CN107857444A - A kind of environment protection method for handling dyeing waste water - Google Patents
A kind of environment protection method for handling dyeing waste water Download PDFInfo
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- CN107857444A CN107857444A CN201711337520.1A CN201711337520A CN107857444A CN 107857444 A CN107857444 A CN 107857444A CN 201711337520 A CN201711337520 A CN 201711337520A CN 107857444 A CN107857444 A CN 107857444A
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- Prior art keywords
- waste water
- dyeing waste
- water
- dyeing
- pond
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- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment 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
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- 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
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- 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
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- 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
- C02F3/30—Aerobic and anaerobic processes
Abstract
The present invention relates to a kind of environment protection method for handling dyeing waste water, following steps are specifically included：Dyeing waste water enters the first treating column by the oxidized degraded of harmful substance after larger suspension and floating object are removed by grid；Flocculation aid is added into the dyeing waste water after oxidation processes, secondary biochemical treatment is carried out to dyeing waste water, waste water after oxidative degradation is transported to regulating reservoir, the regulation of water and the equilibrium of water quality are carried out herein, then it is promoted to hydrolysis acidification pool with pump, hydrolysis acidification water outlet flows into contact-oxidation pool certainly, enter sedimentation basin after microbial action removes most organic matters and colourity in contact-oxidation pool, elastic solid filler is placed in pond, contact-oxidation pool is the main process for the treatment of of dyeing wastewater, elastic stereo is placed in pond to fill up and semi-soft combined stuffing, its bottom uses micro-pore aeration；To Containing Sulfur dyestuff and the dyeing waste water of Naphthol dyestuff, dyeing waste water is after coagulating kinetics, if water outlet still has deeper color and luster, it is necessary to further decolourizes.
Description
Technical field
The invention belongs to environmental technology field, is a kind of environment protection method for handling dyeing waste water specifically.
Background technology
Industrial wastewater includes production waste water and production waste, refers to caused waste water and waste liquid in industrial processes, its
In contain caused pollutant in the industrial production materials, intermediate product, byproduct and the production process that outflow with water.With work
Industry develops rapidly, and the type and quantity of waste water rapidly increase, and the pollution to water body is also increasingly extensively and serious, threatens the mankind's
Health and safety.Therefore, for environmental protection, the processing of industrial wastewater is more even more important than the processing of municipal sewage.
With the development of printing and dyeing industry, a large amount of fiber products occur, and new chemical sizwe, dye material and finishing agent etc. are answered
With, changed the composition of dyeing waste water, intractability increasing, water outlet COD, the color of simple aerobic biological process for treating
Degree is difficult to up to standard, seriously pollutes environment, the hydrolysis acidification combined for bioanalysis with chemical method, catalytic oxidation, and coagulation process can solve
Certainly this problem.
The content of the invention
It is an object of the invention to provide a kind of environment protection method for handling dyeing waste water, its is simple in construction, can effectively remove
Particulate matter and steam in waste gas, will not also result in blockage to water pump.
To achieve the above object, the present invention provides following technical scheme：A kind of environment protection method for handling dyeing waste water, specifically
Comprise the following steps：
Step 1：Dyeing waste water enters the first treating column after larger suspension and floating object are removed by grid, at first
Oxidant is provided with outside reason tower bottom, waste water is entered with the abundant haptoreaction of oxidant in the first treating column, and then stirring is equal
After even, harmful substance is then oxidized degraded；
Step 2：Flocculation aid is added into the dyeing waste water after oxidation processes, after stirring, standing sedimentation, filtering will be upper
Clear liquid is introduced into anaerobic-aerobic reactor by mechanical grille, is stirred simultaneously, the organic matter in dyeing waste water is further dropped
Solution processing, secondary biochemical treatment is carried out to dyeing waste water；
Step 3：Waste water after oxidative degradation is transported to regulating reservoir, carries out the regulation of water and the equilibrium of water quality herein, then
Hydrolysis acidification pool is promoted to pump, hydrolysis acidification water outlet is from contact-oxidation pool is flowed into, through microbial action in contact-oxidation pool
Enter sedimentation basin after removing most organic matters and colourity；
Step 4：The removal of organic matter：Elastic solid filler is placed in pond, it is 0.02~0.55mg/ that dissolved oxygen DO is controlled in pond
L, general gas-water ratio (7~10):1；Waste water is after hydrolysis acidification, and its biodegradability is greatly improved, and COD has declined；
Step 5：Contact-oxidation pool is the main process for the treatment of of dyeing wastewater, and design water is 7~10mg/L, and elasticity is placed in pond
Solid is filled up uses micro-pore aeration with semi-soft combined stuffing, its bottom；
Step 6：The removal of colourity：To Containing Sulfur dyestuff and the dyeing waste water of Naphthol dyestuff, when PAC dosages increase to
When 0.1% and 0.2%, its decolorizing efficiency accordingly will bring up to 94% and 96%；
Step 7：Dyeing waste water is after coagulating kinetics, if water outlet still has deeper color and luster, it is necessary to further decolourizes.
