CN1785844A - Biological anaerobic reactor of textile printing dyeing waste water - Google Patents

Biological anaerobic reactor of textile printing dyeing waste water Download PDF

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Publication number
CN1785844A
CN1785844A CNA2005101231019A CN200510123101A CN1785844A CN 1785844 A CN1785844 A CN 1785844A CN A2005101231019 A CNA2005101231019 A CN A2005101231019A CN 200510123101 A CN200510123101 A CN 200510123101A CN 1785844 A CN1785844 A CN 1785844A
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water
reactor
textile printing
waste water
dyeing waste
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CNA2005101231019A
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CN100368318C (en
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任洪强
严永红
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南京大学
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

The present invention relates to a textile, printing and dyeing waste water biological anaerobic reactor. It adopts an internal circulation upflow anaerobic reactor to remove chrominance of textile, printing and dyeing waste water. Said internal circulation upflow anaerobic reactor includes water-distributing zone, anaerobic reaction zone, solid liquid-gas three-phase separation zone and internal circulation device. In three-phase separation zone an internal circulation refluxing device is set, the internal circulation refluxing device includes a water-collecting device and a reflux power device. The internal circulation upflow reactor can be operated according to UASB and EGSB mode.

Description

A kind of biological anaerobic reactor of textile printing dyeing waste water
Technical field
The present invention relates to the wastewater biological anaerobic reactor, especially biological anaerobic reactor of textile printing dyeing waste water and application thereof, comprise its decolorizing process technique method.
Background technology
The wastewater biological anaerobic reactor is the very important key equipment of water treatment.Success and stable running in the various wastewater treatment process at present.
Textile printing and dyeing wastewater (comprising the waste water to the pre-treatment and the aftertreatment generation of fabric) component complexity often contains multiple dyestuff and various treatment agent, and colourity is dark, strong toxicity, difficult degradation, the pH fluctuation is big, and the concentration height, wastewater flow rate is big, is one of unmanageable trade effluent.One of textile printing and dyeing wastewater difficulty in treatment is difficult to remove for colourity, and the biological decolouring treatment process of textile printing and dyeing wastewater mainly utilizes microorganism to come oxidation or vat dyes molecule, destroys its unsaturated link(age) and chromophoric group.Treatment process can adopt aerobic method and anaerobic process, and anaerobic process to difficult degradation dyestuff such as azo-group, anthraquinonyl, tritane base decolorizing effect better.Existing anaerobic reactor (being mainly acidication) is difficult to adapt to the characteristics that the textile printing and dyeing wastewater variation water quality is big, the dyestuff kind is many, toxicity is high; Have also simultaneously that floor space is big, complex management, to shortcomings such as colourity and COD clearance are low.In recent years, development along with dyestuff and Auxiliaries Industry thereof, the usage quantity of macromole, multifunctional dye constantly increases, the raising that improvement of textile printing and dyeing process simultaneously and industry water saving require, the Pollutant levels and the colourity of textile printing and dyeing wastewater improve constantly, the textile printing and dyeing wastewater treatment technology has been proposed renewal, higher requirement, and conventional treatment process is difficult to satisfy the requirement up to standard of waste water.
Along with people to the going deep into of Anaerobic Microbiological Treatment Technology research, people develop to improve the concentration of anaerobic microorganisms and the residence time, reinforcing mass transfer effect, to shorten a series of high-rate anaerobic reactors of liquid residence time.Mainly contain anaerobic filter (AF), anaerobic fluidized bed (AFB) reactor, up-flow anaerobic sludge blanket (UASB) reactor etc., wherein with the UASB reactor as representative.People were in order to solve some problems such as short stream, dead angle and obstruction that the UASB reactor is in operation and occurs afterwards, the mixing that further strengthens anaerobion and waste water with contact, improve load and processing efficiency, enlarge the scope of application, people continue to have researched and developed novel reactor on its basis.Mainly contain anaerobic