CN106336089A - Environment-friendly method for treating printing and dyeing wastewater - Google Patents
Environment-friendly method for treating printing and dyeing wastewater Download PDFInfo
- Publication number
- CN106336089A CN106336089A CN201611005023.7A CN201611005023A CN106336089A CN 106336089 A CN106336089 A CN 106336089A CN 201611005023 A CN201611005023 A CN 201611005023A CN 106336089 A CN106336089 A CN 106336089A
- Authority
- CN
- China
- Prior art keywords
- waste water
- pool
- dyeing waste
- water
- hydrolysis acidification
- 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.)
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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
- C02F1/001—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
-
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1221—Particular type of activated sludge processes comprising treatment of the recirculated sludge
-
- 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
- C02F3/2806—Anaerobic processes using solid supports for microorganisms
Abstract
The invention belongs to the technical field of environment protection and particularly relates to an environment-friendly method for treating printing and dyeing wastewater. The method specifically comprises the following steps that printing and dyeing wastewater passes through gratings to remove large suspended solids and flotage, then enters a regulating pool and then is lifted to a hydrolysis acidification pool with a pump; effluent obtained after hydrolysis acidification automatically flows into a contact oxidation pool, most organic substances and the color scale are removed in the contact oxidation pool through the microbial action, and then the effluent enters a settling pool; organic substances are removed, the contact oxidation pool serves as the body process of printing and dyeing wastewater treatment, elastic stereo filling and semi-soft combined filler is put in the pool, and the color scale is removed; after the printing and dyeing wastewater is treated through coagulating settling, further decoloring is needed if the effluent is still dark in color, and the method is used for solving the problem that the standard is difficult to meet with the current treatment technology.
Description
Technical field
The invention belongs to environmental technology field, specifically, it is a kind of environment protection method processing dyeing waste water.
Background technology
Industrial wastewater includes producing waste water and production waste, refers to waste water and the waste liquid producing in industrial processes, its
In containing the pollutant producing in the commercial production materials, intermediate product, side-product and the production process that outflow with water.With work
The developing rapidly of industry, 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 process of industrial wastewater is more even more important than the process of municipal sewage.
With the development of printing and dyeing industry, a large amount of fiber products occur, new chemical sizwe, dye material and finishing agent etc. should
With making the composition of dyeing waste water there occurs change, intractability increases, the simple water outlet cod of aerobic biological process for treating, color
Degree is difficult to up to standard, serious environment pollution, is the hydrolysis acidification that bioanalysises are combined with chemical method, catalytic oxidation, and coagulation process can solve
Determine this problem.
Content of the invention
The present invention seeks to having aimed to provide a kind of environment protection method processing dyeing waste water, for solving current process skill
Art is difficult to problem up to standard.
For realizing above-mentioned technical purpose, the technical solution used in the present invention is as follows:
A kind of environment protection method processing dyeing waste water, specifically includes following steps:
Step one: dyeing waste water enters regulating reservoir after grid removes larger float and floating thing, here is carried out
The regulation of the water yield and the equilibrium of water quality, are then promoted to hydrolysis acidification pool with pump；
Step 2: hydrolysis acidification water outlet, from flowing into contact-oxidation pool, removes absolutely through microbial action in contact-oxidation pool
Sedimentation tank is entered after most Organic substance and colourity；
Step 3: the removal of Organic substance: place elastic solid filler in pond, control in the pond in dissolved oxygen do for 0.01～
0.45mg/l, general gas-water ratio (8～9): 1；After hydrolysis acidification, its biodegradability is greatly improved waste water, and cod under
Fall；
Step 4: contact-oxidation pool is the main process for the treatment of of dyeing wastewater, design water is 5～8mg/l, places bullet in pond
Property solid is filled up and semi-soft combined stuffing, and its bottom adopts micro-pore aeration；
Step 5: the removal of colourity: the dyeing waste water to Containing Sulfur dyestuff and Naphthol dyestuff, when pac dosage increases
During to 0.09% and 0.2%, its decolorizing efficiency is accordingly brought up to 91% and 92%；
Step 6: dyeing waste water is after coagulating kinetics, if water outlet still has deeper color and luster it is necessary to decolour further.
