CN101798159A - Textile printing and dyeing wastewater treatment device and technology - Google Patents
Textile printing and dyeing wastewater treatment device and technology Download PDFInfo
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- CN101798159A CN101798159A CN201010136696A CN201010136696A CN101798159A CN 101798159 A CN101798159 A CN 101798159A CN 201010136696 A CN201010136696 A CN 201010136696A CN 201010136696 A CN201010136696 A CN 201010136696A CN 101798159 A CN101798159 A CN 101798159A
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention discloses a textile printing and dyeing wastewater treatment device and technology. The technology comprises the following steps: a first intake pump is used to pump wastewater into the bottom of a biological creeping bed, wastewater passes through a first biological haydite layer from bottom to top, the top effluent enters in a sedimentation and filtration ditch to precipitate, a second intake pump is used to pump the upper clear water into the ozone reaction area on the bottom of an ozone-aeration biological filter while 50-75mg/L of ozone is injected, then the reacted water passes through a second biological haydite layer from bottom to top, the clean water overflowing from the top enters a clear water reservoir, the clear water in the clear water reservoir is sent to the outside for emission or for advanced treatment and reuse. The invention has the advantages that the adhesion of microorganism in the system is good, the aeration rate is enough and enough biological concentration can be maintained, thus the volume load is increased, the sludge load is reduced, the amount of sludge can be obviously reduced; and as ozone is used to remove organics which are difficult to degrade, the entire technology is under the aerobic environment, sulfides generated in the anaerobe treatment process can be avoided and physical and chemical sludge generated in the coagulating sedimentation process can be eliminated.
Description
Technical field
The invention belongs to environment protection, water-treatment technology field, especially relate to a kind of device and technology of handling textile printing and dyeing wastewater.
Background technology
Textile printing and dyeing wastewater has that the water yield is big, organic pollutant content height, hard-degraded substance is many, colourity is high and characteristics such as component complexity, belongs to unmanageable trade effluent.Contain dyestuff, slurry, auxiliary agent, finish, soda acid, fiber impurity and inorganic salt etc. in the dyeing waste water, have bigger bio-toxicity, serious environment pollution.At present, the unit operation of treatment of dyeing wastewater can be divided into by principle both at home and abroad: physical treatment process (releasing rare method, natural sedimentation, filtration method, absorption method, centrifugal separation), method of chemical treatment (neutralisation, coacervation, oxidation style) and biological treatment (activated sludge process, spray filter tank method, biological oxidation process) three major types.
The dyeing waste water conventional treatment method is an activated sludge process, but can produce a large amount of active sludge in treating processes, has increased the expense that sludge treatment is disposed.The minimizing of mud is the focus of wastewater treatment research.Publication number makes the sludge digestion of generation, thereby reaches the effect of not producing mud or producing mud less for the CN1511795A Chinese patent literature discloses by mud being back to the technology that the acidication section is handled.Publication number is that the Chinese patent literature of CN151139155A is open with a kind of printing-dyeing waste water treatment process that does not produce mud, and it reaches the purpose of excess sludge zero release by the hydrolytic action of acidication section and the microorganism predation of catalytic oxidation section.
Yet, along with New-type adjuvant and dyestuff are used, in the actual dying treating processes, the single creature treatment process can not satisfy the requirement of sewage disposal, and therefore many combination treatment methods and technology are developed, wherein chemical coagulation and precipitation is because simple to operate, processing costs is low, and treatment effect is good and be widely applied in the wastewater treatment process, still, the chemical coagulation and precipitation process produces a large amount of chemical sludges, landfill disposal land occupation and have the risk of secondary pollution.
BAF is widely used in the advanced treatment process of sanitary sewage disposal and trade effluent, and gas-water ratio maintains (1-3) in operational process: (BAF Research progress in 1 scope, contemporary chemical industry, in February, 2009,38 1 phases of volume, 61-64).