grain sludge expanded bed (EGSB), anaerobism inner circulation reactor (IC) etc.Organic concentration COD is generally at 1000~3000mg/L in the textile printing and dyeing wastewater, but the biodegradability of waste water is poor, factor of created gase is low, make when utilizing general UASB reactor as textile printing and dyeing wastewater biological decolouring technology, occurring easily between waste water and the active sludge can not thorough mixing, contact, thereby can't obtain efficient effect.And increased the rising flow stream velocity when adopting EGSB, IC reactor, though increased the abundant contact of solid, liquid two-phase, but need to form good granule sludge in the reactor, otherwise be easy to take place the danger of sludge loss, and the biodegradability of textile printing and dyeing wastewater is poor, toxic substance is more, be difficult to form the good granule sludge of sedimentation function, when therefore adopting conventional high efficiency anaerobic reactor to be used as textile printing and dyeing wastewater biological decolouring reactor, decolorizing effect is subjected to the influence of water quality, water yield variation, poor, the complex management of reactor operation stability easily.And the reactor of operational excellence must be that the anaerobic decolorization microbial growth creates good life condition, just can obtain efficient low-consume, stable effect.And for example CN97104496.1 anaerobic baffled reactor (ABR) is criticized the method processing textile printing and dyeing wastewater that sequencing batch reactor activated sludge reaction device (SBR) combines with preface.
Summary of the invention
The object of the invention is intended to improve to various waste water, the especially efficient of textile printing and dyeing wastewater biological decolouring anaerobic reactor, reduces the floor space of device and reduces cost.At above problem, the present invention proposes a kind of to various waste water, especially textile printing and dyeing wastewater carry out biological counter fill should or the method and the reactor of decoloring reaction, i.e. internal recycle upwelling anaerobic reactor.Be that the anaerobic decolorization microbial growth creates good life condition, can efficient low-consume, stable handle various waste water, especially textile printing and dyeing wastewater with the bio anaerobic reactive mode.
Technical solution of the present invention is: a kind of wastewater biological decoloring reaction device, it is the reactor that liquid is the upwelling form in the reactor vessel, reactor is followed successively by from bottom to top: water inlet pipe, water-distributing device 1, anaerobic reaction district 2, gas, liquid, solid three-phase separation area 3, inner circulating reflux device 4, go out water collection system 5, the bottom of reactor vessel is a water inlet pipe, the bending or the looped pipeline of big resistance water distribution manner adopted in top water outlet, water-distributing device; The header that goes out water collection system that is provided with is positioned at triphase separator top, be provided with inner circulating reflux device 4 in three-phase separation area or triphase separator 3, the inner circulating reflux device comprises captation and backflow power set, and recirculation water connects water-distributing device or is contained in reactor bottom from header by the power set pressurization.Power set is a reflux pump, and the pressurization by internal circulation pump enters water-distributing device from header and is contained in reactor bottom.The inner circulating reflux beguine is adjusted according to organic concentration height and aerogenesis situation in the waste water.Reaction zone is height-adjustable anaerobic mud bed, and anaerobic sludge can be cotton-shaped or particulate state, and the height of Sludge Bed can be adjusted according to entering organic matter of water concentration and inner circulating reflux ratio.The adjusting that can reflux of inner circulating reflux device.
The captation of inner circulating reflux device (as header or groove) is drawn recirculation water in the bottom of three-phase separation area (3) or from three-phase separation area.
The present invention can be used for various wastewater treatments, especially to being that the textile printing and dyeing wastewater biological decolouring has good effect.
Of the present inventionly go out water collection system top and be provided with collecting methane system 6.Comprise that also the anaerobic reaction district is height-adjustable anaerobic mud bed.
Reactor highly is 4~12m generally, and upflow velocity is 0.5~2m/h.The anaerobic pond bottom is a water distribution system, and water distribution system adopts short tube, and each short tube service area is 1~3m 2
