CN1686863A - Technique of biological treatment for wastewater of carbonization - Google Patents

Technique of biological treatment for wastewater of carbonization Download PDF

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Publication number
CN1686863A
CN1686863A CNA2005100124344A CN200510012434A CN1686863A CN 1686863 A CN1686863 A CN 1686863A CN A2005100124344 A CNA2005100124344 A CN A2005100124344A CN 200510012434 A CN200510012434 A CN 200510012434A CN 1686863 A CN1686863 A CN 1686863A
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reactor
filler
anoxic
baf
treatment
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CN1296293C (en
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李亚新
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Taiyuan University of Technology
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    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

The present invention relates to a coker waste water biological treatment, and is characterized by that it is a process adopting biological membrane method and utilizing anaerobic treatment, anoxybiotic treatment and two aerobic treatment stages to treat coker waste water, said process equipment is formed from four reactors including anaerobic hydrolysis acidification reactor, up-flowing anoxybiotic reactor, first aerobic biological reactor and second aerobic biological reactor. Said invention also provides the concrete steps of said waste water treatment process and its process condition.

Description

A kind of technology of coking chemical waste water biological treatment
One, technical field
The technology of a kind of coking chemical waste water biological treatment of the present invention belongs to environment protection and technical field of waste water processing.Specifically, be to adopt biomembrance process to come the technology of Treatment of Wastewater in Coking.
Two. technical background
Coking chemical waste water derives from washing water in coke-oven plant's production process, wash dried up and storage tank draining of branch behind carbonated drink, the steam distillation etc.The waste water complicated component contains the large number of biological hardly degraded organic substance.Be mainly aromatic series organism, heterocycle and many ring organism.Coking chemical waste water is again to contain high density NH in addition 3The waste water of-N.
Biological treatment is still at present the main method of wastewater treatment in coke-oven plant mostly, wherein with A 2/ O process application is maximum.Present A 2/ O Treatment of Wastewater in Coking COD and NH 3-N is difficult to reach simultaneously national sewage comprehensive emission standard (GB9878-1996) primary standard: i.e. COD100mg/L, NH 3-N15mg/L.NH particularly 3-N severe overweight.Major cause is: 1. aerobic reactor water inlet COD concentration height is that nutraceutical heterotrophic bacteria is a dominant bacteria with the carbon source organism, has suppressed the growth of nitrifier.And contain the higher Biostatic organism of concentration in the water inlet, and also having suppressed the activity of nitrifier, aerobic reactor (O pond) biological nitration effect is poor, water outlet NH 3-N is difficult to up to standard.
Adopt biological membrane anaerobic (acidication)-anoxic denitrification-one-level aerobic-secondary aerobic process (A 2/ O 2) Treatment of Wastewater in Coking, treat effluent COD and NH 3-N can reach national sewage comprehensive emission standard (GB9878-1996) primary standard simultaneously.Aerobic section adopts two-stage aerobic biological treatment, O 1Section is to remove COD, O 2Section is owing to carbonaceous organic material in the water inlet is lower, and nitrifier can become dominant bacteria, simultaneously because O 2There is inhibiting organic concentration also lower to nitrifier in the section, O 2The activity of nitrifier also is higher than the activity of nitrifier in the single aerobic section in the section.O 2Section is BAF (also claim biological aerated filter, adopt BAF in this specification sheets), owing to along the layering of packed height biophase, help forming nitrifier advantage section at certain altitude, thereby improve nitrification effect.
Three. summary of the invention
The technology of a kind of coking chemical waste water biological treatment of the present invention, purpose is effective Treatment of Wastewater in Coking, makes water outlet COD and NH 3-N can reach national sewage comprehensive emission standard (GB9878-1996) primary standard simultaneously, thereby discloses the technical scheme of a kind of biomembrance process anaerobic/anoxic/two sections aerobe Treatment of Wastewater in Coking technologies.
The technology of a kind of coking chemical waste water biological treatment of the present invention is characterized in that it being a kind of technology that adopts the anaerobic/anoxic/two section aerobe Treatment of Wastewater in Coking of biomembrance process:
I. coking chemical waste water biological treatment flow path device is made up of four reactors, enter anaerobic hydrolysis acidification reactor 2, up flow type anoxic reactor 3, the first aerobe reactor biological contact oxidation pond 4, the second aerobe reactor BAF 5 successively through the pretreated coking chemical waste water 1 of physics, then the second aerobe reactor BAF, 5 effluent recyclings are to up flow type anoxic reactor 3;
II. four reactors all are biofilm reactor
