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Title:
METHOD FOR PREPARING MULTI-GROUP MAGNETIC COAGULANT AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/085137
Kind Code:
A1
Abstract:
A method for preparing a multi-group magnetic coagulant and an application thereof. The preparation method comprises: dispersing vinyl modified Fe3O4 magnetic particles in water; adding a mixed solution of itaconic acid and chitosan to the suspension of the modified Fe3O4 magnetic particles, then heating the suspension to 40-60°C in a water bath under protection of nitrogen gas; adding an initiator V044 for reaction under stirring, followed by cooling and standing; and purifying the resultant product with ethanol and drying the same, to give the multi-group magnetic coagulant. The coagulant prepared by the method achieves effective treatment of nickel-containing wastewater and malachite green wastewater. The coagulant contains non-toxic and biodegradable components, has a low dosage of magnetic powder, reduces cost, is easy to regenerate and reuse, and does not cause secondary pollution to water bodies.

Inventors:
ZHENG, Huaili (No.174, Shazheng Street Shapingba District, Chongqing 4, 400044, CN)
LIU, Bingzhi (No.174, Shazheng Street Shapingba District, Chongqing 4, 400044, CN)
CHEN, Xiaoyue (No.174, Shazheng Street Shapingba District, Chongqing 4, 400044, CN)
LUO, Kun (No.174, Shazheng Street Shapingba District, Chongqing 4, 400044, CN)
CHEN, Xin (No.174, Shazheng Street Shapingba District, Chongqing 4, 400044, CN)
ZHAO, Chun (No.174, Shazheng Street Shapingba District, Chongqing 4, 400044, CN)
AN, Yanyan (No.174, Shazheng Street Shapingba District, Chongqing 4, 400044, CN)
SUN, Qiang (No.174, Shazheng Street Shapingba District, Chongqing 4, 400044, CN)
Application Number:
CN2017/114366
Publication Date:
May 09, 2019
Filing Date:
December 04, 2017
Export Citation:
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Assignee:
CHONGQING UNIVERSITY (No.174, Shazheng Street Shapingba District, Chongqing 4, 400044, CN)
International Classes:
C02F1/56; C08F222/02; C08F251/00; C02F101/20; C02F101/30
Foreign References:
CN104874366A2015-09-02
CN105289557A2016-02-03
CN106832129A2017-06-13
CN107321326A2017-11-07
CN105251452A2016-01-20
US5864025A1999-01-26
Attorney, Agent or Firm:
CHONGQING BOKAI INTELLECTUAL PROPERTY AGENT CO., LTD (Room 22-6, Building 1 No.559, Hongjin Dadao, Yubei District, Chongqing 7, 401147, CN)
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