CN1778726A - Treatment of biological reactor for coking sewage membrane - Google Patents

Treatment of biological reactor for coking sewage membrane Download PDF

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Publication number
CN1778726A
CN1778726A CNA2005100473947A CN200510047394A CN1778726A CN 1778726 A CN1778726 A CN 1778726A CN A2005100473947 A CNA2005100473947 A CN A2005100473947A CN 200510047394 A CN200510047394 A CN 200510047394A CN 1778726 A CN1778726 A CN 1778726A
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membrane
treatment
water
biological
biological reactor
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CN100374380C (en
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尹君贤
张一红
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Acre Coking and Refractory Engineering Consulting Corp MCC
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Acre Coking and Refractory Engineering Consulting Corp MCC
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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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  • Separation Using Semi-Permeable Membranes (AREA)
  • Activated Sludge Processes (AREA)

Abstract

A treatment of coking sewage membrane biological reactor consists of pretreatment, biochemical treatment, after-treatment water recovery and utilization. Membrane biological reactor is set in anoxic biological pool, the reactor consists of oxygen biological pool and membrane pool. The process is carried out by mud and water separating for curtain micro-filter membrane or super-filter membrane substituting secondary settling basin and removing high-molecular lysate to decrease outfall COD. Its advantages include higher mud concentration and volume load, and floor-area saving. It can be used to recover and utilize production circulating water system and coked sewage zero displacement.

