CN102417270A - Printing and dyeing wastewater treatment system - Google Patents
Printing and dyeing wastewater treatment system Download PDFInfo
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- CN102417270A CN102417270A CN2010102993097A CN201010299309A CN102417270A CN 102417270 A CN102417270 A CN 102417270A CN 2010102993097 A CN2010102993097 A CN 2010102993097A CN 201010299309 A CN201010299309 A CN 201010299309A CN 102417270 A CN102417270 A CN 102417270A
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Abstract
The invention belongs to the water treatment industry, and discloses a printing and dyeing wastewater treatment system. The system comprises a regulating tank, an anaerobic tank, a contact oxidation tank, a secondary sedimentation tank, a carbon fiber ionic membrane treatment device, a coagulating sedimentation tank (6), a middle tank, a filter, an ion exchange tower, a middle water recycling tank and a sludge thickener (12). According to the invention, the existing mature wastewater treatment device is optimally recombined, and by the measures of optimizing the anaerobic reaction tank, applying the carbon fiber ionic membrane treatment device in an advanced treatment system, and connecting a manganese sand filter, an ultrafilter and the ion exchange tower in series, not only the problem of advanced treatment of printing and dyeing wastewater is effectively solved, but also the COD(Chemical Oxygen Demand), chroma, SS(Suspended Solids), total hardness, pH and the like of the water all reach the water recycling standards in the printing and dyeing industry; and the cost of investment of the whole process disclosed by the invention is low, and the operating cost for treating 1 ton wastewater is only 2 yuan, which is 1/3 of that of the existing printing and dyeing wastewater recycling process.
Description
Technical field
The invention belongs to water treatment field, relate to a kind of printing and dyeing wastewater treatment system.
Background technology
Textile industry is the traditional mainstay industry of China, comprises 5 parts such as weaving, printing and dyeing, chemical fibre, the manufacturing of clothing and textile specific equipment.Along with fast development of national economy, the dyeing industry of China has also got into high-speed development period, and equipment and state of the art obviously promote, and production technique and equipment are brought in constant renewal in and regenerated, and the especially private printing and dyeing enterprise development of printing and dyeing enterprise very rapidly.
But there are certain gap in China's textile printing and dyeing industry technology, facilities and administration level and developed country, and the energy consumption of unit product, water consume bigger, like 250 tons of the about water consumptions of 1 ton of fabric of China's dyeing and finishing, are about 100 tons and German cotton is spinning.Textile industry year about 2,300,000,000 tons of water displacement, belong to the 5th of industrial water drainage, wherein mainly be dyeing and finishing wastewater; Particularly reclamation rate is less than 10%; For minimum in all industries of national economy, so the independent research energy-saving and emission-reduction, resource recovery, waste water advanced processing and reuse are very urgent tasks.Consider from the angle of enterprise self; Because the dual restrictive function of environmental capacity and water of productive use (directly translate into to enterprise supply water, the increasing substantially of draining quantitative limitation and water supply, effluent charge), the advanced treatment and the reuse of factory effluent also become the unique channel that enterprise's continuation develops.
Along with developing rapidly of dyestuffs industries, the increase day by day of the kind of fuel and quantity, the appearance of a large amount of fiber products; The employing of new chemical sizwe, dying material and finishing composition; Changed the character of dyeing waste water widely, increased its intractability, its COD concentration also rises to 2000～3000mg/L by original hundreds of mg/L; Thereby it is original biological treatment device COD clearance is dropped to about 50% from 70%, even lower.
The treatment system of China's dyeing waste water generally adopts apparatus for physical Chemical treating+biochemical treatment apparatus.If this system's treating water water quality is complicated, then the COD in the water outlet, colourity and salinity are all higher, directly enter water body and can bring potential hazard to environment, also can't satisfy the regeneration requirement of dyeing and printing process.In recent years, More and more factories begins to utilize various types of reverse osmosis membrane processing devices to carry out the processing and the degree of depth reuse of dyeing waste water, remove colourity, effectively to reduce aspect the COD effect comparatively satisfied.But the reverse osmosis membrane processing plant investment is big, and operation cost is higher, and to handle 1 ton of waste water, operation cost needs 5～6 yuan.