The top, pond of anaerobic pond is triphase separator, and the water outlet circulation is positioned at reactor bottom, and reflux ratio is 50~200%.Reactor of the present invention can also adopt modular design, accomplishes commercialization, stdn and seriation.
Characteristics of the present invention are: can adopt inner circulating reflux mode and not reflux type operation at different waste water quality characteristics.This reactor inner circulating reflux ratio can be regulated reflux ratio according to arts demand, thereby makes flow stream velocity difference in this reactor, can select to adopt UASB (ascending manner is anaerobic mud bed) or EGSB (anaerobic grain expanded bed) mode to move in the anaerobic reaction district.DeR mainly takes place in sewage in the anaerobic reaction district, carry out solid, liquid, gas by triphase separator and separate.Because the inner circulating reflux header places below the triphase separator, thereby alleviated the pressure of triphase separator.The jet hybrid mode has been adopted in the cloth pool, strengthened the mixing mass transfer between muddy water, solved some problems such as short stream, dead angle and obstruction that the UASB reactor is in operation and occurs, the mixing that further strengthens anaerobion and waste water with contact, improve load and processing efficiency, enlarge the scope of application.
Description of drawings
Fig. 1 is a structural representation of the present invention
Water-distributing device 1, anaerobic reaction district 2, gas, liquid, solid three-phase separation area 3, inner circulating reflux device 4, go out water collection system 5, collecting methane system 6.
Embodiment
The present invention realizes by the following method: at first according to the waste water quality characteristics, when reactor start-up, the microbiobacterial agent or the mud of corresponding waste water is handled in inoculation, intake from reactor bottom, the anaerobic biodegradation reaction mainly takes place in pollutent in the anaerobic reaction district, carry out the separation of solid, liquid, gas then by triphase separator, the biogas of generation is discharged from the effuser at the top of reactor, gets back to the anaerobic reaction district through the isolating anaerobic sludge of triphase separator sedimentation again.The part water outlet of anaerobic zone can also be got back to the water inlet pipe of anaerobic zone by reflux, can regulate reflux ratio as required.By self refluxing of anaerobic zone, can reduce high density, deleterious textile printing and dyeing wastewater load impact on the one hand for reactor, improve the ability of the anti-high loading of reactor.On the other hand, can sewage fully be contacted with mud by the waterpower stirring, improve mass-transfer efficiency, make pollutent obtain efficient degradation, sewage colourity reduces greatly.
The present invention has following distinguishing feature: (1) can strengthen mud in the reactor, water mass transfer effect by the inner circulating reflux mode, thereby has improved the processing efficiency of total system.(2) the inner circulating reflux header is positioned at three separator bottoms, thereby pressure (3) reactor that has alleviated triphase separator can be kept very high sludge quantity, and sludge yield seldom even does not have mud and produces, and can significantly reduce working cost and investment cost.
In the actual woven treatment of dyeing wastewater process, water inlet COD=2000~3000mg/L, BOD 5=400~800mg/L, colourity is 500 times, and this reactor HRT is 12h, and the liquid upflow velocity is 1.5m/h in the anaerobic pond, and internal reflux ratio is 150%, the reactor effluent color dilution is lower than 120~150 times.
According to Fig. 1 technical process signal of the present invention is described.
Example 1: certain textile and dyeing industry district concentrates sewage work, design scale 30,000m 3/ d adopts inner-outer circulation anaerobic-anaerobic-aerobic-coagulation-settlement process, sewage treatment project design influent quality: COD900~2000mg/l, pH9~11,400 times of colourities, SS300mg/l; Anaerobism water outlet COD500~1200mg/l, BOD 510mg/l, pH9,120 times of colourities.
Example 2: certain textile and dyeing industry district concentrates sewage work, design scale 25,000m 3/ d adopts inner-outer circulation anaerobic-anaerobic-aerobic-coagulation-settlement process, sewage treatment project design influent quality: COD1500~3000mg/l, pH9~11,800~1500 times of colourities; Anaerobism water outlet COD900~1800mg/l, pH9,240 times of colourities.
The anaerobic reaction district for according to entering organic matter of water concentration and inner circulating reflux than regulating the anaerobic mud bed of height.Can be according to existing selection with UASB (ascending manner is anaerobic mud bed) or EGSB (anaerobic grain expanded bed) anaerobic reaction district.