Further, the hydrolysis acidification pool control in the step 1 is in the acid fermentation stage, to improve the biochemical of waste water
Property.
Further, the clarifier sludge in the step 3 is all back to hydrolysis acidification pool.
Further, the catalytic oxidation pond body size in the step 3 is 9 × 8 × 5.0m.
Further, the decolouring in the step 7 can be handled using oxidant.
Compared with prior art, the beneficial effects of the invention are as follows：
1. a kind of environment protection method of processing dyeing waste water of the present invention, its is simple in construction, can effectively decompose high in dyeing waste water
The organic pollution and residual dye of content, make dyeing waste water thoroughly be purified, recycled, and realize that printing and dyeing are useless
Water zero discharge.
2. dyeing waste water is handled through hydrolysis acidification, the larger molecular organicses of the difficult degradation in waste water, resolve into simple small
Molecular organic, such as organic acid, alcohols, the BOD/COD of waste water is improved, improves the biodegradability of waste water, so as to reduce
The pond of follow-up Aerobic Process for Treatment holds, and saves energy consumption；Sludge is all back to hydrolysis acidification pool after contact-oxidation pool goes out water sedimentation, in pond
It is interior to enter solubilising and shrink volumetric reaction, excess sludge is greatly decreased, Direct Dehydration is can be easy to after excess sludge is concentrated；By
Improved in the biodegradability of waste water, bio-contact oxidation organic removal rate is accordingly improved, and water miscible COD is effectively gone
Remove, COD, BOD concentration of sedimentation basin water outlet are relatively low, and coagulant charging quantity greatly reduces, and operating cost reduces；Decolouring oxidation pond
As the guarantee technique of color removal, if colourity can come into operation when not up to standard, it can generally surmount discharge.
3. hydrolysis acidification-alternative techniques of the catalytic oxidation-coagulation process as conventional activated sludge process, its treatment effect
Traditional handicraft is substantially better than, has the characteristics of energy consumption is low, sludge output is few, and excess sludge can Direct Dehydration；Set after sedimentation basin mixed
Solidifying sedimentation basin and decolouring oxidation pond, as tertiary treatment, can obtain preferable effluent quality, and part water outlet can be back to production,
This group technology is to improve the practicable method of disposal effect of dyeing wastewater.
4. hydrolysis acidification pool control is in the acid fermentation stage, to improve the biodegradability of waste water.
Embodiment
The present invention is further described for example below.
Embodiment：
Described in the embodiment of the present invention to achieve the above object, the present invention provides following technical scheme：One kind processing dyeing waste water
Environment protection method, specifically include following steps：
Step 1：Dyeing waste water enters the first treating column after larger suspension and floating object are removed by grid, at first
Oxidant is provided with outside reason tower bottom, waste water is entered with the abundant haptoreaction of oxidant in the first treating column, and then stirring is equal
After even, harmful substance is then oxidized degraded；
Step 2：Flocculation aid is added into the dyeing waste water after oxidation processes, after stirring, standing sedimentation, filtering will be upper
Clear liquid is introduced into anaerobic-aerobic reactor by mechanical grille, is stirred simultaneously, the organic matter in dyeing waste water is further dropped
Solution processing, secondary biochemical treatment is carried out to dyeing waste water；
Step 3：Waste water after oxidative degradation is transported to regulating reservoir, carries out the regulation of water and the equilibrium of water quality herein, then
Hydrolysis acidification pool is promoted to pump, hydrolysis acidification water outlet is from contact-oxidation pool is flowed into, through microbial action in contact-oxidation pool
Enter sedimentation basin after removing most organic matters and colourity；
Step 4：The removal of organic matter：Elastic solid filler is placed in pond, it is 0.02~0.55mg/ that dissolved oxygen DO is controlled in pond
L, general gas-water ratio (7~10):1；Waste water is after hydrolysis acidification, and its biodegradability is greatly improved, and COD has declined；
Step 5：Contact-oxidation pool is the main process for the treatment of of dyeing wastewater, and design water is 7~10mg/L, and elasticity is placed in pond
Solid is filled up uses micro-pore aeration with semi-soft combined stuffing, its bottom；
Step 6：The removal of colourity：To Containing Sulfur dyestuff and the dyeing waste water of Naphthol dyestuff, when PAC dosages increase to
When 0.1% and 0.2%, its decolorizing efficiency accordingly will bring up to 94% and 96%；
Step 7：Dyeing waste water is after coagulating kinetics, if water outlet still has deeper color and luster, it is necessary to further decolourizes.