Ozone oxidation is widely used in the degraded of various difficult waste water as a kind of high-level oxidation technology, and some investigators organically combine ozone oxidation and are applied in the various Waste Water Treatments with BAF.Publication number is that the Chinese patent literature of CN101323453A discloses a kind of wastewater treatment equipment based on ozone oxidation and BAF, and it is with ozonation technology and upward flow, BAF is effective combines to stream down; Publication number is water treatment device and the method that the Chinese patent literature of CN101070216A discloses a kind of integrated ozone and BAF, and ozone oxidation and biological filter are organically combined, and simplifies and removes aerating system.Publication number is method and the device that the Chinese patent literature of CN1792896A discloses a kind of BAF coupling ozone Oxidation Treatment petrifaction sewage, designs novel reaction unit and handles petrochemical wastewater.
Above-mentioned ozone oxidation of the prior art and BAF project organization complexity, and be used in the advanced treatment process of waste water physicochemical or biochemical treatment water outlet more, before ozone oxidation and BAF processing, still can produce more materialization or biochemical sludge, in addition, the fabrics printing and dyeing stage uses Sodium sulfate anhydrous.min(99) (sodium sulfate) as dyeing accelerant, cause containing in the dyeing waste water a large amount of sulfate ions, the treatment stage of anaerobic hydrolysis-acidification, vitriol is reduced to sulfide, the partial vulcanization thing is converted into hydrogen sulfide and escapes in the air that pollutes the water factory sky and neighboring area, the treatment stage of remaining in sulfide in the water and enter aerobe, consume a large amount of oxygen, influence water treatment effect.
Summary of the invention
The purpose of this invention is to provide a kind of flow process short, can effectively reduce discharging sludge quantity and hydrogen sulfide generation and burst size, energy consumption is low and a kind of textile printing and dyeing wastewater treatment device and the technology of environmental protection.
Technical solution of the present invention is: a kind of textile printing and dyeing wastewater treatment device, it comprises first intake pump of importing and exporting connection in sequential series, biology wriggling bed with first aeration tube, the precipitation buffering pond, second intake pump, ozone-BAF and clean water basin with second aeration tube, be provided with filter plate from bottom to top in the wherein biological wriggling bed, pebbles bed course and biological ceramic particle layer, ozone-BAF inside is provided with second filter plate that its inner chamber is separated into ozone reaction district and packing area, second filter plate top is provided with the second pebbles bed course and the second biological ceramic particle layer in turn, the filter plate below of biological wriggling bed is respectively equipped with water-in, be respectively equipped with water-in in the ozone reaction district in the back flushing mouth of a river and the back flushing gas port, ozone-BAF, the ozone import, the back flushing mouth of a river and back flushing gas port.
Microbiological deterioration through the organism in the waste water of biological wriggling bed is grown by the haydite surface attachment provides aerobic environment by first aeration tube, and organism is changed into CO
2The discharge system, water after the purification is gone out through the precipitation buffering pond and is entered in ozone one BAF behind the throw out, at first in the ozone reaction district, mix with ozone, the organism of difficult degradation is by the ozone oxidation cracking in the water body, though it is reacted through the aeration second biological ceramic particle layer, by further degrade organism in the water body of the microorganism of apposition growth on the haydite, the clear water after the purification enters clean water basin and recycles.Use ozone and bio-aeration filtering technique to combine, can remove colourity rapidly efficiently, make the organism generation open loop chain-breaking reaction of difficult degradation, improve the biodegradability of waste water, react completely, good purification, the bio-aeration filtering technique can keep higher biological concentration, improves volumetric loading, reduce sludge yield, whole process is an aerobic environment, significantly reduces the generation and the release of hydrogen sulfide, reduces the atmospheric pollution risk.
Described first aeration tube is positioned at 100-200mm place, described filter plate top, and described second aeration tube is positioned at 100-200mm place, described second filter plate top.Enough air can be provided, for the microorganism growth breeding provides aerobic environment, can form the gas shearing force in addition, keep the wriggling state of filler, control haydite surface biological film thickness keeps efficient bio-active and water treatment effect.