Summary of the invention
It is undesirable to the purpose of this invention is to provide the dyeing waste water advanced treatment effect that exists to prior art; The reverse osmosis membrane processing investment is big; The deficiency that operation cost is high provides a kind of treatment effect good, and the investment operation cost is merely the printing and dyeing wastewater treatment system of film processing cost 1/3.
The object of the invention is realized through following technical scheme:
A kind of printing and dyeing wastewater treatment system, this system comprises equalizing tank, anaerobic pond, contact-oxidation pool, second pond, charcoal fiber ionic membrane treatment unit, coagulative precipitation tank, middle pond, strainer, ion exchange tower, middle water reuse tank and sludge thickener; The equalizing tank water outlet links to each other with the water-in of anaerobic pond; The water outlet of anaerobic pond links to each other with the water-in of contact-oxidation pool, and the water outlet of contact-oxidation pool links to each other with the water-in of second pond, and the second pond water outlet links to each other with the water-in of charcoal fiber ionic membrane treatment unit; The water outlet of charcoal fiber ionic membrane treatment unit links to each other with the coagulative precipitation tank water-in; The coagulative precipitation tank water outlet links to each other with middle pond water-in, and middle pond water outlet links to each other with the strainer water-in, and the strainer water outlet links to each other with the ion exchange tower water-in; The ion exchange tower water outlet links to each other with middle water reuse tank water-in, water reuse pipeline during middle water reuse tank water outlet connects; Above-mentioned all connections are pipe connection.
Wherein, described anaerobic pond is a pulse anaerobic reactor.
Be provided with grid before the described equalizing tank, the grid water outlet links to each other with the equalizing tank water-in.
Pond in the middle of also being provided with one between described second pond and the charcoal fiber ionic membrane treatment unit, the second pond water outlet links to each other with middle pond water-in, and middle pond water outlet links to each other with charcoal fiber ionic membrane treatment unit water-in.
Described strainer is selected from least one in filtration with manganese sand device or the Stainless Steel Filter.
Described strainer preferably is composed in series by filtration with manganese sand device and Stainless Steel Filter; The water-in of filtration with manganese sand device links to each other with middle pond water outlet; The water outlet of filtration with manganese sand device links to each other with the Stainless Steel Filter water-in; The Stainless Steel Filter water outlet links to each other with the ion exchange tower water-in, and said connection is pipe connection.
This system also is provided with spent acid storage tank, alkali lye storage tank and regenerated liquid storage tank; The spent acid delivery port of spent acid storage tank links to each other with the medicament inlet of charcoal fiber ionic membrane treatment unit; The alkali lye delivery port of alkali lye storage tank links to each other with the coagulating agent of coagulative precipitation tank inlet; The regenerated liquid delivery port of regenerated liquid storage tank links to each other with the regenerated liquid of ion exchange tower inlet, and said connection is pipe connection.
The sludge outlet of described filtration with manganese sand device, Stainless Steel Filter, ion exchange tower all links to each other through pipeline with the mud inlet of equalizing tank and contact-oxidation pool.
The sludge outlet of described coagulative precipitation tank links to each other with the mud of sludge thickener inlet, and the supernatant outlet of described sludge thickener links to each other through pipeline with the mud inlet of equalizing tank.
Beneficial effect of the present invention:
The present invention adopts pulse anaerobic reactor to replace existing anaerobic reation pool; Pulse anaerobic reactor has need not use filler, can not produce sludge bulking, stable, cost of investment lacks 20～30% than reactor drum of the same type, saves the advantage of power 80%～90%.
