CN102040314A - High-efficiency printing and dying waste water treatment process - Google Patents
High-efficiency printing and dying waste water treatment process Download PDFInfo
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- CN102040314A CN102040314A CN2010102941459A CN201010294145A CN102040314A CN 102040314 A CN102040314 A CN 102040314A CN 2010102941459 A CN2010102941459 A CN 2010102941459A CN 201010294145 A CN201010294145 A CN 201010294145A CN 102040314 A CN102040314 A CN 102040314A
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- waste water
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- dyeing waste
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Abstract
The invention provides a high-efficiency printing and dying waste water treatment process. The waste water treatment process comprises the following steps of: (a) regulating the pH value; (b) filtering for the first time; (c) decoloring; (d) filtering for the second time; (e) treating with an MBR (Meane Biological Reactor) membrane; and (f) carrying out reverse osmosis (RO) treatment. The high-efficiency printing and dying waste water treatment process has the advantages of compact links, simple and convenient operation and high treated water quality, can meet the requirement of production water recycling and is a high-quality, high-efficiency and stable waste water treatment process.
Description
Technical field
The present invention relates to a kind of printing-dyeing waste water treatment process, especially a kind of efficient height, the waste water treatment process that quality is high belong to field of printing and dyeing.
Background technology
Can produce the waste water of high pollution in the textile printing and dyeing production process, can cause huge pollution to environment if deal with improperly, by setting up sewage work, use method biochemical and that the materialization processing combines, reach and remove COD, BOD, SS, ammonia nitrogen, total nitrogen, total phosphorus, decolouring and disinfectant purpose, make it to reach emission standard.Waste water has generally that the water yield is big, colourity is high, characteristics such as structural constituent complexity, at present, the method of treatment of dyeing wastewater mainly contains: chemical coagulation process, biochemical treatment process and physical treatment process etc., these methods can both play the effect of purifying liquid waste to a certain extent, but all have certain shortcoming, and are simple as the chemical coagulation process operation, cause secondary pollution easily, biochemical treatment process is perfect not enough on the decolouring link.Therefore, it is perfect to set up a structure, the operation compactness, and the printing and dyeing wastewater treatment system that processing performance is good has certain realistic meaning.
In order to solve the problems of the technologies described above, China's utility model patent " 200510101734.X ", name is called " printing-dyeing waste water treatment process ", disclosed a kind of wastewater treatment treatment process, this kind processing step mainly comprises: regulate pH value, one-level filtration, decolouring flocculation, cascade filtration, oxidation and dehydration, this technology can reach decontamination index substantially, but the medicament and the electric energy that use in biochemical treatment and the physical treatment are higher, cost is higher, and step is more simultaneously, and efficient is low excessively.
Summary of the invention
At the demand, the invention provides a kind of efficient printing-dyeing waste water treatment process, by rational procedure arrangement, make the waste water that adopts this method to handle the back gained can reach the higher quality standard, simultaneously easy and simple to handle, medicament and power consumption are reasonable.
The present invention is a kind of efficient printing-dyeing waste water treatment process, and this waste water treatment process comprises the steps: that a. regulates pH value, and b. once filters, the c. processing of decolour, d. secondary filtration, the processing of e.MBR film, f. reverse-osmosis treated (RO).
In a preferred embodiment of the present invention, described each step is as follows:
A. regulate pH value, dyeing waste water is introduced regulated Buffer Pool, behind the adding acid-base solution pH value is adjusted to about 6-8;
B. once filter, draw the waste water in the Buffer Pool, make waste water flocculating behind the adding flocculating aids diatomite, then filter and remove suspended substances;
C. decolouring is handled, and makes waste water flocculating behind the adding discoloring agent polymerize aluminum chloride, and colourity is minimum reduces to 50;
D. secondary filtration uses filter screen to remove suspended substance, and removes the particle of particle greater than 10um by a plurality of filtering systems;
The e.MBR film is handled, and by membrane separation plant active sludge in the reaction tank and larger molecular organics matter is held back;
F. reverse-osmosis treated (RO) by reverse osmosis unit, is removed chemical ion, bacterium, fungi and virosome in the waste water, isolates clear water at last.
In a preferred embodiment of the present invention, the suspended substance that obtains after described twice filtration obtains harmless pie clod after press dewatering is handled.
In a preferred embodiment of the present invention, a plurality of filtration units in the described step (d) comprise activated carbon device (can remove peculiar smell in the water, chlorine residue, heavy metal ion, organic carcinogen etc.), Scale inhibitors chemicals dosing plant (scale forming matter such as calcium, magnesium forms dirt in can the minimizing system), accurate filter (further removing residual particles material in the water).
The present invention has disclosed a kind of efficient printing-dyeing waste water treatment process, this waste water treatment process link compactness, easy and simple to handle, and the water quality height after the processing can satisfy the requirement of producing reuse water, is a cover high quality, high-level efficiency, stable waste water treatment process.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
Fig. 1 is a kind of efficient printing-dyeing waste water treatment process schematic flow sheet of the embodiment of the invention;
Embodiment
In order to make those skilled in the art person understand technical scheme of the present invention better, and above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with embodiment and embodiment accompanying drawing.
As shown in Figure 1, be a kind of efficient printing-dyeing waste water treatment process schematic flow sheet of the embodiment of the invention, this waste water treatment process comprises the steps: that a. regulates pH value, b. once filter the c. processing of decolouring, d. secondary filtration, the e.MBR film is handled, f. reverse-osmosis treated (RO).