It also is provided with the backwash pump that import is communicated with described clean water basin, and this backwashing water pump outlet is the back flushing mouth of a river of described biological wriggle bed and ozone-BAF of pipe connection respectively.Recycle and handle the back clear water, reduce water resources consumption.
It also is provided with grid and regulates Buffer Pool, and the water outlet of wherein regulating Buffer Pool links to each other with described first intake pump inlet.Grid can be removed the suspended substance in the waste water, prevents obstruction, regulates Buffer Pool and can be used to regulate the water quality and the water yield, reduces the impact to biological treatment process, guarantees system stable operation.
Another technical solution of the present invention is: a kind of technique for the treatment of textile dyeing waste water, waste water is pressed into biological wriggling bed bottom by first intake pump, pass through the biological ceramic particle layer from bottom to up, the water outlet at top enters precipitation in the sedimentation and filtration ditch, the top clear water is pressed in the ozone reaction district of ozone-BAF bottom by second intake pump, and the ozone of feeding 50-75mg/L, reacted water is from bottom to top through the second biological ceramic particle layer, the clear water that overflows from the top enters clean water basin, the clear water of clean water basin is delivered to out-of-bounds reuse after discharging or the advanced treatment, feeding gas-water ratio in biology wriggling bed is 18-22: 1 aeration rate, feeding gas-water ratio in ozone-BAF is 8-10: 1 aeration rate.Microorganism adheres to well in the system, aeration rate is abundant, can keep sufficiently high biological concentration, thereby the raising volumetric loading reduces sludge loading, and sludge output can significantly reduce, remove the organism of difficult degradation owing to use ozone, whole technology is aerobic environment, has avoided the sulfide that produces in the anaerobic biological treatment process, has eliminated the materialized mud that produces in the precipitation process of coagulation.
Clear water in the described clean water basin is pumped into described biological wriggling bed by backwashing water and use as backwashing water ozone-BAF bottom.
Advantage of the present invention is: adhering to of microorganism is good, and matrix and gas-liquid-solid three-phase mix, and the control of aeration rate is easy, reaches the required operating parameters of technology operation easily.In addition, the biological ceramic particle surface irregularity helps adhering to, grow and breeding of microorganism, is particularly suitable for the cultivation of various microorganisms and the operation of technology thereof.Keep high biological concentration in the bio-reactor, thereby improved volumetric loading greatly, reduce sludge loading, and the biofilm treatment system sludge output is few.This technology can be avoided the sulfide (sulfonium ion, hydrogen sulfide) that produces in the anaerobic biological treatment process, eliminates simultaneously and produces a large amount of materialized muds in the precipitation process of coagulation.Treatment of dyeing and printing is applied widely, has pollutant removal preferably, and can suitably increase and decrease the ozone dosage as required.The used biological ceramic particle of system is cheap, resistance to wears, and long service life, simple to operate, operational management convenient, do not produce secondary pollution in system's operational process, has the environmental benefit and the social benefit of highly significant
Description of drawings
Accompanying drawing 1 is the structural representation of the embodiment of the invention;
Accompanying drawing 2 is a biological wriggling bed structure synoptic diagram in the embodiment of the invention;
Accompanying drawing 3 is the structural representation of ozone-BAF in the embodiment of the invention;
1, grid, 2, regulate Buffer Pool, 3, biological wriggling bed, 4, first intake pump, 5, the precipitation buffering pond, 6, second intake pump, 7, ozone-BAF, 8, the ozone reaction district, 9, the packing area, 10, clean water basin, 11, first aeration tube, 12, second aeration tube, 13, filter plate, 14, the pebbles bed course, 15, the biological ceramic particle layer, 16, second filter plate, 17, the second pebbles bed course, 18, the second biological ceramic particle layer, 19, backwash pump, 20, sludge pump, 21, ozonizer, 22, blower fan, 23, the backwashing water settling tank, 24, effluent weir, 25, strainer head, 26, second effluent weir, 27, second strainer head, 28, first gas meter, 29, second gas meter, 30, the backwashing water under meter.