The present invention is optimized combination again to existing sophisticated wastewater treatment equipment; The application of charcoal fiber ionic membrane treatment unit in optimization through anaerobic reation pool, the advanced treatment system; The measures such as series connection of filtration with manganese sand device, accurate filter, ion exchange tower; Not only efficiently solve dyeing waste water advanced treatment problem; COD, colourity, SS, total hardness, pH etc. all reach water reuse standard in the dyeing in the water quality, have solved the contradiction between printing and dyeing enterprise development and the pollutant emission, realize the target for energy-saving and emission-reduction of enterprise; And the cost of investment of a whole set of technology of the present invention is low, and operation cost is 1/3 of existing printing-dying wastewater recycling technology by handling only 2 yuan of 1 ton of waste water.
Description of drawings
Fig. 1 embodiment 1 described printing and dyeing wastewater treatment system.
1 is equalizing tank, and 2 is pulse anaerobic reactor, and 3 is contact-oxidation pool, and 4 is second pond, and 5 is charcoal fiber ionic membrane treatment unit; 6 is coagulative precipitation tank, and 7 is middle pond, and 8 is the filtration with manganese sand device, and 9 is Stainless Steel Filter; 10 is ion exchange tower, and 11 is middle water reuse tank, and 12 is sludge thickener, and 13 is the spent acid storage tank; 14 is the alkali lye storage tank, and 15 is the regenerated liquid storage tank, and 16 is middle pond, and 17 is grid.
Embodiment
Embodiment 1
A kind of printing and dyeing wastewater treatment system, this system comprises grid 17, equalizing tank 1, pulse anaerobic reactor 2, contact-oxidation pool 3, second pond 4, middle pond 16, charcoal fiber ionic membrane treatment unit 5, coagulative precipitation tank 6, middle pond 7, filtration with manganese sand device 8, Stainless Steel Filter 9, ion exchange tower 10, middle water reuse tank 11 and sludge thickener 12.
Grid 17 water outlets link to each other with equalizing tank 1 water-in; Equalizing tank 1 water outlet links to each other with the water-in of pulse anaerobic reactor 2; The water outlet of pulse anaerobic reactor 2 links to each other with the water-in of contact-oxidation pool 3, and the water outlet of contact-oxidation pool 3 links to each other with the water-in of second pond 4, and second pond 4 water outlets link to each other with middle pond 16 water-ins; Middle pond 16 water outlets link to each other with charcoal fiber ionic membrane treatment unit 5 water-ins; The water outlet of charcoal fiber ionic membrane treatment unit 5 links to each other with coagulative precipitation tank 6 water-ins, and coagulative precipitation tank 6 water outlets link to each other with middle pond 7 water-ins, and middle pond 7 water outlets link to each other with the water-in of filtration with manganese sand device 8; The water outlet of filtration with manganese sand device 8 links to each other with Stainless Steel Filter 9 water-ins; Stainless Steel Filter 9 water outlets link to each other with ion exchange tower 10 water-ins, and ion exchange tower 10 water outlets link to each other with middle water reuse tank 11 water-ins, water reuse pipeline during middle water reuse tank 11 water outlets connect; Above-mentioned all connections are pipe connection.
This system also is provided with spent acid storage tank 13, alkali lye storage tank 14 and regenerated liquid storage tank 15; The spent acid delivery port of spent acid storage tank 13 links to each other with the medicament inlet of charcoal fiber ionic membrane treatment unit 5; The alkali lye delivery port of alkali lye storage tank 14 links to each other with the coagulating agent of coagulative precipitation tank 6 inlet; The regenerated liquid delivery port of regenerated liquid storage tank 15 links to each other with the regenerated liquid of ion exchange tower 10 inlet, and said connection is pipe connection.
The sludge outlet of described filtration with manganese sand device 8, Stainless Steel Filter 9, ion exchange tower 10 all links to each other through pipeline with the mud inlet of equalizing tank 1 and contact-oxidation pool 3.
The sludge outlet of described coagulative precipitation tank 6 links to each other with the mud inlet of sludge thickener 12, and the supernatant outlet of described sludge thickener 12 links to each other through pipeline with the mud inlet of equalizing tank 1.
