Decolorization of Crystal Violet by ultrasound/heterogeneous Fenton process

被引：22

作者：

Zhang, Hui ^{[1
]}

Gao, Hong ^{[1
]}

Cai, Chun ^{[1
]}

Zhang, Chunyang ^{[1
]}

Chen, Lu ^{[1
]}

机构：

[1] Wuhan Univ, Dept Environm Engn, Hubei Biomass Resource Chem & Environm Biotechnol, Wuhan 430079, Peoples R China

来源：

WATER SCIENCE AND TECHNOLOGY | 2013年 / 68卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Crystal Violet; decolorization; heterogeneous Fenton process; ultrasound; ACID ORANGE 7; CI REACTIVE-BLACK-8; DEGRADATION; IRON; MINERALIZATION; ULTRASOUND; OXIDATION; DECOLORISATION; COMBINATION; CATALYST;

D O I：

10.2166/wst.2013.539

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Activated-carbon-supported iron oxides were prepared and used as a catalyst in an integrated ultrasound/heterogeneous Fenton process for the decolorization of Crystal Violet. A synergistic effect was observed when ultrasound was combined with the heterogeneous Fenton process. The decolorization efficiency increased with the increasing power density and catalyst dosage, but decreased with the increase of initial pH value. There exists an optimal hydrogen peroxide concentration for decolorization. Catalyst stability was evaluated by measuring iron leaching in solution. The decolorization efficiency was 88% under the optimal conditions. Toxicity test with Daphnia magna showed that the acute toxicity of dye solution decreased significantly after the treatment by the heterogeneous sono-Fenton process.

引用

页码：2515 / 2520

页数：6

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