环境工程学报2011,Vol.5Issue(7):1656-1660,5.
土壤理化性质对Fe0还原硝基苯的影响
Effects of physical and chemical soil properties on reduction of NB with Fe0
摘要
Abstract
Zero-valent iron(Fe°) was utilized for the reduction of nitrobenzene(NB) in soil. The effects of physical and chemical soil properties were investigated. When the initial concentration of NB in 2 g of soil was 2. 5 x 10-6mol/g, the dosage of Fe° was 50 mg and soil moisture content was 75% ,the reduction rate of nitrobenzene respectively reached as high as 82. 9% and 91. 1% in medium loam and light sand after a incubation at 25 t after 1 hour. The rule of NB reduction rate in two kinds of soils was medium loam > light sand. Laboratory data showed that soil microorganisms as well as a higher organic matter content of soil seemed to promote more reduction of NB. Finer sizes of soil particles tended to promote a complete reduction of NB. The efficiency of reduction was not affected by NB aging time in the soils.关键词
土壤理化性质/Fe0/硝基苯/还原Key words
soil physical and chemical properties/ Fe° / nitrobenzene/ reduction分类
资源环境引用本文复制引用
吴双桃,邱罡,陈少瑾,谢凝子..土壤理化性质对Fe0还原硝基苯的影响[J].环境工程学报,2011,5(7):1656-1660,5.基金项目
广东省自然科学基金委项目(04106270) (04106270)