Degradation of 3,3′-iminobis-propanenitrile in aqueous solution by Fe0/GAC micro-electrolysis system

被引：148

作者：

Lai, Bo ^{[1
,2
]}

Zhou, Yuexi ^{[2
]}

Yang, Ping ^{[1
]}

Yang, Jinghui ^{[3
]}

Wang, Juling ^{[2
]}

机构：

[1] Sichuan Univ, Sch Architecture & Environm, Chengdu 610065, Peoples R China

[2] Chinese Res Inst Environm Sci, Res Ctr Water Pollut Control Technol, Beijing 100012, Peoples R China

[3] China Natl Petr Corp, HSE Assessment, Res Inst Safety & Environm Technol, Beijing 100012, Peoples R China

来源：

CHEMOSPHERE | 2013年 / 90卷 / 04期

基金：

中国国家自然科学基金;

关键词：

3,3 '-Iminobis-propanenitrile; Fe-0/GAC micro-electrolysis system; Degradation products; Water treatment; ZERO-VALENT IRON; WASTE-WATER; ACTIVATED CARBON; ADSORPTION; REMOVAL; REACTOR;

D O I：

10.1016/j.chemosphere.2012.09.040

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The degradation of 3,3'-iminobis-propanenitrile was investigated using the Fe-0/GAC micro-electrolysis system. Effects of influent pH value, Fe-0/GAC ratio and granular activated carbon (GAC) adsorption on the removal efficiency of the pollutant were studied in the Fe-0/GAC micro-electrolysis system. The degradation of 3,3'-iminobis-propanenitrile was affected by influent pH, and a decrease of the influent pH values from 8.0 to 4.0 led to the increase of degradation efficiency. Granular activated carbon was added as cathode to form macroscopic galvanic cells between Fe-0 and GAC and enhance the current efficiency of the Fe-0/GAC micro-electrolysis system. The GAC could only adsorb the pollutant and provide buffer capacity for the Fe-0/GAC micro-electrolysis system, and the macroscopic galvanic cells of the Fe-0/GAC micro-electrolysis system played a leading role in degradation of 3,3'-iminobis-propanenitrile. With the analysis of the degradation products with GC-MS, possible reaction pathway for the degradation of 3,3'-iminobis-propanenitrile by the Fe-0/GAC micro-electrolysis system was suggested. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1470 / 1477

页数：8

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