Embodiment
Embodiment:
Consult Fig. 1,2 and 3, a kind of textile printing and dyeing wastewater treatment device, comprise the grid 1 that connects in turn, regulate Buffer Pool 2, first intake pump 4, biological wriggling bed 3, precipitation buffering pond 5, second intake pump 6, ozone-BAF 7, clean water basin 10, wherein the inlet duct of first intake pump 4 is communicated with adjusting Buffer Pool 2, outlet conduit connects biological wriggling bed 3 bottom water-ins, biological wriggling bed 3 inside are provided with filter plate 13, be provided with pebbles bed course 14 and biological ceramic particle layer 15 on it from bottom to top, 100-200mm place, filter plate 13 top is provided with first aeration tube 11, filter plate 13 is provided with strainer head 25, the top of biological wriggling bed 3 is provided with the effluent weir 24 that pipeline is communicated with precipitation buffering pond 5, precipitation buffering pond 5 top outlet conduits connect second intake pump, 6 inlets, the outlet conduit of second intake pump 6 connects the water-in of ozone-BAF 7 bottoms, be provided with second filter plate 16 that its inner chamber is divided into ozone reaction district 8 and packing area 9 in ozone-BAF 7, second filter plate, 16 tops are provided with the second pebbles bed course 17 and the second biological ceramic particle layer 18 from bottom to top, second filter plate 17 is provided with 100-200mm place, second strainer head 27, the second filter plates, 16 top and is provided with second aeration tube 12.Ozone-BAF 7 tops are provided with second effluent weir 26 that pipeline is communicated with clean water basin 10.Clean water basin 10 top water outlets are communicated with outside the battery limit (BL), outlet at bottom is communicated with backwash pump 19 inlets, backwash pump 19 outlet conduits connect the back flushing mouth of a river of biological wriggling bed 3 bottoms and the back flushing mouth of a river of ozone-BAF 7 bottoms respectively, and this backwashing water pipeline is provided with backwashing water under meter 30.Be provided with blower fan 22 in this device, its outlet is pipe connection first aeration tube 11 and second aeration tube 12 respectively, and the back flushing gas port of biological wriggling bed 3 bottoms and the back flushing gas port of ozone-BAF 7 bottoms, be used to provide aeration and backwash gas, on the gas piping that is communicated with first aeration tube 11 and second aeration tube 12, be respectively equipped with gas meter 28 and gas meter 29, be respectively applied for the measurement aeration rate.Precipitation buffering pond 5 bottom pipe are communicated with the inlet of sludge pump 20, and the outlet conduit of sludge pump 20 connects backwashing water settling tank 23.Also be provided with ozonizer 21 in this device, it is by the ozone generating area 8. of pipe connection ozone-BAF 7 bottoms
In the present embodiment, the biological ceramic particle layer 15 and the second biological ceramic particle layer 18 are filled the lightweight biological ceramic particle that particle diameter is 3-5mm respectively.Ozonizer uses the silent discharge method to make airborne partial oxygen cyclostrophic turn to the producer of ozone, can change ozone concn by the size of regulating electric power.
A kind of textile printing and dyeing sewage treatment process of the embodiment of the invention comprises biofilm cultivation and operation phase:
1, biofilm cultivation stage
Inoculation of activated-sludge on the biological ceramic particle of biology wriggling bed 3 and ozone-BAF 7, the organism that adds easy biochemical degradation with the sanitary sewage dilute sewage or in water inlet, improve the biodegradability of waste water, guarantee microorganism growth, perhaps inoculation of activated-sludge not, directly adopt starch, urea and potassium primary phosphate simulation water inlet, after vexed the exposing to the sun 3-5 days, low discharge water inlet and aeration prevent that the microbial film of apposition growth from being washed away, simultaneously, reduce sanitary sewage or the easy organic add-on of biochemical degradation gradually, make microorganism progressively adapt to waste water quality, after biofilm is finished, just can progressively strengthen flooding velocity, reach the load of setting operation.
