Title:
HETEROGENEOUS COAGULATION ADSORBENT FOR HEAVY METAL ADSORPTION, PREPARATION METHOD AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/258588
Kind Code:
A1
Abstract:
Disclosed is a heterogeneous coagulation adsorbent for heavy metal adsorption, a preparation method, and an application thereof. The heterogeneous coagulation adsorbent comprises the following components in terms of mass percentage: 0.005%-0.01% of polyacrylamide, 0.0005%-0.001% of calcium chloride, 0.001%-0.01% of coconut oil fatty acid diethanolamide, and the remainder being water. In the heterogeneous coagulation adsorbent, calcium ions can promote the heterogeneous adsorption of gaseous heavy metal, such that the heavy metal is attached to the heterogeneous coagulation adsorbent. In addition, the polyacrylamide dissolved in water can perform electrical neutralization among fine particles rich in heavy metal and coagulate two or more particles by means of bridging, thereby increasing the removal efficiency of heavy metal in the form of fine particle. Moreover, the coconut oil fatty acid diethanolamide can reduce the surface tension of water, thereby increasing the solubility of organic compounds.
Inventors:
ZHAO YONGCHUN (CN)
CUI XIANGZHENG (CN)
ZHOU YUMING (CN)
ZHANG JUNYING (CN)
CUI XIANGZHENG (CN)
ZHOU YUMING (CN)
ZHANG JUNYING (CN)
Application Number:
PCT/CN2019/110747
Publication Date:
December 30, 2020
Filing Date:
October 12, 2019
Export Citation:
Assignee:
UNIV HUAZHONG SCIENCE TECH (CN)
International Classes:
B01D51/02; B01D53/00
Foreign References:
| CN105329977A | 2016-02-17 | |||
| CN106082415A | 2016-11-09 | |||
| CN105771531A | 2016-07-20 | |||
| CN107096350A | 2017-08-29 | |||
| JP2014180643A | 2014-09-29 | |||
| US7713421B2 | 2010-05-11 |
Attorney, Agent or Firm:
HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY PATENT AGENCY CENTER (CN)
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