III. the aerobe treatment unit is made up of the two-stage aerobic reactors in series, first aerobic reactor is a biological contact oxidation pond 4, second aerobe reactor is BAF 5, raw material: anaerobic hydrolysis acidification reactor 2 fillers: haydite, gac, coke or zeolite particulate filler; Rubble or slag block filler; Raschig ring, Pall ring, plastics Ball-type packing, semi soft packing or elastic solid filler, up flow type anoxic reactor 3 fillers: haydite, gac, coke, quartz sand, hard coal or zeolite particulate filler; Raschig ring, Pall ring, plastics Ball-type packing, semi soft packing or elastic solid filler, the first aerobic reactor biological contact oxidation pond, 4 fillers: plastics Ball-type packing, semi soft packing or elastic solid filler, the second aerobe reactor BAF, 5 fillers: haydite, gac, coke, zeolite, quartz sand, hard coal, heaving shales or expansion silicoaluminate rock particulate filler; Light plastic polyethylene, the synthetic body plan of polystyrene, plastic module, condition: when the A. reactor adopted particulate filler, the grain size scope was 1～7mm, the grain size scope is 20～80mm when adopting block filler; The filler volume equals the product of hydraulic detention time and wastewater flow in the reactor, B. because each coke-oven plant's water quality has a great difference, the processing parameter of four reactors should determine that reactor design volumetrical basic technology parameter is by test when adopting biomembrance process anaerobic/anoxic/two sections aerobic process Treatment of Wastewater in Coking:
Anaerobic hydrolysis acidification reactor 2 hydraulic detention time 4-12h;
Up flow type anoxic reactor 3 hydraulic detention time 9-30h;
Contact oxidation reactor pond 4 hydraulic detention time 12-35h;
BAF 5 hydraulic detention time 12-35h;
BAF 5 effluent recyclings are to upflowing anoxic reacter 3, reflux ratio 2: 1～6: 1.
The advantage and the purposes of a kind of two sections aerobic treatment coking chemical waste water technologies of the present invention:
1) the coking chemical waste water biodegradability is poor, and variation water quality is big, and four reactors all adopt biofilm reactor, and making has higher microbial biomass in each reactor, makes it have higher volumetric loading and stronger capacity of resisting impact load.
2) the acidication bacterium is difficult to form more closely knit flocs unit, at A 2Acidication bacterium in/O (anaerobic/anoxic/aerobic) Activated Sludge Process in the anaerobic reactor is very easily run off, and causes the acidication bacteria concentration in the anaerobic reactor low, makes anaerobic reactor acidication efficient low.Anaerobism (acidication) reactor adopts the concentration of the acidication bacterium that the biomembrance process structures help keeping higher in reactor.
3) the anoxic section adopts up flow type anoxic reactor, and when loading Raschig ring, Pall ring, plastics Ball-type packing, semi soft packing, elastic solid filler in the reactor, the nitrogen that updraft fluidised form helps the denitrification process generation disengages.Load filler in the anoxic reacter, make fluidised form in the reactor, can reduce in the second stage aerobic reactor backflow nitrification liquid dissolved oxygen denitrifying interference and inhibition comparatively near the pulling flow type fluidised form.
4) aerobic section adopts two-stage aerobic biological treatment, O 1Section is to remove COD, O 2Section is owing to carbonaceous organic material in the water inlet is lower, and nitrifier can become dominant bacteria, simultaneously because O 2There is inhibiting organic concentration also lower to nitrifier in the section, O 2The activity of nitrifier also is higher than the activity of nitrifier in the single aerobic section in the section.
5) O 2Section is a BAF.Owing to, help in packing layer, forming nitrifier advantage section in the certain altitude, thereby improve nitrification effect along the layering of packed height microorganism phase.
6) adopt biomembrance process anaerobic/anoxic/two sections aerobic process (process design parameter should be determined by test) to after handling through the physical method preprocessing coking wastewater, water outlet COD and NH 3-N can reach national sewage comprehensive emission standard (GB9878-1996) primary standard simultaneously.
Four. description of drawings
The process flow sheet of Fig. 1 coking chemical waste water biological treatment
Number in the figure is: 1-is through the pretreated coking chemical waste water of physical method
The 2-anaerobic hydrolysis acidification reactor
The 3-up flow type anoxic reactor
The 4-biological contact oxidation pond
The 5-BAF
The 6-nitrification liquid refluxes
The 7-water outlet of carrying out a biological disposal upon
Five. embodiment
Embodiment 1: anaerobic hydrolysis acidification reactor hydraulic detention time 4h;
Up flow type anoxic reactor hydraulic detention time 9h;
Biological contact oxidation pond hydraulic detention time 12h;
BAF hydraulic detention time 12h;
Upflowing BAF effluent recycling is to the anoxic packed column reactor, reflux ratio 2: 1.
Embodiment 2: anaerobic hydrolysis acidification reactor hydraulic detention time 6h;
Up flow type anoxic reactor hydraulic detention time 15h;
Biological contact oxidation pond hydraulic detention time 18h;
BAF hydraulic detention time 24h;
Upflowing BAF effluent recycling is to the anoxic packed column reactor, reflux ratio 4: 1.
Embodiment 3: anaerobic hydrolysis acidification reactor hydraulic detention time 12h;
Up flow type anoxic reactor hydraulic detention time 30h;
Biological contact oxidation pond hydraulic detention time 35h;
BAF hydraulic detention time 35h;
Upflowing BAF effluent recycling is to the anoxic packed column reactor, reflux ratio 4: 1.

