CN102923903A - Textile printing and dyeing wastewater processing technology - Google Patents
Textile printing and dyeing wastewater processing technology Download PDFInfo
- Publication number
- CN102923903A CN102923903A CN 201110231712 CN201110231712A CN102923903A CN 102923903 A CN102923903 A CN 102923903A CN 201110231712 CN201110231712 CN 201110231712 CN 201110231712 A CN201110231712 A CN 201110231712A CN 102923903 A CN102923903 A CN 102923903A
- Authority
- CN
- China
- Prior art keywords
- waste water
- controlled
- wastewater
- treatment
- sludge
- 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
Links
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to the technical field of textile, and especially relates to a textile printing and dyeing wastewater processing technology. The technology is characterized in that physical, biological and biological processing methods are adopted to carry out multiple processing operations of textile wastewater, and the processed wastewater can be discharged in a standard reaching manner and also can be returned to a workshop for recycle in order to reach a water cycling use purpose; the environmental conditions of a biological aeration tank comprise a dissolved oxygen of 3-4mg/L, a temperature of 35-40DEG C, a pH value of 7.5-8.5, a sludge settlement ratio of about 28% to about 32%, a sludge concentration of 2-4g/L, and a sludge volume index of 90-110ml/g; and the retention time of the wastewater in the biological aeration tank is 40-60h. The technology has the advantages of stable and reliable operation, low processing cost, simple operation and the like.
Description
Technical field
The present invention relates to textile technology field, relate in particular to a kind of technique for the treatment of textile dyeing waste water.
Background technology
According to incompletely statistics.China's dope dyeing wastewater discharge is about ten thousand stere every days 3,000,000～400, and 100 meters fabrics of the every processing of dyeing factory produce 3～5 cubic metres of wastewater flow rates.And, the dyeing waste-water complicated, the multiple organic dye difficult degradation that contains, colourity is dark, and environment is caused very serious threat.The pollution indexs such as the colourity of this class waste water, concentration of suspension, COD chemical oxygen demand (COD), BOD biochemical oxygen demand (BOD) are all very high, and because water quality and the water yield of waste water are all unstable, more difficult.Usually biochemical method is adopted in the processing of dyeing waste water, but often treatment effect is undesirable in actual moving process, its major cause is that Pollutants in Wastewater complicated component, the water yield change greatly, more there is the additive that adopts in some waste water treatment process to be unfavorable for the growth of biological respinse bacterial classification, reaches reuse or emission standard so adopt these methods to be difficult to make waste water to be done.
Summary of the invention
The objective of the invention is to be to provide a kind of technique for the treatment of textile dyeing waste water, overcome the deficiency of existing wastewater processing technology, for textile waste is provided by the new technical solution scheme that provides.
For achieving the above object, the process program that adopts is:
1, materialization is processed: the waste water that printing and dyeing workshop produces is disposed rubbish by grid, then the pH value that drops into acid or alkali control waste water is between 8.2～9.0, then add bodied ferric sulfate and carry out fade treatment, the waste water after fading is left standstill processing, make wherein larger suspended particle precipitation;
2, biochemical treatment: the organism in the dyeing waste water after process materialization with compatible anerobe (1) carries out anaerobic decomposition, makes to be difficult to biodegradable larger molecular organics in the waste water and to be converted into the small organic molecule that is easy to the biological biochemistry degraded; (2) waste water that will hold concurrently behind the oxygen is introduced agitated pool, makes the abundant mix and blend of itself and returnedactivatedsludge, contacts, adhesion; (3) waste water is introduced biochemical aeration tank, utilize the biofloculation bulk absorption in the pond, the organism in the Decomposition Wastewater; After microorganism is decomposed, waste water is introduced second pond, the active sludge biological flocs unit that precipitates in the waste water is back in the agitated pool; And waste water residence time in two ponds is 10～20 minutes.
The envrionment conditions of described biochemical aeration tank is controlled at:
1) dissolved oxygen 3～4mg/L,
2) temperature is 35 ℃～40 ℃,
3) between the pH value 7.5～8.5,
4) sludge settling ratio is controlled at about 28%～32%,
5) sludge concentration is controlled between 2～4g/L,
6) sludge volume index is controlled at 90～110ml/g;
Wherein waste water is 40～60 hours in the biochemical aeration tank residence time.
3, subsequent disposal: the thousandth dosing coagulant of pressing the clear liquid amount in the supernatant liquor after the biochemical treatment, remaining organic substance decomposing in the clear water, water are separated with mud, then use molten carbonated drink the suspended substance removal in the clear water, it is for subsequent use after filtering clear water to be introduced the reuse water clean water basin again.
