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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 (CN)
LIU BINGZHI (CN)
CHEN XIAOYUE (CN)
LUO KUN (CN)
CHEN XIN (CN)
ZHAO CHUN (CN)
AN YANYAN (CN)
SUN QIANG (CN)
Application Number:
PCT/CN2017/114366
Publication Date:
May 09, 2019
Filing Date:
December 04, 2017
Export Citation:
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Assignee:
UNIV CHONGQING (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 (CN)
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