Technical process: dyeing waste water gets into equalizing tank again after the grid filtration of 2mm is removed the bigger impurity of particle, and waste water stirs fully and mixes at equalizing tank, with even water quality, the water yield, wastewater pH is reduced in 11.The equalizing tank water outlet is promoted to pulse anaerobic reactor through pump; Double oxygen animalcule in pulse anaerobic reactor in the active sludge carries out the acidification hydrolization effect to larger molecular organics, but is the small molecules biochemical substances with macromolecules degradation, improves the biodegradability of waste water; Through after the anaerobic treatment; The COD of waste water, colourity and SS reduce significantly, and water outlet is from flowing into biological contact oxidation pond, and most of organism obtains decomposing at biological contact oxidation pond in the waste water.The biological contact oxidation pond water outlet is carried out solid-liquid separation from flowing into second pond, and the sedimentary biological sludge part of second pond is back to contact-oxidation pool, and quantity of reflux is 70%, and excess sludge gets into equalizing tank; The second pond water outlet is promoted to charcoal fiber ionic membrane treatment unit with pump after adding spent acid adjusting pH to 5～6, carries out advanced treatment, removes the organism through the biochemical treatment difficult degradation.Water outlet after the charcoal fiber ionic membrane is handled transfers pH to 8～9 to get into coagulative precipitation tank 6 with milk of lime, in coagulation basin, adds Poly aluminum Chloride (PAC) and carries out flocculation sediment and solid-liquid separation as flocculation agent.The mud that coagulative precipitation tank 6 produces gets into sludge thickener 12, and the mud part in the sludge thickener 12 gets into equalizing tank, remainingly processes mud cake through pressure filter, mud cake outward transport safe disposal.Coagulative precipitation tank 6 waste water are promoted to the filtration with manganese sand device with pump and carry out deferrization and demanganization; The Stainless Steel Filter that gets into 3～10 μ m again filters; Remove by filter the suspended substance (SS) of waste water; Waste water after the filtration promptly obtains middle water after getting into the cation exchange tower desalination, need add the regenerated liquid saturated sodium-chloride when moving in the ion exchange tower.Middle water water reuse tank in flowing into, and replenish a part of fresh water to middle water reuse tank, rise to production plant with pump and carry out reuse.
Each process section effluent quality parameter is seen table 1.
Table 1
Embodiment recited above describes preferred implementation of the present invention; Be not that design of the present invention and scope are limited; Do not breaking away under the design concept prerequisite of the present invention; Common engineering technical personnel make technical scheme of the present invention in this area various modification and improvement all should fall into protection scope of the present invention, and the technology contents that the present invention asks for protection all is documented in claims.
Claims (9)
1. a printing and dyeing wastewater treatment system is characterized in that this system comprises equalizing tank (1), anaerobic pond (2), contact-oxidation pool (3), second pond (4), charcoal fiber ionic membrane treatment unit (5), coagulative precipitation tank (6), middle pond (7) and (16), strainer, ion exchange tower (10), middle water reuse tank (11) and sludge thickener (12); Equalizing tank (1) water outlet links to each other with the water-in of anaerobic pond; The water outlet of anaerobic pond links to each other with the water-in of contact-oxidation pool (3); The water outlet of contact-oxidation pool (3) links to each other with the water-in of second pond (4); Second pond (4) water outlet links to each other with the water-in of charcoal fiber ionic membrane treatment unit (5), and the water outlet of charcoal fiber ionic membrane treatment unit (5) links to each other with coagulative precipitation tank (6) water-in, and coagulative precipitation tank (6) water outlet links to each other with middle pond (7) water-in; Middle pond (7) water outlet links to each other with the strainer water-in; The strainer water outlet links to each other with ion exchange tower (10) water-in, and ion exchange tower (10) water outlet links to each other with middle water reuse tank (11) water-in, water reuse pipeline during middle water reuse tank (11) water outlet connects; Above-mentioned all connections are pipe connection.
2. printing and dyeing wastewater treatment system according to claim 1 is characterized in that described anaerobic pond (2) is a pulse anaerobic reactor.