Claims (1)

1. the technology of coking chemical waste water biological treatment is characterized in that it being a kind of technology that adopts the anaerobic/anoxic/two section aerobe Treatment of Wastewater in Coking of biomembrance process:
I. coking chemical waste water biological treatment flow path device is made up of 4 reactors, enter anaerobic hydrolysis acidification reactor (2), up flow type anoxic reactor (3), the first aerobe reactor biological contact oxidation pond (4), the second aerobe reactor BAF (5) successively through the pretreated coking chemical waste water of physics (1), then second aerobe reactor BAF (5) effluent recycling is to up flow type anoxic reactor (3);
II.4 reactor all is biofilm reactor
III. the aerobe treatment unit is made up of the two-stage aerobic reactors in series, first aerobic reactor is biological contact oxidation pond (4), second aerobe reactor is BAF (5), raw material: anaerobic hydrolysis acidification reactor (2) filler: haydite, gac, coke or zeolite particulate filler; Rubble or slag block filler; Raschig ring, Pall ring, plastics Ball-type packing, semi soft packing or elastic solid filler, up flow type anoxic reactor (3) filler: haydite, gac, coke, quartz sand, hard coal or zeolite particulate filler; Raschig ring, Pall ring, plastics Ball-type packing, semi soft packing or elastic solid filler, first aerobic reactor biological contact oxidation pond (4) filler: plastics Ball-type packing, semi soft packing or elastic solid filler, second aerobe reactor BAF (5) filler: haydite, gac, coke, zeolite, quartz sand, hard coal, heaving shales or expansion silicoaluminate rock particulate filler; Light plastic polyethylene, the synthetic body plan of polystyrene, plastic module, condition: when the A. reactor adopted particulate filler, the grain size scope was 1～7mm, the grain size scope is 20～80mm when adopting block filler; The filler volume equals the product of hydraulic detention time and wastewater flow in the reactor, B. because each coke-oven plant's water quality has a great difference, the processing parameter of 4 reactors should determine that reactor design volumetrical basic technology parameter is by test when adopting biomembrance process anaerobic/anoxic/two sections aerobic process Treatment of Wastewater in Coking:
Anaerobic hydrolysis acidification reactor (2) hydraulic detention time 4-12h;
Up flow type anoxic reactor (3) hydraulic detention time 9-30h;
Contact oxidation reactor pond (4) hydraulic detention time 12-35h;
BAF (5) hydraulic detention time 12-35h;
BAF (5) effluent recycling is to upflowing anoxic reacter (3), reflux ratio 2: 1～6: 1.
CNB2005100124344A 2005-04-05 2005-04-05 Technique of biological treatment for wastewater of carbonization Expired - Fee Related CN1296293C (en)

