Title:
METHOD FOR ADVANCED TREATMENT OF COKE WASTEWATER UTILIZING COMBINATION OF THREE-DIMENSIONAL ELECTRODE AND COAGULATION
Document Type and Number:
WIPO Patent Application WO/2011/097920
Kind Code:
A1
Abstract:
A method for advanced treatment of coke wastewater utilizing a combination of three-dimensional electrode and coagulation is provided, which comprises the following steps: using H2SO4 or hydrochloric acid to adjust the pH value of the wastewater; then drawing the wastewater into a fluidized bed three-dimensional electrode reactor, in which oxidative damage to organic substances is strengthened under the combined action of a particle electrode and a main electrode; then making the wastewater flow into a coagulation tank, to which a certain quantity of polysilicate ferric magnesium coagulant is added for carrying out coagulation treatment; making the processed wastewater flow into a sedimentation tank; and educing supernatant to obtain effluent. The method carries out advanced treatment on bio-chemical effluent of the coke wastewater. COD, ammonia-nitrogen and chroma of the effluent can reach the national first class discharge standard. The method has simple process, easy operation, obvious processing effect, low operating cost and wide application prospect.
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Inventors:
REN HONGQIANG (CN)
SHI XIAOLEI (CN)
DING LILI (CN)
LIU MING (CN)
HU XIAOBING (CN)
SHI XIAOLEI (CN)
DING LILI (CN)
LIU MING (CN)
HU XIAOBING (CN)
Application Number:
PCT/CN2010/079890
Publication Date:
August 18, 2011
Filing Date:
December 16, 2010
Export Citation:
Assignee:
UNIV NANJING (CN)
REN HONGQIANG (CN)
SHI XIAOLEI (CN)
DING LILI (CN)
LIU MING (CN)
HU XIAOBING (CN)
REN HONGQIANG (CN)
SHI XIAOLEI (CN)
DING LILI (CN)
LIU MING (CN)
HU XIAOBING (CN)
International Classes:
C02F9/12; C02F1/461; C02F1/52; C02F1/66
Foreign References:
| CN101781054A | 2010-07-21 | |||
| CN101177330A | 2008-05-14 | |||
| JPH08155461A | 1996-06-18 |
Other References:
WANG, WANPENG ET AL.: "Advanced Treatment of Coal Tar Wastewater and Mechanism by Fluid Three-dimensional Electrode Reactor.", JOURNAL OF CHINA COAL SOCIETY., vol. 35, no. 1, 31 January 2010 (2010-01-31), pages 122
WANG, HANDAO ET AL.: "Experimental Study on Three-dimensional Electrode/Coagulation Method for Yeast Production Wastewater Treatment.", CHINA WATER & WASTEWATER., vol. 23, no. 7, 30 April 2007 (2007-04-30), pages 88
ZHANG, JINGXIANG ET AL.: "Studies on the Preparation and Decolorization of Polysilicate Ferric Magnesium Flocculant.", INDUSTRIAL WATER TREATMENT., vol. 29, no. 8, 31 August 2009 (2009-08-31)
XING, XIANGJUN ET AL.: "Study on Advanced Treatment of Coking Wastewater by Bipolar Three-dimensional Electrode Technology.", JIANG SU ENVIRONMENTAL SCIENCE AND TECHNOLOGY., vol. 17, no. 4, 31 December 2004 (2004-12-31), pages 6 - 8
WANG, HANDAO ET AL.: "Experimental Study on Three-dimensional Electrode/Coagulation Method for Yeast Production Wastewater Treatment.", CHINA WATER & WASTEWATER., vol. 23, no. 7, 30 April 2007 (2007-04-30), pages 88
ZHANG, JINGXIANG ET AL.: "Studies on the Preparation and Decolorization of Polysilicate Ferric Magnesium Flocculant.", INDUSTRIAL WATER TREATMENT., vol. 29, no. 8, 31 August 2009 (2009-08-31)
XING, XIANGJUN ET AL.: "Study on Advanced Treatment of Coking Wastewater by Bipolar Three-dimensional Electrode Technology.", JIANG SU ENVIRONMENTAL SCIENCE AND TECHNOLOGY., vol. 17, no. 4, 31 December 2004 (2004-12-31), pages 6 - 8
Attorney, Agent or Firm:
ZHISHI LAW FIRM OF INTELLECTUAL PROPERTY (CN)
南京知识律师事务所 (CN)
南京知识律师事务所 (CN)
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