Description

Treatment of biological reactor for coking sewage membrane
Technical field
The present invention relates to a kind of treatment process of coked waste water, particularly a kind of technology that adopts membrane bioreactor coked waste water to be carried out advanced treatment.
Background technology
At present, coked waste water is handled and generally to be adopted A/O biological denitrificaion treatment technology, handles back sewage quality index and can reach national specified discharge standard, and part is back to wet quenching, dedusting, coal gas water seal equal turbidity circulating water system and makes make up water.And the advanced treatment of coked waste water is generally adopted sand filtration, still about 100～150mg/L, suspension content can not satisfy and produce water purification water water quality requirement about 30mg/L COD of sewage after handling; The employing activated carbon filtration that has can be removed COD and suspended substance in the water effectively, and COD is dropped to below the 70mg/L, and suspension content is below 30mg/L, but the saturated back of charcoal absorption is just ineffective, the regenerative process more complicated, and cost is higher.
Summary of the invention
The present invention has overcome deficiency of the prior art, and a kind of treatment of biological reactor for coking sewage membrane that can reduce COD and suspension content in the coked waste water significantly is provided.
The present invention is achieved by following technical proposals: coked waste water is earlier after water reuse stage after the pre-treatment, biochemical treatment, processing, behind the anoxic biological tank in biochemical treatment stage, be provided with membrane bioreactor, this reactor is made up of aerobe pond and membrane cisterna two portions, coked waste water is after anoxic biological tank and aerobic biological tank carry out biochemical treatment, and decline filter membrane or ultra-filtration membrane of the curtain in being arranged in membrane cisterna finally handled again.
The sludge concentration in described aerobe pond remains on 6～10g/L; The sludge loading of described membrane bioreactor is 0.3～0.45kgCOD/kgMLVSSd and 0.03～0.05kgTKN/kgMLVSSd, and volumetric loading is 2～2.7kgCOD/m 3D and 0.2～0.28kgTKN/m 3D; Described curtain formula ultra-filtration membrane or microfiltration membrane are carried out back flushing by the upstream of aerobe pond aeration to its surface, and the gas-water ratio of back flushing is 20: 1～30: 1, and backwashing period is 30～45min, and backwashing time is 10～20s; The aerobic mixed-liquor return in described aerobe pond is to the anoxic biological filter, and internal circulating load is 200～300%; The operating pressure of described membrane bioreactor be negative pressure-pumping-0.02～-0.035MPa, working temperature is 18-28 ℃, it is 10～15L/hm that film is crossed water flux 2COD＜the 70mg/L of water outlet after Membrane Bioreactor for Wastewater Treatment, suspended substance＜1mg/L.
Compared with prior art, the advantage of treatment of biological reactor for coking sewage membrane of the present invention is: set up membrane cisterna, in establish curtain decline filter membrane or ultra-filtration membrane, and aerobe pond and membrane cisterna be combined into membrane bioreactor, carry out mud-water separation with microfiltration membrane or ultra-filtration membrane, improve the biochemical sludge concentration and the volumetric loading of biochemical reaction tank, cancelled second pond and coagulating treatment, saved occupation of land; Water outlet reaches produces the water water quality standard, can be back to and produce clean circulating water system water as a supplement, realizes the utilization again of water resources, thereby realizes the zero release of coked waste water.
Description of drawings
Fig. 1 is the treatment of biological reactor for coking sewage membrane schema.
Embodiment
Below in conjunction with Fig. 1 and embodiment the present invention is further described:
Coked waste water carries out pre-treatment, biochemical treatment earlier, to remove COD, SS, NH in the waste water 3Pollutents such as-N, behind the anoxic biological tank in biochemical treatment stage, be provided with membrane bioreactor, this reactor is made up of aerobe pond and membrane cisterna two portions, coked waste water is after anoxic biological tank and aerobic biological tank carry out biochemical treatment, and decline filter membrane or ultra-filtration membrane of the curtain in being arranged in membrane cisterna finally handled again.Replace second pond to carry out mud-water separation with being arranged in decline filter membrane or ultra-filtration membrane of curtain in the membrane bioreactor membrane cisterna, remove macromole solute in the water simultaneously, further reduce water outlet COD, do not need coagulating sedimentation, water outlet can be satisfied the clean circulating water system water quality requirement of production.
The sludge concentration in aerobe pond remains on 6～10g/L; The sludge loading of membrane bioreactor is 0.3～0.45kgCOD/kgMLVSSd and 0.03～0.05kgTKN/kgMLVSSd, and volumetric loading is 2～2.7kgCOD/m 3D and 0.2～0.28kgTKN/m 3D; Upstream by aerobe pond aeration carries out back flushing to curtain formula ultra-filtration membrane or microfiltration membrane surface, and the gas-water ratio of back flushing is 20: 1～30: 1, and backwashing period is 30～45min, and backwashing time is 10～20s; The aerobic mixed-liquor return in aerobe pond is to the anoxic biological filter, and internal circulating load is 200～300%; The operating pressure of membrane bioreactor be negative pressure-pumping-0.02～-0.035MPa, working temperature is 18～28 ℃, it is 10～15L/hm that film is crossed water flux 2COD＜the 70mg/L of water outlet after Membrane Bioreactor for Wastewater Treatment, suspended substance＜1mg/L.
Embodiment 1:
The raw waste water amount is 50m 3/ h enters the biochemical treatment stage after the pre-treatment oil removing, A/O outer circulation biological denitrification process is adopted in biochemical treatment, and the sludge concentration in aerobe pond remains on 8g/L; The sludge loading of membrane bioreactor is 0.45kgCOD/kgMLVSSd and 0.05kgTKN/kgMLVSSd, and volumetric loading is 2kgCOD/m 3D and 0.2kgTKN/m 3D; Outputted aerobic water adopts the curtain be located in the membrane cisterna filter membrane that declines to filter, and the microfiltration membrane total area is 4800m 2, film effluent adopting pump negative pressure-pumping, pressure be-0.02MPa, and water temperature is 20 ℃, and it is 10L/hm that film is crossed water flux 2, water outlet enters handles the back reuse pool.The curtain filter membrane that declines is established 10 film casees, and each film case is adorned 24 membrane element (20m 2/), 8 film case work, the backwash of 2 film casees, the air water backwash, gas-water ratio is 20: 1, the water backwash of filter back, the backwash water yield is 0.3m 3/ h, backwash pressure is 1.2kg/cm 2, backwashing period is 30min, the backwash time is 20s.
It is 65mg/L that membrane cisterna is handled back effluent quality COD, and suspended substance is 0.9mg/L, handles back water and is back to the clean circulating water system of production water as a supplement.
Embodiment 2:
The raw waste water amount is 50m 3/ h enters the biochemical treatment stage after the pre-treatment oil removing, A/O outer circulation biological denitrification process is adopted in biochemical treatment, and the sludge concentration in aerobe pond remains on 10g/L; The sludge loading of membrane bioreactor is 0.3kgCOD/kgMLVSSd and 0.03kgTKN/kgMLVSSd, and volumetric loading is 2.7kgCOD/m 3D and 0.28kgTKN/m 3D; Outputted aerobic water adopts the curtain formula ultra-filtration membrane that is located in the membrane cisterna to filter, and the ultra-filtration membrane total area is 5000m 2, film effluent adopting pump negative pressure-pumping, pressure be-0.03MPa, and water temperature is 20 ℃, and it is 15L/hm that film is crossed water flux 2, water outlet enters handles the back reuse pool.Curtain formula ultra-filtration membrane is established 10 film casees, and each film case is adorned 24 membrane element (20m 2/), 8 film case work, the backwash of 2 film casees, air water backwash, gas-water ratio 30: 1, the water backwash of filter back, backwash water yield 0.3m 3/ h, backwash pressure 1.5kg/cm 2, backwashing period 30min, backwash time 20s.
It is 60mg/L that membrane cisterna is handled back effluent quality COD, and suspended substance is 0.8mg/L, handles back water and is back to the clean circulating water system of production water as a supplement.

