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电芬顿降解罗丹明B机制研究

康可佳 刘侨博 刘薇 曾红云 曲茉莉

现代农业科技Issue(8):223-224,226,3.
现代农业科技Issue(8):223-224,226,3.

电芬顿降解罗丹明B机制研究

Research on Degradation Mechanism of Rhodamine B by Electro-fenton

康可佳 1刘侨博 1刘薇 1曾红云 1曲茉莉1

作者信息

  • 1. 黑龙江省环境保护科学研究院,黑龙江哈尔滨 150056
  • 折叠

摘要

Abstract

In order to study the degradation mechanism of rhodamine B by electro-fenton,reaction kinetics was studied in different initial pH value,temperature,concentration of Fe2+. Overall,the degradation followed the first-order reaction. In order to investigate the degradation mechanism of rhodamine B,the GC-MS and UV-vis technologies were applied. The amount of hydrogen peroxide and the relative amount of hydroxyl radicals were determined to get a better understanding of it. From GC-MS analysis,12 kinds of degradation products were detected. They were diacid,malonic acid,succinic acid,led the dimethyl anhydride,methoxy benzene amine,ethylene glycol,2-hydroxy benzoic acid,benzoic acid,2-hydroxy glutaric acid,phthalic acid,isophthalic acid,terephthalic acid. On this basis,possible degradation mechanism was proposed.Under optimal conditions,after 50 min,the hydrogen peroxide content was 6 mmol/L,the relative amounts of hydrogen peroxide and hydroxyl radicals had the same trends.

关键词

罗丹明B/电芬顿/印染废水

Key words

rhodamine B/electrolysis fenton process/dyeing wastewater

分类

资源环境

引用本文复制引用

康可佳,刘侨博,刘薇,曾红云,曲茉莉..电芬顿降解罗丹明B机制研究[J].现代农业科技,2015,(8):223-224,226,3.

基金项目

国家科技重大专项“阿什河流域水污染控制技术经济与政策保障研究”(2012ZX07201003-04)。 ()

现代农业科技

1007-5739

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