Claims (10)

1, a kind of biological anaerobic reactor of textile printing dyeing waste water, it is the reactor that liquid is the upwelling form in the reactor vessel, reactor is followed successively by from bottom to top: water inlet pipe, water-distributing device (1), anaerobic reaction district (2), gas, liquid, Gu three-phase separation area (3), go out water collection system (5), go out water collection system and be positioned at triphase separator top, it is characterized in that three-phase separation area (3) is provided with inner circulating reflux device (4), the inner circulating reflux device comprises captation and backflow power set, and recirculation water connects water-distributing device or is contained in reactor bottom by the power set pressurization.
2,, it is characterized in that water-distributing device adopts the bending or the looped pipeline of big resistance water distribution manner by the described biological anaerobic reactor of textile printing dyeing waste water of claim 1.
3, by the described biological anaerobic reactor of textile printing dyeing waste water of claim 1, it is characterized in that the header that the inner circulating reflux device is provided with is positioned at the triphase separator bottom, inner circulating reflux device power set is the reflux cycle pump, and recirculation water enters water-distributing device by the pressurization of internal circulation pump from header.
4,, it is characterized in that inner circulating reflux than being adjustable by the described biological anaerobic reactor of textile printing dyeing waste water of claim 1.
5,, it is characterized in that water collection system top is provided with collecting methane system (6) by the described biological anaerobic reactor of textile printing dyeing waste water of claim 1.
6, by the described biological anaerobic reactor of textile printing dyeing waste water of claim 1, it is characterized in that the anaerobic reaction district for according to entering organic matter of water concentration and inner circulating reflux than regulating the anaerobic mud bed of height.
7, by the described biological anaerobic reactor of textile printing dyeing waste water of claim 1, it is characterized in that height for reactor is 4~12m, upflow velocity is 0.5~2m/h.
8, by the described biological anaerobic reactor of textile printing dyeing waste water of claim 1, it is characterized in that the anaerobic pond bottom is water distribution system device employing short tube, each short tube service area is 1~3m 2
9, by the described biological anaerobic reactor of textile printing dyeing waste water of claim 1, it is characterized in that the water pipe of internal circulation apparatus (4) is contained in reactor bottom, reflux ratio is 50~200%.
10,, it is characterized in that reactor adopts modular design, the standardization of products and seriation by the described biological anaerobic reactor of textile printing dyeing waste water of claim 1.
CNB2005101231019A 2005-12-15 2005-12-15 Biological anaerobic reactor of textile printing dyeing waste water Active CN100368318C (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100408487C (en) * 2006-10-16 2008-08-06 哈尔滨工业大学 Efficient composite anaerobic reactor for treating high-concentration organic waste water
CN101254993B (en) * 2008-04-08 2010-06-02 南京大学 Treatment method of pharmaceutical chemical industry park hybrid waste water
CN101962253A (en) * 2010-10-22 2011-02-02 中国林业科学研究院林产化学工业研究所 Three-stage three-cycle anaerobic reactor
CN102616928A (en) * 2012-03-21 2012-08-01 天津科技大学 Anaerobic fermentation reactor with efficient sedimentation backflow function
CN102923856A (en) * 2012-11-26 2013-02-13 博瑞德(南京)净化技术有限公司 Anaerobic reaction device and processing method for 1,4-butanediol chemical wastewater
CN103011516A (en) * 2012-12-13 2013-04-03 杭州绿色环保技术开发有限公司 Reactive printing wastewater treatment process and device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2110014U (en) * 1992-01-20 1992-07-15 王振声 Efficience anaerobic mixing reaction apparatus
CN2457141Y (en) * 2000-12-02 2001-10-31 深圳市宇力科技有限公司 Anaerobic fluidized bed waste water treatment device of high efficiency internal circulation active sludge
CN2581437Y (en) * 2002-10-25 2003-10-22 清华大学 Internal circulation anaerobic reactor
CN2574771Y (en) * 2002-10-25 2003-09-24 清华大学 Shower bath spring nozzle device
CN2732729Y (en) * 2004-09-01 2005-10-12 帕克环保技术(上海)有限公司 Internal-circulation anaerobic reactor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100408487C (en) * 2006-10-16 2008-08-06 哈尔滨工业大学 Efficient composite anaerobic reactor for treating high-concentration organic waste water
CN101254993B (en) * 2008-04-08 2010-06-02 南京大学 Treatment method of pharmaceutical chemical industry park hybrid waste water
CN101962253A (en) * 2010-10-22 2011-02-02 中国林业科学研究院林产化学工业研究所 Three-stage three-cycle anaerobic reactor
CN102616928A (en) * 2012-03-21 2012-08-01 天津科技大学 Anaerobic fermentation reactor with efficient sedimentation backflow function
CN102923856A (en) * 2012-11-26 2013-02-13 博瑞德(南京)净化技术有限公司 Anaerobic reaction device and processing method for 1,4-butanediol chemical wastewater
CN103011516A (en) * 2012-12-13 2013-04-03 杭州绿色环保技术开发有限公司 Reactive printing wastewater treatment process and device

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