3. printing and dyeing wastewater treatment system according to claim 1 is characterized in that the preceding grid (17) that is provided with of described equalizing tank (1), and grid (17) water outlet links to each other with equalizing tank (1) water-in.
4. printing and dyeing wastewater treatment system according to claim 1; Pond (16) in the middle of it is characterized in that also being provided with between described second pond (4) and the charcoal fiber ionic membrane treatment unit (5) one; Second pond (4) water outlet links to each other with middle pond (16) water-in; Middle pond water outlet links to each other with charcoal fiber ionic membrane treatment unit (5) water-in, and said connection is pipe connection.
5. printing and dyeing wastewater treatment system according to claim 1 is characterized in that described strainer is selected from least one in filtration with manganese sand device (8) or the Stainless Steel Filter (9).
6. printing and dyeing wastewater treatment system according to claim 5; It is characterized in that described strainer is composed in series by filtration with manganese sand device (8) and Stainless Steel Filter (9); The water-in of filtration with manganese sand device (8) links to each other with middle pond water outlet; The water outlet of filtration with manganese sand device (8) links to each other with Stainless Steel Filter (9) water-in, and Stainless Steel Filter (9) water outlet links to each other with ion exchange tower (10) water-in, and said connection is pipe connection.
7. printing and dyeing wastewater treatment system according to claim 1 is characterized in that this system also is provided with spent acid storage tank (13), alkali lye storage tank (14) and regenerated liquid storage tank (15); The spent acid delivery port of spent acid storage tank (13) links to each other with the medicament inlet of charcoal fiber ionic membrane treatment unit (5); The alkali lye delivery port of alkali lye storage tank (14) links to each other with the coagulating agent inlet of coagulative precipitation tank (6); The regenerated liquid delivery port of regenerated liquid storage tank (15) links to each other with the regenerated liquid inlet of ion exchange tower (10), and said connection is pipe connection.
8. printing and dyeing wastewater treatment system according to claim 1 is characterized in that the sludge outlet of described filtration with manganese sand device (8), Stainless Steel Filter (9), ion exchange tower (10) all links to each other through pipeline with the mud inlet of equalizing tank (1) and contact-oxidation pool (3).
9. printing and dyeing wastewater treatment system according to claim 1; The sludge outlet that it is characterized in that described coagulative precipitation tank (6) links to each other with the mud inlet of sludge thickener (12), and the supernatant outlet of sludge thickener (12) links to each other through pipeline with the mud inlet of equalizing tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102993097A CN102417270A (en) | 2010-09-27 | 2010-09-27 | Printing and dyeing wastewater treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102993097A CN102417270A (en) | 2010-09-27 | 2010-09-27 | Printing and dyeing wastewater treatment system |
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| CN102417270A true CN102417270A (en) | 2012-04-18 |
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| CN2010102993097A Pending CN102417270A (en) | 2010-09-27 | 2010-09-27 | Printing and dyeing wastewater treatment system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236666A (en) * | 2014-06-21 | 2016-01-13 | 高嵩 | Method for treating and recycling water-jet loom wastewater |
| CN105366893A (en) * | 2015-12-11 | 2016-03-02 | 东莞市富利环保有限公司 | Printing and dyeing wastewater treatment system and method thereof |
| CN112456739A (en) * | 2020-12-23 | 2021-03-09 | 晋江市维盛织造漂染有限公司 | Regeneration system of bleaching and dyeing clean sewage |
-
2010
- 2010-09-27 CN CN2010102993097A patent/CN102417270A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236666A (en) * | 2014-06-21 | 2016-01-13 | 高嵩 | Method for treating and recycling water-jet loom wastewater |
| CN105366893A (en) * | 2015-12-11 | 2016-03-02 | 东莞市富利环保有限公司 | Printing and dyeing wastewater treatment system and method thereof |
| CN112456739A (en) * | 2020-12-23 | 2021-03-09 | 晋江市维盛织造漂染有限公司 | Regeneration system of bleaching and dyeing clean sewage |
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Application publication date: 20120418 |