Claims (7)

1. treatment of biological reactor for coking sewage membrane, comprise the stage such as water reuse after pre-treatment, biochemical treatment, the processing, it is characterized in that: behind the anoxic biological tank in biochemical treatment stage, be provided with membrane bioreactor, this reactor is made up of aerobe pond and membrane cisterna two portions, coked waste water is after anoxic biological tank and aerobic biological tank carry out biochemical treatment, and decline filter membrane or ultra-filtration membrane of the curtain in being arranged in membrane cisterna finally handled again.
2. treatment of biological reactor for coking sewage membrane according to claim 1 is characterized in that: the sludge concentration in described aerobe pond remains on 6～10g/L.
3. treatment of biological reactor for coking sewage membrane according to claim 1, it is characterized in that: the sludge loading of described membrane bioreactor is 0.3～0.45kgCOD/kgMLVSSd and 0.03～0.05kgTKN/kgMLVSSd, and volumetric loading is 2～2.7kgCOD/m 3D and 0.2～0.28kgTKN/m 3D.
4. treatment of biological reactor for coking sewage membrane according to claim 1, it is characterized in that: ultrafiltration of described curtain formula or microfiltration membrane are carried out back flushing by the upstream of aerobe pond aeration to its surface, the gas-water ratio of back flushing is 20: 1～30: 1, backwashing period is 30～45min, and backwashing time is 10～20s.
5. treatment of biological reactor for coking sewage membrane according to claim 1 is characterized in that: the aerobic mixed-liquor return in described aerobe pond is to the anoxic biological tank, and internal circulating load is 200～300%.
6. treatment of biological reactor for coking sewage membrane according to claim 1 is characterized in that: the operating pressure of described membrane bioreactor be negative pressure-pumping-0.02～-0.035MPa, working temperature is 18～28 ℃, it is 10～15L/hm that film is crossed water flux 2
7. a kind of treatment of biological reactor for coking sewage membrane according to claim 1 is characterized in that: the COD＜70mg/L of water outlet after Membrane Bioreactor for Wastewater Treatment, suspended substance＜1mg/L.
CNB2005100473947A 2005-10-14 2005-10-14 Treatment of biological reactor for coking sewage membrane Active CN100374380C (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100465112C (en) * 2007-06-29 2009-03-04 天津森诺过滤技术有限公司 Technological process of treating papermaking effluent for reuse based on membrane integrating technique
CN100528770C (en) * 2007-07-13 2009-08-19 中国人民解放军军事医学科学院卫生学环境医学研究所 Integrative aerobic particle sludge membrane bioreactor sewage treatment method
CN101817617A (en) * 2010-02-27 2010-09-01 韦旺 Comprehensive treatment process for coking wastewater
CN101445310B (en) * 2008-12-22 2011-02-16 北京桑德环境工程有限公司 Biological treatment system and method of phenolic wastewater
CN101402509B (en) * 2008-11-21 2011-07-27 北京桑德环境工程有限公司 Treatment system and method for high-salt wastewater
CN102718371A (en) * 2012-07-13 2012-10-10 神华集团有限责任公司 Treatment method and treatment equipment for coal chemical industry wastewater
CN102826654A (en) * 2012-08-23 2012-12-19 天通新环境技术有限公司 Device and method for recovery treatment on sewage obtained by sludge heat drying
CN103102004A (en) * 2011-11-10 2013-05-15 中国石油化工股份有限公司 Industrial circulation water treatment method
CN104761103A (en) * 2015-04-10 2015-07-08 北京万邦达环保技术股份有限公司 Sewage treatment device and method
CN105110574A (en) * 2015-09-23 2015-12-02 北京金峡超滤设备有限责任公司 Wastewater treatment system
CN105174628A (en) * 2015-09-23 2015-12-23 北京金峡超滤设备有限责任公司 Waste water treatment method
CN105668952A (en) * 2016-04-25 2016-06-15 广东东日环保有限公司 Smart two-membrane integrated sewage treatment system
CN107055962A (en) * 2017-04-25 2017-08-18 中国市政工程中南设计研究总院有限公司 A kind of integrated rural sewage-treatment plant and method
CN111517561A (en) * 2020-03-31 2020-08-11 临涣焦化股份有限公司 Coking chemical product refining wastewater treatment method

