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1. (WO2018032810) COMPOSITE MATERIAL FOR TREATING, CONDITIONING, AND REMEDIATING CONTAMINATED RIVER OR LAKE SEDIMENT, AND MANUFACTURING METHOD THEREOF

Pub. No.:    WO/2018/032810    International Application No.:    PCT/CN2017/083620
Publication Date: Fri Feb 23 00:59:59 CET 2018 International Filing Date: Wed May 10 01:59:59 CEST 2017
IPC: C02F 11/14
Applicants: POWERCHINA WATER ENVIRONMENT GOVERANCE
中电建水环境治理技术有限公司
Inventors: WANG, Minhao
王民浩
CHEN, Shiqiang
陈士强
ZHAI, Deqin
翟德勤
LIU, Lihui
刘黎慧
ZHAO, Xinmin
赵新民
WANG, Guandong
王冠东
Title: COMPOSITE MATERIAL FOR TREATING, CONDITIONING, AND REMEDIATING CONTAMINATED RIVER OR LAKE SEDIMENT, AND MANUFACTURING METHOD THEREOF
Abstract:
A composite material for treating, conditioning, and remediating contaminated river or lake sediment. The composite material comprises the following components provided in the respective mass percentages as a part of the total mass of the composite material:52‑78.7% of a binding material with a nano-scale modification; 6‑12% of an aluminum-ferric polysilicate; 3‑7% of a zeolite powder; 2-8% of an activated calcium oxide; 3‑6% of an anhydrous gypsum; 2-6% of an activated carbon powder; 0.2-1% of a sodium silicate; 4-7% of a silicon micro powder; and 0.1-1.0% of a trithiocyanuric acid trisodium salt.The composite material for treating, conditioning, and remediating the contaminated river or lake sediment can significantly reduce heavy metal content, organic contaminant, and microbial content of a sludge, disperse and disrupt a flocculant or coagulant in the sludge, improve a structural performance and hydrological characteristic, and accelerate sludge-water separation.