Using the invention of technique scheme, this beneficial effect of the invention is: dyeing waste water is processed through hydrolysis acidification, gives up
The larger molecular organicses of the difficult degradation in water, resolve into simple small organic molecule, such as organic acid, alcohols, make waste water
Bod/cod improves, and improves the biodegradability of waste water, thus the pond decreasing follow-up Aerobic Process for Treatment holds, saves energy consumption；Contact
After oxidation pond goes out water precipitation, mud is all back to hydrolysis acidification pool, enters solubilising and shrink volumetric reaction, make residue in pond
Mud is greatly decreased, and can be easy to Direct Dehydration after excess sludge is concentrated；Biodegradability due to waste water improves, biological contact oxidation
Change organic removal rate accordingly to improve, water miscible cod is removed effectively, and cod, bod concentration of sedimentation tank water outlet is relatively
Low, coagulant charging quantity greatly reduces, and operating cost reduces；Decolour oxidation pond as the guarantee technique of color removal, if colourity
Can come into operation when up to standard, generally can surmount discharge.
, as the alternative techniques of conventional activated sludge process, its treatment effect is bright for hydrolysis acidification-catalytic oxidation-coagulation process
Aobvious be better than traditional handicraft, have the characteristics that energy consumption is low, sludge output is few, and excess sludge can Direct Dehydration；Coagulation is set after sedimentation tank
Sedimentation tank and decolouring oxidation pond, as tertiary treatment, can obtain preferable effluent quality, part water outlet can be back to production, this
Group technology is to improve the practicable method of disposal effect of dyeing wastewater.
Limit further, the hydrolysis acidification pool in described step one controlled in the acid fermentation stage, can with improve waste water
Biochemical.
Limit further, the clarifier sludge in described step 2 is all back to hydrolysis acidification pool.
Limit further, catalytic oxidation cell body a size of 9 × 8 × 5.0m in described step 2.
Limit further, the decolouring in described step 6 can be processed using oxidant.
Specific embodiment
In order that those skilled in the art may be better understood the present invention, with reference to embodiment to the technology of the present invention
Scheme further illustrates.
A kind of environment protection method processing dyeing waste water, specifically includes following steps:
Step one: dyeing waste water enters regulating reservoir after grid removes larger float and floating thing, here is carried out
The regulation of the water yield and the equilibrium of water quality, are then promoted to hydrolysis acidification pool with pump；
Step 2: hydrolysis acidification water outlet, from flowing into contact-oxidation pool, removes absolutely through microbial action in contact-oxidation pool
Sedimentation tank is entered after most Organic substance and colourity；
Step 3: the removal of Organic substance: place elastic solid filler in pond, control in the pond in dissolved oxygen do for 0.01～
0.45mg/l, general gas-water ratio (8～9): 1；After hydrolysis acidification, its biodegradability is greatly improved waste water, and cod under
Fall；
Step 4: contact-oxidation pool is the main process for the treatment of of dyeing wastewater, design water is 5～8mg/l, places bullet in pond
Property solid is filled up and semi-soft combined stuffing, and its bottom adopts micro-pore aeration；
Step 5: the removal of colourity: the dyeing waste water to Containing Sulfur dyestuff and Naphthol dyestuff, when pac dosage increases
During to 0.09% and 0.2%, its decolorizing efficiency is accordingly brought up to 91% and 92%；
Step 6: dyeing waste water is after coagulating kinetics, if water outlet still has deeper color and luster it is necessary to decolour further.
Hydrolysis acidification pool in preferred steps one controls in the acid fermentation stage, to improve the biodegradability of waste water.Actual
On, others can be selected as the case may be.
Clarifier sludge in preferred steps two is all back to hydrolysis acidification pool.In fact, can select as the case may be
Select other processing modes.
Catalytic oxidation cell body a size of 9 × 8 × 5.0m in preferred steps two.In fact, can select as the case may be
Other sizes.
Decolouring in preferred steps six can be processed using oxidant.In fact, others can be selected as the case may be
Processing mode.
Dyeing waste water is processed through hydrolysis acidification, and the larger molecular organicses of the difficult degradation in waste water resolve into simply little point
Sub- Organic substance, such as organic acid, alcohols, so that the bod/cod of waste water is improved, improve the biodegradability of waste water, thus after decreasing
The pond of continuous Aerobic Process for Treatment holds, and saves energy consumption；After contact-oxidation pool goes out water precipitation, mud is all back to hydrolysis acidification pool, in pond
Enter solubilising and shrink volumetric reaction, so that excess sludge is greatly decreased, after excess sludge is concentrated, can be easy to Direct Dehydration；Due to
The biodegradability of waste water improves, and bio-contact oxidation organic removal rate accordingly improves, and water miscible cod is gone effectively
Remove, cod, bod concentration of sedimentation tank water outlet is relatively low, and coagulant charging quantity greatly reduces, operating cost reduces；Decolouring oxidation pond
As the guarantee technique of color removal, if can come into operation when colourity is up to standard, discharge generally can be surmounted.