2. commencement of commercial operation stage:
A. the external waste water in battery limit (BL) at first carries out the pre-treatment process through grid 1, adjusting Buffer Pool 2, and the suspended substance in the waste water is held back by grid 1, prevents to stop up in the subsequent processes; Can add acid or alkali according to the acid-basicity of waste water in regulating Buffer Pool 2, adjusting pH value (6.5-9.5) to about the neutrality is beneficial to microbial growth in the biological treatment process; Regulate Buffer Pool 2 all right regulating pondage and water quality, reduce impact, guarantee the steady running of system biological treatment process;
B. the waste water of pre-treatment process is pressed into biological wriggling bed 3 bottoms by first intake pump, via strainer head 25 uniform distribution, pass through the biological ceramic particle layer from bottom to up, feed gas-water ratios in first aeration tube 11 and be 20: 1 air, by the heterotrophic organism of apposition growth on the biological ceramic particle under aerobic condition with water in organism be converted into C0
2, water outlet simultaneously enters precipitation buffering pond 5 via effluent weir 24;
The clear water on c, 5 tops, precipitation buffering pond is pressed in the ozone reaction district 8 of ozone-BAF 7 bottoms by second intake pump 6, and the ozone of feeding 50-75mg/L, reacted water is from bottom to top through the second biological ceramic particle layer 18, and to feed gas-water ratios by second aeration tube 12 be 10: 1 air, the clear water that overflows from the top enters clean water basin 10, and the clear water in the clean water basin 10 is delivered to out-of-bounds and reclaimed;
D. backwash process, close the air intake valve of biological wriggling bed 3 or ozone-BAF 7 interior first aeration tubes 11 and second aeration tube 12, close biological wriggling bed 3 and the water inlet of ozone-BAF 7 and the valve on water outlet and the corresponding pipeline, open the valve on the back flushing gas port, regulate intake valve control back flushing tolerance, behind the air purge 3-5min, start the backwash pump 19 of clean water basin 10 bottoms, and the corresponding backwashing water imported valve of opening biological wriggling bed 3 or ozone-BAF 7 bottoms, regulate the water intaking valve control back flushing water yield, after air water is washed 3-5min, close the backwash gas pipeline valve, wash 3-5min separately, back flushing water outlet post precipitation is back in the backwashing water settling tank 13.The clear water on backwashing water settling tank 13 tops is recycled to be regulated in the Buffer Pool 2, and the mud of bottom is sent outside the system.
In the operational process, detect the aeration rate that enters in biological wriggling bed 3 and the ozone-BAF 7 respectively by first gas meter 28 and second gas meter 29 respectively.In the backwash process, the backwashing water flow of using by backwashing water under meter 30 Monitoring systemss.
Below further specify beneficial effect of the present invention by concrete experiment:
Adopt device and the cotton spinning dyeing waste water of art breading 720 kg/day and the composite waste of a small amount of sanitary sewage of the embodiment of the invention, the COD of water inlet and colourity are respectively 700-800mg/L and 512 times.
During operation, the biological ceramic particle layer hydraulic detention time of the biological wriggling bed 3 of control is respectively 15h, and aeration rate control gas-water ratio is 20: 1, and the backwashing period of biological wriggling bed is 4-5 days; The second biological ceramic particle layer hydraulic detention time of control ozone-BAF 7 is 8h, and aeration rate control gas-water ratio is 10: 1, and feeding the ozone concn gas concentration is 50-75mg/L, and backwashing period is 10-12 days; The COD of biological wriggling bed water outlet and colourity are respectively 200-300mg/L and 100 times, and the COD of system's final outflow water and colourity are lower than 100mg/L and 40 times respectively.
