clean water basin.
2, it is characterized in that according to the described wastewater treatment and renovation of claim 1:
A, illustrated equalizing tank are provided with the deposition bucket, stir mixing pump, overstate to run off mouth that volume generally is no less than 1/3 of the average water yield.
B, said coagulation are that to adopt flocculation agent PAM be cationic, flocculation time 10 minutes, stir at a slow speed 60 rev/mins and adopt pump before place aluminium salt coagulating agent, especially be best with PPAMC, best feed rate is controlled to be decided between the 1%-0.3%, and best pH value is 6-9,10-40 ℃ of optimal coagulation temperature.
The flat flow buoyancy tank is adopted in c, said air supporting, and dissolving replenishes air, and the dissolved air flotation time should be not less than 1 hour, discharges flow control at the 25%-40% that handles flow, and the running type mud-scraping machine is arranged on the air buoyancy tank, and there is a bucket in the air buoyancy tank upper right corner.
D, said sand filtration are to adopt pressure type sandfiltration pot, filtrate to adopt high grade quartz sand and cobble grating, and the optimum filtration speed control need recoil when the Inlet and outlet water difference is crossed 0.15MPa at 15M/ hour.
E, the absorption of said charcoal are to adopt pressure type two-stage charcoal jar, gac to adopt surface-area at 800-1000M
2The gac of/gram.Iodine matter requires greater than 65, and optimum flow rate 20M/ hour, the optimal adsorption time was 20 minutes, need recoil when passing in and out difference greater than 0.5MPa.
F, said reuse clean water basin are to be provided with overflow port, and volume generally is not less than 1/4 of average reuse amount.
3, according to claim 1 or 2 described wastewater treatments, it is characterized in that the operating mode of this wastewater treatment is controlled to be:
Air supporting goes out water management: pH value 6-7.5
COD 120-100mg/l
Colourity 5-10 doubly
SS 10 mg/l
Sand filtration goes out water management: COD should be less than 100mg/l
Colourity should be less than 10 times
SS should be less than 5mg/l
Turbidity should be controlled at about 10 degree
Charcoal absorption effluent control: COD 80-100mg/l
Colourity 0-1 doubly
Turbidity 0-0.2 degree
PH 6.5-7.5
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92111061 CN1073663A (en) | 1992-10-15 | 1992-10-15 | Washing and dyeing wastewater treatment and renovation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92111061 CN1073663A (en) | 1992-10-15 | 1992-10-15 | Washing and dyeing wastewater treatment and renovation |
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| Publication Number | Publication Date |
|---|---|
| CN1073663A true CN1073663A (en) | 1993-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92111061 Pending CN1073663A (en) | 1992-10-15 | 1992-10-15 | Washing and dyeing wastewater treatment and renovation |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319879C (en) * | 2004-10-27 | 2007-06-06 | 贵阳铝镁设计研究院 | Electrolytic aluminium factory production waste water disposal method |
| CN1325402C (en) * | 2005-08-31 | 2007-07-11 | 上海望春花（集团）股份有限公司 | Printing and dyeing waste water disposal process |
| CN100467094C (en) * | 2007-04-20 | 2009-03-11 | 龚先木 | Waste water treatment reusing complete plant for water spraying loom |
| CN103351067A (en) * | 2013-07-22 | 2013-10-16 | 贵阳市宇洁洗涤有限责任公司 | Washing wastewater reuse method |
| CN106007061A (en) * | 2016-06-24 | 2016-10-12 | 湖州新嘉怡丝织印花有限公司 | Treatment method for dyeing wastewater of natural dye |
| CN108751527A (en) * | 2018-08-22 | 2018-11-06 | 杭州开源环保工程有限公司 | A kind of combined type high-recovery processing system |
| CN110040933A (en) * | 2019-05-22 | 2019-07-23 | 刘届 | Sewage zero-discharge lining cloth preprocessing system |
-
1992
- 1992-10-15 CN CN 92111061 patent/CN1073663A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319879C (en) * | 2004-10-27 | 2007-06-06 | 贵阳铝镁设计研究院 | Electrolytic aluminium factory production waste water disposal method |
| CN1325402C (en) * | 2005-08-31 | 2007-07-11 | 上海望春花（集团）股份有限公司 | Printing and dyeing waste water disposal process |
| CN100467094C (en) * | 2007-04-20 | 2009-03-11 | 龚先木 | Waste water treatment reusing complete plant for water spraying loom |
| CN103351067A (en) * | 2013-07-22 | 2013-10-16 | 贵阳市宇洁洗涤有限责任公司 | Washing wastewater reuse method |
| CN106007061A (en) * | 2016-06-24 | 2016-10-12 | 湖州新嘉怡丝织印花有限公司 | Treatment method for dyeing wastewater of natural dye |
| CN108751527A (en) * | 2018-08-22 | 2018-11-06 | 杭州开源环保工程有限公司 | A kind of combined type high-recovery processing system |
| CN110040933A (en) * | 2019-05-22 | 2019-07-23 | 刘届 | Sewage zero-discharge lining cloth preprocessing system |
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