Embodiment:
Before the processing, the pH value of waste water is 10, and COD 2000, and BOD 400, and the SS suspended substance is 500, colourity 1000.
The concrete operations step is as follows:
A. regulate pH value, dyeing waste water introduce is regulated Buffer Pool, detect the pH value that obtains waste water, add pH value then and be 11 acid solution, pH value is adjusted to about 6-8 by detector;
B. once filter, draw the waste water in the Buffer Pool, adsorb colloidalmaterial behind the adding flocculating aids diatomite, and form the very high filter cake of voidage, filter then and remove;
C. decolouring is handled, and makes waste water flocculating behind the adding discoloring agent polymerize aluminum chloride, and colourity is minimum reduces to 50;
D. secondary filtration uses filter screen to remove suspended substance, and removes the particle of particle greater than 10um by a plurality of filtering systems.A plurality of filtration units comprise activated carbon device (can remove peculiar smell in the water, chlorine residue, heavy metal ion, organic carcinogen etc.), Scale inhibitors chemicals dosing plant (scale forming matter such as calcium, magnesium forms dirt in can the minimizing system), accurate filter (further removing residual particles material in the water).A plurality of filtration units comprise activated carbon device (can remove peculiar smell in the water, chlorine residue, heavy metal ion, organic carcinogen etc.), Scale inhibitors chemicals dosing plant (scale forming matter such as calcium, magnesium forms dirt in can the minimizing system), accurate filter (further removing residual particles material in the water).By above-mentioned processing, every index all has decline in the waste water, is respectively: pH value is 6-7, and COD 200, and BOD 80, and the SS suspended substance is 40, colourity 30;
The e.MBR film is handled, and by membrane separation plant active sludge in the reaction tank and larger molecular organics matter is held back.Every index is respectively in the waste water: pH value is 6-7, and COD 20, and BOD 10, and the SS suspended substance is 6, colourity 10;
F. reverse-osmosis treated (RO) by reverse osmosis unit, is removed chemical ion, bacterium, fungi and virosome in the waste water, isolates clear water at last.In the waste water every index finally be reduced to for: pH value is 6-7, and COD 2, and BOD 1.5, and the SS suspended substance is 0.8, colourity 2.
The main feature of a kind of efficient printing-dyeing waste water treatment process of the present invention is: this waste water treatment process link compactness, easy and simple to handle, water quality height after the processing, can satisfy the requirement of producing recycle-water, be a cover high-quality, high efficiency, stable waste water treatment process.
Protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses, and the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention. Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.
Claims (4)
1. efficient printing-dyeing waste water treatment process, this waste water treatment process comprise the steps: that a. regulates pH value, and b. once filters, the c. processing of decolour, d. secondary filtration, the processing of e.MBR film, f. reverse-osmosis treated (RO).
2. efficient printing-dyeing waste water treatment process according to claim 1 is characterized in that, described each step is as follows:
A. regulate pH value, dyeing waste water is introduced regulated Buffer Pool, behind the adding acid-base solution pH value is adjusted to about 6-8;
B. once filter, draw the waste water in the Buffer Pool, make waste water flocculating behind the adding flocculating aids diatomite, then filter and remove suspended substances;
C. decolouring is handled, and makes waste water flocculating behind the adding discoloring agent polymerize aluminum chloride, and colourity is minimum reduces to 50;
D. secondary filtration uses filter screen to remove suspended substance, and removes the particle of particle greater than 10um by a plurality of filtering systems;
The e.MBR film is handled, and by membrane separation plant active sludge in the reaction tank and larger molecular organics matter is held back;
F. reverse-osmosis treated (RO) by reverse osmosis unit, is removed chemical ion, bacterium, fungi and virosome in the waste water, isolates clear water at last.
3. efficient printing-dyeing waste water treatment process according to claim 2 is characterized in that, the suspended substance that obtains after described twice filtration obtains harmless pie clod after press dewatering is handled.
4. efficient printing-dyeing waste water treatment process according to claim 2, it is characterized in that a plurality of filtration units in the described step (d) comprise activated carbon device (can remove peculiar smell in the water, chlorine residue, heavy metal ion, organic carcinogen etc.), Scale inhibitors chemicals dosing plant (scale forming matter such as calcium, magnesium forms dirt in can the minimizing system), accurate filter (further removing residual particles material in the water).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102941459A CN102040314A (en) | 2010-09-27 | 2010-09-27 | High-efficiency printing and dying waste water treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102941459A CN102040314A (en) | 2010-09-27 | 2010-09-27 | High-efficiency printing and dying waste water treatment process |
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| CN102040314A true CN102040314A (en) | 2011-05-04 |
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| CN2010102941459A Pending CN102040314A (en) | 2010-09-27 | 2010-09-27 | High-efficiency printing and dying waste water treatment process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108658392A (en) * | 2018-06-11 | 2018-10-16 | 河南新野纺织股份有限公司 | A kind of high-tech environmental protection printing-dyeing waste water treatment process |
| CN110921921A (en) * | 2019-12-20 | 2020-03-27 | 宜宾海丝特纤维有限责任公司 | Colored silk viscose wastewater treatment process |
-
2010
- 2010-09-27 CN CN2010102941459A patent/CN102040314A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108658392A (en) * | 2018-06-11 | 2018-10-16 | 河南新野纺织股份有限公司 | A kind of high-tech environmental protection printing-dyeing waste water treatment process |
| CN110921921A (en) * | 2019-12-20 | 2020-03-27 | 宜宾海丝特纤维有限责任公司 | Colored silk viscose wastewater treatment process |
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Application publication date: 20110504 |