The backwash mode that adopts is air purge-air water and washes-wash, and gas-water ratio is 3: 1 during back flushing, and washing intensity is 5L/m
2S, the back flushing water loss is for producing about 10% of water, and the microbial film concentration that comes off in the backwashing water is at 2-3g/L, and settling property is good, and behind the mud mixture sedimentation 30min, sludge volume accounts for the per-cent SV of muddy water cumulative volume
30Be 11-12%, dewatered sludge output is 0.2-0.3g/m
3Sewage.
With reference to publication number is the disclosed application pre-treatment-biochemical treatment of CN101164923 Chinese patent literature-sludge treatment technique treatment of dyeing and printing technology, and total sludge yield is 0.648g/m
3(pre-treatment mud and conditioning back biochemical sludge output).The embodiment of the invention by comparison, sludge yield reduces more than 50%.
The water factory of existing textile printing and dyeing wastewater adopts the biochemical again technology of first materialization usually, its specific embodiment is that textile printing and dyeing wastewater is through grid, enter the conciliation Buffer Pool behind the pump well, in reconciling Buffer Pool, stop 7-16h, carry out water quality and quantity, the adjusting of temperature and pH, below general temperature and the pH regulator to 40 ℃ and between the 9-10, reconcile the Buffer Pool water outlet and pump into coagulative precipitation tank, add ferrous sulfate at coagulative precipitation tank, unslaked lime and polyacrylamide, impel suspended substance and colloidalmaterial precipitation in the waste water, throw out is delivered to sludge thickener, waste water stops 2-4h in settling tank, usually waste water COD concentration is 400-600mg/L at 600-900mg/L through COD concentration in the supernatant liquor of post precipitation, and the coagulative precipitation tank water outlet enters the anaerobic hydrolysis-acidification pond, filler is installed in the pond, increase the contact area of active sludge and waste water, waste water stops 8-14h in the anaerobic hydrolysis-acidification pond, after the acidication effect, wastewater biodegradability improves, and COD concentration slightly reduces; The hydrolysis acidification pool water outlet enters in the aerobic contact oxidation pond, the dissolved oxygen concentration in aerobic contact oxidation pond is greater than 2mg/L, the residence time is 10-14h, effluent COD concentration is about 120mg/L, the water outlet of aerobic contact oxidation pond is discharged through after second pond, sand filter and the dioxide peroxide oxidation, and the discharging effluent COD concentration is about 70mg/L.Above-mentioned technology day is handled water yield 20000m
3/ day, be about 100t/d through dewatered sludge output behind the filter press.And the printing-dyeing waste water treatment process of the use embodiment of the invention, mud water ratio behind filter press is 80%, the productive rate of mud is 120-180kg/m
3Sewage is according to 20000m
3The water factory in/sky is calculated, and dewatered sludge output is 24-36t/d, compares with the technology that existing first materialization is biochemical again, and the sludge yield after the use embodiment of the invention art breading can reduce more than 60%.
Above-listed detailed description is at the specifying of one of the present invention possible embodiments, and this embodiment is not in order to limiting claim of the present invention, and the equivalence that all the present invention of disengaging do is implemented or change, all should be contained in the claim of this case.
Claims (6)
1. textile printing and dyeing wastewater treatment device, it is characterized in that: it comprises first intake pump of importing and exporting connection in sequential series, biology wriggling bed with first aeration tube, the precipitation buffering pond, second intake pump, ozone-BAF and clean water basin with second aeration tube, be provided with filter plate from bottom to top in the wherein biological wriggling bed, pebbles bed course and biological ceramic particle layer, ozone-BAF inside is provided with second filter plate that its inner chamber is separated into ozone reaction district and packing area, second filter plate top is provided with the second pebbles bed course and the second biological ceramic particle layer in turn, the filter plate below of biological wriggling bed is respectively equipped with water-in, be respectively equipped with water-in in the ozone reaction district in the back flushing mouth of a river and the back flushing gas port, ozone-BAF, the ozone import, the back flushing mouth of a river and back flushing gas port.