Hydrolysis acidification pool control in the step 1 is described to improve the biodegradability of waste water in the acid fermentation stage
Clarifier sludge in step 3 is all back to hydrolysis acidification pool, and the catalytic oxidation pond body size in the step 3 is 9 × 8
× 5.0m, the decolouring in the step 7 can be handled using oxidant.
A kind of environment protection method for processing dyeing waste water that the present embodiment is provided, its is simple in construction, can effectively decompose print
The organic pollution and residual dye of high content in waste water are contaminated, dyeing waste water thoroughly purified, recycled,
Dyeing waste water zero-emission is realized, dyeing waste water is handled through hydrolysis acidification, the larger molecular organicses of the difficult degradation in waste water, is resolved into
Simple small organic molecule, such as organic acid, alcohols, the BOD/COD of waste water is improved, improves the biodegradability of waste water, from
And the pond for reducing follow-up Aerobic Process for Treatment holds, energy consumption is saved；Sludge is all back to hydrolysis acid after contact-oxidation pool goes out water sedimentation
Change pond, solubilising and shrink volumetric reaction are entered in pond, excess sludge is greatly decreased, can be easy to after excess sludge is concentrated straight
Connect dehydration；Because the biodegradability of waste water improves, bio-contact oxidation organic removal rate is accordingly improved, and water miscible COD is obtained
To effectively removing, COD, BOD concentration of sedimentation basin water outlet are relatively low, and coagulant charging quantity greatly reduces, and operating cost reduces；
Guarantee technique of the decolouring oxidation pond as color removal, if colourity can come into operation when not up to standard, can generally surmount row
Put, hydrolysis acidification-alternative techniques of the catalytic oxidation-coagulation process as conventional activated sludge process, its treatment effect is substantially excellent
In traditional handicraft, there is the characteristics of energy consumption is low, sludge output is few, and excess sludge can Direct Dehydration；Coagulating sedimentation is set after sedimentation basin
Pond and decolouring oxidation pond, as tertiary treatment, preferable effluent quality can be obtained, part water outlet can be back to production, this combination
Technique is to improve the practicable method of disposal effect of dyeing wastewater, and hydrolysis acidification pool was controlled in the acid fermentation stage, to improve
The biodegradability of waste water.
Above example is used for illustrative purposes only, rather than limitation of the present invention, the technology people about technical field
Member, without departing from the spirit and scope of the present invention, can also make various conversion or modification, therefore all equivalent
Technical scheme should also belong to scope of the invention, should be limited by each claim.
Claims (5)
- A kind of 1. environment protection method for handling dyeing waste water, it is characterised in that：Specifically include following steps：Step 1：Dyeing waste water enters the first treating column after larger suspension and floating object are removed by grid, at first Oxidant is provided with outside reason tower bottom, waste water is entered with the abundant haptoreaction of oxidant in the first treating column, and then stirring is equal After even, harmful substance is then oxidized degraded；Step 2：Flocculation aid is added into the dyeing waste water after oxidation processes, after stirring, standing sedimentation, filtering will be upper Clear liquid is introduced into anaerobic-aerobic reactor by mechanical grille, is stirred simultaneously, the organic matter in dyeing waste water is further dropped Solution processing, secondary biochemical treatment is carried out to dyeing waste water；Step 3：Waste water after oxidative degradation is transported to regulating reservoir, carries out the regulation of water and the equilibrium of water quality herein, then Hydrolysis acidification pool is promoted to pump, hydrolysis acidification water outlet is from contact-oxidation pool is flowed into, through microbial action in contact-oxidation pool Enter sedimentation basin after removing most organic matters and colourity；Step 4：The removal of organic matter：Elastic solid filler is placed in pond, it is 0.02~0.55mg/ that dissolved oxygen DO is controlled in pond L, general gas-water ratio (7~10):1；Waste water is after hydrolysis acidification, and its biodegradability is greatly improved, and COD has declined；Step 5：Contact-oxidation pool is the main process for the treatment of of dyeing wastewater, and design water is 7~10mg/L, and elasticity is placed in pond Solid is filled up uses micro-pore aeration with semi-soft combined stuffing, its bottom；Step 6：The removal of colourity：To Containing Sulfur dyestuff and the dyeing waste water of Naphthol dyestuff, when PAC dosages increase to When 0.1% and 0.2%, its decolorizing efficiency accordingly will bring up to 94% and 96%；Step 7：Dyeing waste water is after coagulating kinetics, if water outlet still has deeper color and luster, it is necessary to further decolourizes.
