摘要
采用Fe-Cu催化还原法处理硝基苯废水，优化了Cu和Fe的投加比例，并对反应过程中溶液pH值的变化，铁离子质量浓度的变化，铁的耗量和铜的溶出量进行分析．结果表明：Cu和Fe的质量比在0．2左右较为适宜；初始pH值为3．0～10．0的硝基苯废水，经该工艺处理后其pH值基本稳定在8．1左右；铁的溶解消耗量随着溶液初始pH值的降低而增大，但在30mg·L^-1之内；铁的总消耗量随着溶液初始pH值的升高而增大，但在50mg·L^-1以内；铜基本不发生溶出．与用铁碳内电解法处理工艺相比，采用本工艺处理硝基苯废水具有运行管理方便、铁的消耗量少、费用低和效果好等优点．
The catalyzed Fe-Cu process was used to treat nitrobenzene in aqueous solution. The dosage of Cu and Fe was optimized. An analysis is made of the variation of pH value, concentration of ferrous and ferric iron in the effluent, consumption of total iron, as well as the dissolving concentration of copper. The results show that the suitable mass ratio of Cu and Fe is around 0.2 ; in the original pH value of 3.0--10.0, the pH value in the effluent is stabilized at 8.1 around; lower initial pH value leads to higher concentration of ferrous and ferric iron in the effluent, and yet, within 30 mg·L^-1; higher initial pH value leads to higher consumption of total iron, and yet, within 50mg·L^-1; copper dissolution hardly appears. Compared with the treatment process of iron-carbon inner-electrolysis, the said process for treating nitrobenzene in aqueous solution shows many advantages, such as easy operation, less iron consumption, low running cost and good effect.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第7期937-941,共5页
Journal of Tongji University:Natural Science
基金
国家"八六三"高技术研究发展计划资助项目(2002AA601270)
上海市科委科研计划资助项目(06DZ22002)
