A study on the removal of toxic metal-EDTA complex using solar light/TiO2 system

被引：12

作者：

Cho, IH ^{[1
]}

Park, TJ ^{[1
]}

Kim, HY ^{[1
]}

Zoh, KD ^{[1
]}

Lee, HK ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Publ Hlth, Dept Environm Hlth, Seoul, South Korea

来源：

INNOVATIONS IN CONVENTIONAL AND ADVANCED WATER TREATMENT PROCESSES | 2002年 / 2卷 / 01期

关键词：

Metal-EDTA complex; oxidation; photocatalytic; reduction; solar light; TiO2;

D O I：

10.2166/ws.2002.0035

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A circular reactor was placed outdoors to investigate the possibility of using natural sunlight in TiO2 photocatalysis system for the removal of toxic metals (Cd, Cr, Cu, Hg, Ni, Zn) and EDTA complex. The results show that the system containing both solar light and TiO2 more effectively removed metal-EDTA complex than either solar light or TiO2 system alone. The removal of each metal was more than 90% in the presence of TiO2/solar light, and EDTA (TOC basis) was reduced more than 80% in 120 min. Photocatalytic removal efficiency of heavy metal-EDTA increased with increasing TiO2 dosage. However, over 1.5g/L of TiO2 dosage, the efficiency reached a plateau.

引用

页码：299 / 304

页数：6

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