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CN100391876C (en) * 2006-11-21 2008-06-04 南京大学 Method for treating wastewater of terephthalic acid by using aerating bio filter
CN101254993B (en) * 2008-04-08 2010-06-02 南京大学 Treatment method of pharmaceutical chemical industry park hybrid waste water
CN101781067A (en) * 2010-03-23 2010-07-21 哈尔滨工业大学 Method for treating coking wastewater
CN101863590A (en) * 2010-06-17 2010-10-20 同济大学 Combined anoxic/aerobic enhanced biological activated carbon dynamic membrane nitrogen and phosphorus removal process
CN101602564B (en) * 2009-07-21 2011-07-20 南京大学 Method for treating coking wastewater
CN101708894B (en) * 2009-12-01 2011-08-10 宋铁军 Coking wastewater high-efficiency biological denitrification process
CN101555069B (en) * 2009-05-15 2011-11-30 哈尔滨工业大学 Method for using anaerobic co-metabolism to process wastewater of coal chemical industry
CN103030247A (en) * 2011-10-09 2013-04-10 中国环境科学研究院 Method for treating sewage by organism-soil infiltration and device for realizing method
CN103787547A (en) * 2013-12-31 2014-05-14 嘉园环保股份有限公司 Treatment method for aged landfill leachate
CN103922475A (en) * 2014-05-04 2014-07-16 太原理工大学 Biological degradation method of nitrogen-containing heterocyclic compound wastewater
CN104016538A (en) * 2013-03-02 2014-09-03 重庆文理学院 Biofilm recirculation reactor
CN104628223A (en) * 2014-12-22 2015-05-20 浙江东发环保工程有限公司 Strengthened biological processing method of wastewater generated in natural gas production from coal
CN103991960B (en) * 2014-05-27 2015-11-18 青岛思普润水处理股份有限公司 A kind of microbial film and active sludge compound sewage treatment system
CN106957666A (en) * 2017-03-15 2017-07-18 俏东方生物燃料集团有限公司 The preparation method of biological poly alhpa olefin artificial oil
CN111847768A (en) * 2020-06-28 2020-10-30 魏毅宏 Ion exchange resin production wastewater treatment system and method
CN114163081A (en) * 2021-12-10 2022-03-11 河南省高新技术实业有限公司 Treatment method of coal gasification wastewater

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CN101805102B (en) * 2010-05-27 2012-05-02 江门裕华皮革有限公司 Wastewater treatment method

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CN100391876C (en) * 2006-11-21 2008-06-04 南京大学 Method for treating wastewater of terephthalic acid by using aerating bio filter
CN101254993B (en) * 2008-04-08 2010-06-02 南京大学 Treatment method of pharmaceutical chemical industry park hybrid waste water
CN101555069B (en) * 2009-05-15 2011-11-30 哈尔滨工业大学 Method for using anaerobic co-metabolism to process wastewater of coal chemical industry
CN101602564B (en) * 2009-07-21 2011-07-20 南京大学 Method for treating coking wastewater
CN101708894B (en) * 2009-12-01 2011-08-10 宋铁军 Coking wastewater high-efficiency biological denitrification process
CN101781067A (en) * 2010-03-23 2010-07-21 哈尔滨工业大学 Method for treating coking wastewater
CN101863590A (en) * 2010-06-17 2010-10-20 同济大学 Combined anoxic/aerobic enhanced biological activated carbon dynamic membrane nitrogen and phosphorus removal process
CN101863590B (en) * 2010-06-17 2011-11-16 同济大学 Combined anoxic/aerobic enhanced biological activated carbon dynamic membrane nitrogen and phosphorus removal process
CN103030247B (en) * 2011-10-09 2014-05-14 中国环境科学研究院 Method for treating sewage by organism-soil infiltration and device for realizing method
CN103030247A (en) * 2011-10-09 2013-04-10 中国环境科学研究院 Method for treating sewage by organism-soil infiltration and device for realizing method
CN104016538A (en) * 2013-03-02 2014-09-03 重庆文理学院 Biofilm recirculation reactor
CN103787547A (en) * 2013-12-31 2014-05-14 嘉园环保股份有限公司 Treatment method for aged landfill leachate
CN103787547B (en) * 2013-12-31 2016-01-20 嘉园环保有限公司 The treatment process of aging percolate
CN103922475A (en) * 2014-05-04 2014-07-16 太原理工大学 Biological degradation method of nitrogen-containing heterocyclic compound wastewater
CN103991960B (en) * 2014-05-27 2015-11-18 青岛思普润水处理股份有限公司 A kind of microbial film and active sludge compound sewage treatment system
CN104628223A (en) * 2014-12-22 2015-05-20 浙江东发环保工程有限公司 Strengthened biological processing method of wastewater generated in natural gas production from coal
CN106957666A (en) * 2017-03-15 2017-07-18 俏东方生物燃料集团有限公司 The preparation method of biological poly alhpa olefin artificial oil
CN106957666B (en) * 2017-03-15 2020-09-01 俏东方生物燃料集团有限公司 Preparation method of bio-based poly-alpha-olefin synthetic oil
CN111847768A (en) * 2020-06-28 2020-10-30 魏毅宏 Ion exchange resin production wastewater treatment system and method
CN114163081A (en) * 2021-12-10 2022-03-11 河南省高新技术实业有限公司 Treatment method of coal gasification wastewater

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Assignee: Wuxi overseas Chinese Special Paper Co., Ltd.

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