Described coagulating agent is, in subsequent disposal, dosing coagulant carries out in the one-level air flotation pool in the clear liquid, its dissolved-air pressure is controlled in 3.8～4.5mpa scope, with molten carbonated drink a small amount of suspended substance removal in the clear water is carried out in the secondary air-floatation pond, its dissolved-air pressure is controlled in the 3.5-4.2mpa scope.
The present invention relates to comprehensive physical, chemistry, bioremediation, adopt the multiple tracks handling procedure, waste water not only reaches emission standard after treatment, also can be back to the workshop recycling, to reach the purpose of cycling use of water; That the present invention also has is stable, reliable, processing cost is low, simple operation and other advantages.
Embodiment
The present invention is specifically described as an example of certain textile printing and dyeing wastewater processing engineering example:
Example 1, a kind of technique for the treatment of textile dyeing waste water comprise materialization processing, biochemical treatment and subsequent disposal three parts:
(1) the materialization treatment process mainly is that the wastewater streams that printing and dyeing workshop produces is introduced equalizing tank behind grid, and input acid or alkali are controlled at about 8.5 the pH value of waste water in the equalizing tank again; Waste water is guided to reaction tank add bodied ferric sulfate, add-on is every premium on currency 0.8 gram bodied ferric sulfate, is the colourity reduction with dyeing waste water; Then waste water is introduced preliminary sedimentation tank, make the suspended substance precipitation, reduce wastewater temperature.
(2) biochemical processing process mainly is to utilize microorganism that waste water is carried out core processing, to remove organism wherein.Waste water after namely materialization being processed is introduced the oxygen compatibility pool that existence has facultative anaerobe, and the larger molecular organics in the waste water is carried out incomplete decomposing, has improved the BOD/COD value of waste water.Waste water after facultative anaerobe is processed flows into the mixed once agitated pool, churning time is about 15 minutes. again waste water is incorporated into secondary mix and blend pond, metabolism by microorganism, organism in the waste water obtains to decompose on the one hand, waste water also obtains processing, and synthesizes again on the other hand new cellular material.
Wherein the envrionment conditions of biochemical aeration tank is controlled at: 1) dissolved oxygen 2～4mg/L, 2) temperature is 35 ℃～40 ℃, 3) between the pH value 7.5～8.5,4) sludge settling ratio is controlled at about 30%, 5) sludge concentration is controlled between 2～4g/L, 6) sludge volume index is controlled at 100ml/g, and waste water is about 50 hours in the biochemical aeration tank residence time; After microorganism is decomposed, waste water is introduced second pond, be back in the mixed once agitated pool active sludge biological flocs unit that precipitates for subsequent use.
(3) subsequent treatment process is that the supernatant liquor after the biochemical treatment is processed, make it meet emission standard, when clear liquid is introduced the one-level air flotation pool, press the thousandth dosing coagulant of clear liquid amount, make mud and moisture from, its dissolved-air pressure is controlled in the 3.8-4.5mpa scope; Clear liquid is imported the secondary air-floatation pond again, remove suspended substance, dissolved-air pressure is controlled in the 3.5-4.2mpa scope, after the backflow clear water is offered the printing and dyeing workshop production and application again, to reach the purpose of cycling use of water.
Claims (2)
1. a technique for the treatment of textile dyeing waste water adopts materialization processing, biochemical treatment, three steps of subsequent disposal; It is characterized in that: described materialization is processed, and the pH value that drops into acid or alkali control waste water is between 8～9.Described biochemical treatment, the waste water residence time in two ponds is 10～20 minutes; The envrionment conditions of the aeration tank of described biochemical treatment is controlled at: dissolved oxygen 2～4mg/L, 350 ℃～400 ℃ of temperature, between the pH value 7.5～8.5, sludge settling ratio is controlled at 28%～32%, sludge concentration is controlled between 2～4g/L, and sludge volume index is controlled at 90～110ml/g; Wherein waste water is 40～60 hours in the biochemical aeration tank residence time.
