Removal of chelated copper from wastewaters by Fe2+-based replacement-precipitation

被引：33

作者：

Jiang, Shuxian ^{[1
,2
]}

Qu, Junxiong ^{[3
]}

Xiong, Ya ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangzhou 510275, Guangdong, Peoples R China

[2] Guangdong Univ Technol, Fac Civil & Transportat Engn, Guangzhou 510275, Guangdong, Peoples R China

[3] Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China

来源：

ENVIRONMENTAL CHEMISTRY LETTERS | 2010年 / 8卷 / 04期

关键词：

CuEDTA-containing wastewater; Copper removal; Replacement-precipitation; Ferrous ions; WASTE-WATER; EDTA; SPECIATION; CU(II); METALS; ZN(II); IONS;

D O I：

10.1007/s10311-009-0230-1

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We studied the removal mechanism and affecting factors of Fe2+-based replacement-precipitation process for treating CuEDTA-containing wastewaters. Since Fe2+ was easily oxidized to Fe3+ in the presence of oxygen, the chelated copper was removed by the synergetic effect of Fe3+ replacement and NaOH precipitation. Our experiments showed that the copper removal efficiency was considerably dependant on pH conditions of the solution and molar ratio of Fe2+/Cu2+.

引用

页码：339 / 342

页数：4

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