, as the alternative techniques of conventional activated sludge process, its treatment effect is bright for hydrolysis acidification-catalytic oxidation-coagulation process
Aobvious be better than traditional handicraft, have the characteristics that energy consumption is low, sludge output is few, and excess sludge can Direct Dehydration；Coagulation is set after sedimentation tank
Sedimentation tank and decolouring oxidation pond, as tertiary treatment, can obtain preferable effluent quality, part water outlet can be back to production, this
Group technology is to improve the practicable method of disposal effect of dyeing wastewater.
Above a kind of environment protection method of process dyeing waste water that the present invention provides is described in detail.Specific embodiment
Explanation be only intended to help and understand the method for the present invention and its core concept.It should be pointed out that it is common for the art
For technical staff, under the premise without departing from the principles of the invention, the present invention can also be carried out with some improvement and modify, these
Improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (5)
1. a kind of environment protection method processing dyeing waste water it is characterised in that: specifically include following steps:
Step one: dyeing waste water enters regulating reservoir after grid removes larger float and floating thing, here carries out the water yield
Regulation and water quality equilibrium, be then promoted to hydrolysis acidification pool with pump；
Step 2: hydrolysis acidification water outlet, from flowing into contact-oxidation pool, removes big absolutely portion through microbial action in contact-oxidation pool
Sedimentation tank is entered after the Organic substance dividing and colourity；
Step 3: the removal of Organic substance: place elastic solid filler in pond, control dissolved oxygen do to be 0.01～0.45mg/ in pond
L, general gas-water ratio (8～9): 1；After hydrolysis acidification, its biodegradability is greatly improved waste water, and cod has declined；
Step 4: contact-oxidation pool is the main process for the treatment of of dyeing wastewater, design water is 5～8mg/l, places elasticity vertical in pond
Body is filled up and semi-soft combined stuffing, and its bottom adopts micro-pore aeration；
Step 5: the removal of colourity: the dyeing waste water to Containing Sulfur dyestuff and Naphthol dyestuff, when pac dosage increases to
When 0.09% and 0.2%, its decolorizing efficiency is accordingly brought up to 91% and 92%；
Step 6: dyeing waste water is after coagulating kinetics, if water outlet still has deeper color and luster it is necessary to decolour further.
2. according to claim 1 process dyeing waste water environment protection method it is characterised in that: the hydrolysis in described step one
Acidification pool controls in the acid fermentation stage, to improve the biodegradability of waste water.
3. according to claim 2 process dyeing waste water environment protection method it is characterised in that: the precipitation in described step 2
Pond mud is all back to hydrolysis acidification pool.
4. according to claim 3 process dyeing waste water environment protection method it is characterised in that: the contact in described step 2
Oxidation cell body a size of 9 × 8 × 5.0m.
5. according to claim 4 process dyeing waste water environment protection method it is characterised in that: the decolouring in described step 6
Can be processed using oxidant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611005023.7A CN106336089A (en) | 2016-11-15 | 2016-11-15 | Environment-friendly method for treating printing and dyeing wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611005023.7A CN106336089A (en) | 2016-11-15 | 2016-11-15 | Environment-friendly method for treating printing and dyeing wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106336089A true CN106336089A (en) | 2017-01-18 |
Family
ID=57841898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611005023.7A Withdrawn CN106336089A (en) | 2016-11-15 | 2016-11-15 | Environment-friendly method for treating printing and dyeing wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106336089A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107857444A (en) * | 2017-12-14 | 2018-03-30 | 缪宜霖 | A kind of environment protection method for handling dyeing waste water |
| CN108862870A (en) * | 2018-07-17 | 2018-11-23 | 四川意龙科纺集团有限公司 | A kind for the treatment of method of printing and dying wastewater |
| CN111777280A (en) * | 2020-07-20 | 2020-10-16 | 南通艾爽纺织有限公司 | Sewage treatment process for printing and dyeing processing |
-
2016
- 2016-11-15 CN CN201611005023.7A patent/CN106336089A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107857444A (en) * | 2017-12-14 | 2018-03-30 | 缪宜霖 | A kind of environment protection method for handling dyeing waste water |
| CN108862870A (en) * | 2018-07-17 | 2018-11-23 | 四川意龙科纺集团有限公司 | A kind for the treatment of method of printing and dying wastewater |
| CN111777280A (en) * | 2020-07-20 | 2020-10-16 | 南通艾爽纺织有限公司 | Sewage treatment process for printing and dyeing processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170118 |