2. a kind of textile printing and dyeing wastewater treatment device according to claim 1 is characterized in that: described first aeration tube is positioned at 100-200mm place, described filter plate top, and described second aeration tube is positioned at 100-200mm place, described second filter plate top.
3. a kind of textile printing and dyeing wastewater treatment device according to claim 1 and 2, it is characterized in that: it also is provided with the backwash pump that import is communicated with described clean water basin, and this backwashing water pump outlet is the back flushing mouth of a river of described biological wriggle bed and ozone-BAF of pipe connection respectively.
4. a kind of textile printing and dyeing wastewater treatment device according to claim 3 is characterized in that: it also is provided with grid and regulates Buffer Pool, and the water outlet of wherein regulating Buffer Pool links to each other with described first intake pump inlet.
5. technique for the treatment of textile dyeing waste water, it is characterized in that: waste water is pressed into biological wriggling bed bottom by first intake pump, pass through the biological ceramic particle layer from bottom to up, the water outlet at top enters precipitation in the sedimentation and filtration ditch, the top clear water is pressed in the ozone reaction district of ozone-BAF bottom by second intake pump, and the ozone of feeding 50-75mg/L, reacted water is from bottom to top through the second biological ceramic particle layer, the clear water that overflows from the top enters clean water basin, the clear water of clean water basin is delivered to out-of-bounds reuse after discharging or the advanced treatment, feeding gas-water ratio in biology wriggling bed is 18-22: 1 aeration rate, feeding gas-water ratio in ozone-BAF is 8-10: 1 aeration rate.
6. a kind of technique for the treatment of textile dyeing waste water according to claim 5 is characterized in that: the clear water in the described clean water basin is pumped into described biological wriggling bed by backwashing water and use as backwashing water ozone-BAF bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010136696A CN101798159A (en) | 2010-03-26 | 2010-03-26 | Textile printing and dyeing wastewater treatment device and technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010136696A CN101798159A (en) | 2010-03-26 | 2010-03-26 | Textile printing and dyeing wastewater treatment device and technology |
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| CN101798159A true CN101798159A (en) | 2010-08-11 |
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| CN201010136696A Pending CN101798159A (en) | 2010-03-26 | 2010-03-26 | Textile printing and dyeing wastewater treatment device and technology |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104075910A (en) * | 2014-06-30 | 2014-10-01 | 宣尧杭 | Sampling detection device for printing and dyeing wastewater treatment system |
| CN107337268A (en) * | 2017-08-17 | 2017-11-10 | 广东益康生环保科技有限公司 | A kind of BAF |
| CN108624340A (en) * | 2017-03-16 | 2018-10-09 | 邢台旭阳科技有限公司 | Wet method coke pressure quenching system and coke quenching method |
| RU2817552C1 (en) * | 2023-05-19 | 2024-04-16 | Общество с ограниченной ответственностью "Первая ткацкая фабрика" | Water supply and drainage system in weaving production |
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| CN1724420A (en) * | 2005-06-14 | 2006-01-25 | 华南理工大学 | Process for combined water treatment of chemical oxidizing-biological biological filtering tank |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075910A (en) * | 2014-06-30 | 2014-10-01 | 宣尧杭 | Sampling detection device for printing and dyeing wastewater treatment system |
| CN108624340A (en) * | 2017-03-16 | 2018-10-09 | 邢台旭阳科技有限公司 | Wet method coke pressure quenching system and coke quenching method |
| CN107337268A (en) * | 2017-08-17 | 2017-11-10 | 广东益康生环保科技有限公司 | A kind of BAF |
| RU2817552C1 (en) * | 2023-05-19 | 2024-04-16 | Общество с ограниченной ответственностью "Первая ткацкая фабрика" | Water supply and drainage system in weaving production |
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Application publication date: 20100811 |