2. a kind of technique for the treatment of textile dyeing waste water as claimed in claim 1 is characterized in that described subsequent disposal, it is characterized in that one-level air flotation pool dissolved-air pressure is controlled in 4～4.5mpa scope, and secondary air-floatation pond dissolved-air pressure is controlled in 3.5～4mpa scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110231712 CN102923903A (en) | 2011-08-09 | 2011-08-09 | Textile printing and dyeing wastewater processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110231712 CN102923903A (en) | 2011-08-09 | 2011-08-09 | Textile printing and dyeing wastewater processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102923903A true CN102923903A (en) | 2013-02-13 |
Family
ID=47638867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110231712 Pending CN102923903A (en) | 2011-08-09 | 2011-08-09 | Textile printing and dyeing wastewater processing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102923903A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086047A (en) * | 2014-07-16 | 2014-10-08 | 绍兴水处理发展有限公司 | Grading, upgrading and advanced treatment method for sewage |
| CN106477704A (en) * | 2016-10-08 | 2017-03-08 | 黄斌夫 | Waste water zero-emission method |
| CN108658365A (en) * | 2018-03-16 | 2018-10-16 | 望江硕丰汇锦科技有限公司 | A kind of combined type technique for the treatment of textile dyeing waste water |
| CN116265405A (en) * | 2022-09-30 | 2023-06-20 | 杭州鲲宸环境科技有限公司 | Textile processing wastewater treatment system |
-
2011
- 2011-08-09 CN CN 201110231712 patent/CN102923903A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086047A (en) * | 2014-07-16 | 2014-10-08 | 绍兴水处理发展有限公司 | Grading, upgrading and advanced treatment method for sewage |
| CN104086047B (en) * | 2014-07-16 | 2015-11-25 | 绍兴水处理发展有限公司 | A kind of sewage sub-prime carries mark and deep treatment method |
| CN106477704A (en) * | 2016-10-08 | 2017-03-08 | 黄斌夫 | Waste water zero-emission method |
| CN108658365A (en) * | 2018-03-16 | 2018-10-16 | 望江硕丰汇锦科技有限公司 | A kind of combined type technique for the treatment of textile dyeing waste water |
| CN116265405A (en) * | 2022-09-30 | 2023-06-20 | 杭州鲲宸环境科技有限公司 | Textile processing wastewater treatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101157510B (en) | Process for treating waste water produced during biofermentation method for producing penicillin and intermediate 6-APA process | |
| CN101549940B (en) | Technique of treating textile dyeing waste water | |
| CN102649616A (en) | Comprehensive treatment method for garbage leachate | |
| CN103508637B (en) | Traditional Chinese medicine wastewater treatment system and method for treating traditional Chinese medicine wastewater | |
| CN101618919A (en) | Method for processing waste water produced by caprolactam ammoximation process | |
| CN104671613B (en) | A kind for the treatment of process of percolate from garbage filling field | |
| Qi et al. | Resource recovery from liquid digestate of swine wastewater by an ultrafiltration membrane bioreactor (UF-MBR) and reverse osmosis (RO) process | |
| CN105417687A (en) | Method and device for performing combined treatment on sewage and bottom mud in black-odor riverway | |
| CN103936225A (en) | Coke wastewater advanced treatment method utilizing catalytic internal electrolysis technology and coupled two-stage bio-filter | |
| CN102659281B (en) | Treatment method of liquor production wastewater | |
| CN208471815U (en) | A kind of high-concentration sewage treatment system of AO technique and Fenton system support | |
| CN101955303B (en) | Treatment method of dye wastewater | |
| CN102730907A (en) | Deep treatment method for printing and dyeing industry production waste water | |
| CN103408201A (en) | Treatment method of industrial wastewater in silicon wafer mortar recovery | |
| CN102923903A (en) | Textile printing and dyeing wastewater processing technology | |
| CN103359873A (en) | Method for processing and recycling MBR-NF (membrane bioreactor-nanofiltration) antibiotic wastewater based on thick water backflow | |
| CN104211267A (en) | Method for treating organic pigment waste water containing high ammonia nitrogen and salinity | |
| CN101973659A (en) | Device and method for refining waste water by treating vitamin B12 by means of co-use of micro-electrolysis and physicochemical method | |
| CN100572296C (en) | A kind of method of yeast wastewater advanced treatment | |
| CN105668786B (en) | A kind of method and device of Sewage Biological Treatment strengthened denitrification | |
| CN102923891B (en) | Microelectrolysis combined process used for waste water treatment | |
| CN103435237A (en) | Pharmaceutical sewage treatment process | |
| CN103232134A (en) | Wastewater treatment method suitable for chemical industry | |
| CN109809630A (en) | A method of multi-pollutant in collaboration low consumption removal nitrogenous fertilizer waste water | |
| CN110627314A (en) | Method for efficiently removing total nitrogen in printing and dyeing wastewater by multi-process combination |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130213 |