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1. (WO2018184391) METHOD FOR SYNCHRONOUSLY REMOVING COMPLEX HEAVY METAL AND ORGANIC SUBSTANCE BY MAGNETIC SEPARATION

Pub. No.:    WO/2018/184391    International Application No.:    PCT/CN2017/111276
Publication Date: Fri Oct 12 01:59:59 CEST 2018 International Filing Date: Fri Nov 17 00:59:59 CET 2017
IPC: C02F 1/48
C02F 9/14
C02F 101/20
Applicants: TONGJI UNIVERSITY
同济大学
Inventors: WU, Deli
吴德礼
TIAN, Zeyuan
田泽源
ZHANG, Yalei
张亚雷
MA, Luming
马鲁铭
ZHU, Jinsong
朱劲松
Title: METHOD FOR SYNCHRONOUSLY REMOVING COMPLEX HEAVY METAL AND ORGANIC SUBSTANCE BY MAGNETIC SEPARATION
Abstract:
A method for synchronously removing a complex heavy metal and an organic substance from waste water with a magnetic iron-based material comprises four steps including an anaerobic reaction, an incubation reaction, an aerobic reaction, and a magnetic separation reaction. Reductive decomplexation of a complex heavy metal is achieved by utilizing the reducibility of an iron-based material under anaerobic conditions, and a catalyst having a function of activating molecular oxygen is formed in-situ simultaneously. Molecular oxygen is catalyzed by an iron-based catalyst under aerobic conditions to form a species with strong oxidizability, and an organic contaminant is oxidized and degraded. The removal of contaminants is enhanced through magnetic separation. The idea of treating waste with waste achieves eco-friendly oxidation, shortens treatment processes, improves treatment efficiency, reduces economic costs, and promotes the application of technology in industry.