摘要
Fe(OH)2对硝基苯具有强烈的还原作用,短时间内可把硝基苯还原为苯胺。催化铁屑法处理硝基苯类废水,除了包括铁屑法处理废水的各种反应外,还能使硝基苯在其表面直接还原,且反应在弱碱性条件下效果较好。m(Fe)∶m(Cu)为10∶1,pH为9.5,废水硝基苯进水质量浓度为250 mg/L,反应时间为30 min,硝基苯的去除率达100%。
Ferrous hydroxide is a strong reducing agent that can reduce nitrobenzene into aniline in a short time. Besides diverse chemical and electrochemical reactions in the iron scraps process, the direct electroreduction of nitrobenzene at the copper cathode is included in the iron scraps/copper process, and the effect of the reaction is better in alkaline medium. As a result, efficiency of nitrobenzene degradation still keeps at high level under this condition. The degradation efficiency of nitrobenzene reached 100% at 10∶1 weight proportion of copper to iron scraps, pH of 9.5 and 250 mg/l nitrobenzene, 30 min after the reaction.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2005年第1期8-11,共4页
Environmental Pollution & Control
基金
国家高新技术研究发展计划(863计划)研究课题"高级催化还原技术与设备"资助项目(No.2002AA601270)。