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CN101830601B (en) * 2010-04-30 2012-05-09 浙江大学 Biological treatment system and method thereof specific to industrial wastewater of fluorescent brightener

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US6692642B2 (en) * 2002-04-30 2004-02-17 International Waste Management Systems Organic slurry treatment process
CN1208262C (en) * 2003-04-02 2005-06-29 董红敏 High concentration oxganic effluent treatment composite process and its equipment

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100465112C (en) * 2007-06-29 2009-03-04 天津森诺过滤技术有限公司 Technological process of treating papermaking effluent for reuse based on membrane integrating technique
CN100528770C (en) * 2007-07-13 2009-08-19 中国人民解放军军事医学科学院卫生学环境医学研究所 Integrative aerobic particle sludge membrane bioreactor sewage treatment method
CN101402509B (en) * 2008-11-21 2011-07-27 北京桑德环境工程有限公司 Treatment system and method for high-salt wastewater
CN101445310B (en) * 2008-12-22 2011-02-16 北京桑德环境工程有限公司 Biological treatment system and method of phenolic wastewater
CN101817617A (en) * 2010-02-27 2010-09-01 韦旺 Comprehensive treatment process for coking wastewater
CN103102004A (en) * 2011-11-10 2013-05-15 中国石油化工股份有限公司 Industrial circulation water treatment method
CN102718371B (en) * 2012-07-13 2014-07-09 神华集团有限责任公司 Treatment method and treatment equipment for coal chemical industry wastewater
CN102718371A (en) * 2012-07-13 2012-10-10 神华集团有限责任公司 Treatment method and treatment equipment for coal chemical industry wastewater
CN102826654A (en) * 2012-08-23 2012-12-19 天通新环境技术有限公司 Device and method for recovery treatment on sewage obtained by sludge heat drying
CN104761103A (en) * 2015-04-10 2015-07-08 北京万邦达环保技术股份有限公司 Sewage treatment device and method
CN104761103B (en) * 2015-04-10 2017-05-24 北京万邦达环保技术股份有限公司 Sewage treatment device and method
CN105110574A (en) * 2015-09-23 2015-12-02 北京金峡超滤设备有限责任公司 Wastewater treatment system
CN105174628A (en) * 2015-09-23 2015-12-23 北京金峡超滤设备有限责任公司 Waste water treatment method
CN105668952A (en) * 2016-04-25 2016-06-15 广东东日环保有限公司 Smart two-membrane integrated sewage treatment system
CN107055962A (en) * 2017-04-25 2017-08-18 中国市政工程中南设计研究总院有限公司 A kind of integrated rural sewage-treatment plant and method
CN111517561A (en) * 2020-03-31 2020-08-11 临涣焦化股份有限公司 Coking chemical product refining wastewater treatment method

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Owner name: ZHONGYE JIAONAI( DALIAN ) ENGINEERING TECHNOLOGY C

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Address after: 128, high energy street, Qixian Ling, Liaoning hi tech Industrial Park, Dalian, zip code: 116023

Co-patentee after: ACRE Coking and Refractory Engineering Consulting Corporation, MCC

Patentee after: Zhong Ye Jiao Tong (Dalian) Engineering Technology Co., Ltd.

Address before: No. 27 Shengli South Road, Anshan, Liaoning Province: 114002

Patentee before: ACRE Coking and Refractory Engineering Consulting Corporation, MCC

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Address after: Dalian high tech Industrial Park, 116023 Liaoning province Qixianling high-energy Street No. 128

Patentee after: ACRE Coking And Refractory (Dalian) Engineering Consulting Corp., MCC

Address before: Dalian high tech Industrial Park, 116023 Liaoning province Qixianling high-energy Street No. 128

Co-patentee before: ACRE Coking and Refractory Engineering Consulting Corporation, MCC

Patentee before: ACRE Coking And Refractory (Dalian) Engineering Consulting Corp., MCC