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三维电极电化学反应器降解有机废水中的EDTA
  • ISSN号：1672-7207
  • 期刊名称：《中南大学学报：自然科学版》
  • 时间：0
  • 分类：X703.1[环境科学与工程—环境工程] O646.5[理学—物理化学;理学—化学]
  • 作者机构：[1]中南大学冶金科学与工程学院,湖南长沙410083
  • 相关基金：国家水体污染控制与治理科技重大专项（2009ZX07212-001-01）; 国家杰出青年科学基金资助项目（50925417）; 国家自然科学基金重点项目（50830301）; 湖南省节能减排科技重大专项（2008FJ1013）
作者： 柴立元[1], 尤翔宇[1], 舒余德[1], 杨杰[1], 王云燕[1], 赵娜[1]
关键词： 三维电极, 电催化氧化, 有机废水, 羟基自由基, 乙二胺四乙酸二钠, three-dimensional electrode, electro-catalytic oxidation, organic wastewater, ？OH radical, EDTA-2Na
中文摘要：

研究一种基于三维电极电化学反应器处理有机废水的新方法。研究结果表明：采用活化后的活性炭作为粒子电极,通过产生？OH自由基有效降解废水中的EDTA,其去除率受进水pH、电流和电导率等影响较大;在？OH自由基的作用下,EDTA首先被降解成伯胺等中间产物,进而又被矿化为CO2,H2O和NH3。在进水pH为6.0,进水流量为200 mL/min,水温为25℃,电导率为0.15 S/m,电流为200 mA时,电解1 h,总有机碳（TOC）的去除率可以达到96.40%;经50次循环实验,TOC去除率仍可保持在90%以上。

英文摘要：

The electrochemical degradation of organic wastewater containing EDTA was investigated using a novel three-dimensional electrode reactor.The results show that using activated carbon as particle electrode,EDTA in organic wastewater can be efficiently removed by ？OH radicals produced in the reactor,while its removal efficiency is significantly dependent on current,electric conductivity and pH of the wastewater.EDTA is firstly degraded into primary amine during the action of ？OH radicals,then mineralized into CO2,H2O and NH3.The removal efficiency of total organic carbon（TOC） is 96.40% at 200 mA,0.15 S/m of electric conductivity,1 h of electrolysis time,25 ℃,200 mL/min of influent flow rate,pH 6.0.The removal efficiency of TOC maintains 90% when it is circulated times is 50.

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期刊信息
  • 《中南大学学报：自然科学版》
  • 北大核心期刊（2011版）
  • 主管单位:教育部
  • 主办单位:中南大学
  • 主编：黄伯云
  • 地址：湖南长沙中南大学校本部
  • 邮编：410083
  • 邮箱：zngdxb@csu.edu.cn
  • 电话：0731-88879765
  • 国际标准刊号：ISSN：1672-7207
  • 国内统一刊号：ISSN：43-1426/N
  • 邮发代号:42-19
  • 获奖情况:
  • 首届全国优秀科技期刊评比一等奖,第二届全国优秀科技期刊评比一等奖,首届中国有色金属工业优秀科技期刊评比一等奖
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,英国科学文摘数据库,中国中国科技核心期刊,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）
  • 被引量:20874