- 2. the environment protection method of processing dyeing waste water according to claim 1, it is characterised in that：Hydrolysis in the step 1 Acidification pool control is in the acid fermentation stage, to improve the biodegradability of waste water.
- 3. the environment protection method of processing dyeing waste water according to claim 2, it is characterised in that：Precipitation in the step 2 Pond sludge is all back to hydrolysis acidification pool.
- 4. the environment protection method of processing dyeing waste water according to claim 3, it is characterised in that：Contact in the step 2 It is 9 × 8 × 5.0m to aoxidize pond body size.
- 5. the environment protection method of processing dyeing waste water according to claim 4, it is characterised in that：Decolouring in the step 6 It can be handled using oxidant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711337520.1A CN107857444A (en) | 2017-12-14 | 2017-12-14 | A kind of environment protection method for handling dyeing waste water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711337520.1A CN107857444A (en) | 2017-12-14 | 2017-12-14 | A kind of environment protection method for handling dyeing waste water |
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| CN107857444A true CN107857444A (en) | 2018-03-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108793615A (en) * | 2018-07-17 | 2018-11-13 | 海安县金鑫纸业有限公司 | A kind of wastewater treatment method of industrial cop tube paper |
| CN111675442A (en) * | 2020-06-28 | 2020-09-18 | 潮州市中乾环境科技有限公司 | Low-cost environment-friendly printing and dyeing wastewater treatment process |
| CN114368876A (en) * | 2022-01-10 | 2022-04-19 | 辽宁大学 | Process for treating printing and dyeing wastewater by using chemical-biofilm method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101638279A (en) * | 2008-07-29 | 2010-02-03 | 曾兆祥 | Method for treating sulfur-containing printing and dyeing wastewater |
| CN104230121A (en) * | 2014-09-29 | 2014-12-24 | 西安华陆环保设备有限公司 | Treatment method for printing and dyeing wastewater |
| CN104628215A (en) * | 2013-11-08 | 2015-05-20 | 青岛鑫益发工贸有限公司 | Environmentally friendly technology for treating printing and dyeing wastewater through contact oxidation process |
| CN106336089A (en) * | 2016-11-15 | 2017-01-18 | 重庆睿容环保科技有限公司 | Environment-friendly method for treating printing and dyeing wastewater |
-
2017
- 2017-12-14 CN CN201711337520.1A patent/CN107857444A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101638279A (en) * | 2008-07-29 | 2010-02-03 | 曾兆祥 | Method for treating sulfur-containing printing and dyeing wastewater |
| CN104628215A (en) * | 2013-11-08 | 2015-05-20 | 青岛鑫益发工贸有限公司 | Environmentally friendly technology for treating printing and dyeing wastewater through contact oxidation process |
| CN104230121A (en) * | 2014-09-29 | 2014-12-24 | 西安华陆环保设备有限公司 | Treatment method for printing and dyeing wastewater |
| CN106336089A (en) * | 2016-11-15 | 2017-01-18 | 重庆睿容环保科技有限公司 | Environment-friendly method for treating printing and dyeing wastewater |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108793615A (en) * | 2018-07-17 | 2018-11-13 | 海安县金鑫纸业有限公司 | A kind of wastewater treatment method of industrial cop tube paper |
| WO2020014944A1 (en) * | 2018-07-17 | 2020-01-23 | 海安县金鑫纸业有限公司 | Method for treating waste water of industrial paper cop tubes |
| CN111675442A (en) * | 2020-06-28 | 2020-09-18 | 潮州市中乾环境科技有限公司 | Low-cost environment-friendly printing and dyeing wastewater treatment process |
| CN114368876A (en) * | 2022-01-10 | 2022-04-19 | 辽宁大学 | Process for treating printing and dyeing wastewater by using chemical-biofilm method |
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Application publication date: 20180330 |