文献类型：期刊文献

中文题名：泥浆系统中Fe^(2+)活化过碳酸钠降解三氯乙烯

英文题名：Degradation of trichloroethylene using sodium percarbonate activated by ferrous ion in slurry system

作者：臧学轲[1];吕树光[1];顾小钢[1];缪周伟[1];邱兆富[1];隋倩[1]

机构：[1]华东理工大学国家环境保护化工过程环境风险评价与控制重点实验室,上海200237

年份：2015

卷号：9

期号：8

起止页码：4042

中文期刊名：环境工程学报

外文期刊名：Chinese Journal of Environmental Engineering

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：国家自然科学基金资助项目(41373094)

语种：中文

中文关键词：过碳酸钠;二价铁离子;三氯乙烯;泥浆系统

外文关键词：sodium percarbonate （SPC） ; ferrous iron; trichloroethylene （TCE） ; slurry system

摘要：主要探究泥浆系统中Fe2+活化过碳酸钠(SPC)降解三氯乙烯(TCE)的效果。通过批次实验研究土壤对TCE的吸附作用,并考察泥浆系统中SPC和Fe2+投加量对TCE去除效果的影响。结果表明,土壤对TCE具有一定的吸附作用;泥浆系统中,土壤含有的有机质越多,TCE去除效果越低;当SPC/TCE摩尔比为5/1~20/1时,SPC投加量对TCE去除影响不明显,TCE去除效果随Fe2+投加量增大而提高。当水土质量比为30/1,TCE初始浓度为20 mg/L时,SPC/Fe2+/TCE最优摩尔比为10/30/1,此时TCE最终去除率达到97.5%。综上所述,Fe2+活化过碳酸钠降解三氯乙烯快速高效,为应用于实际场地修复提供有效的理论依据。
The performance of TCE degradation using sodium percarbonate （SPC） activated by ferrous ion in slurry system was investigated. Batch tests were applied to explore TCE adsorption on soil and the impacts of SPC and Fe2＋ dosages on TCE removal. The results indicated that the soil, to some extent, had adsorption effect to TCE. TCE removal decreased with the increasing of organic matters in soil in slurry system. TCE degradation increased with the increasing of FeE＋ dosage, but SPC dosage had less effect in the tested SPC dosage range （SPC/TCE molar ratio of 5/1 ～20/1 ）. The optimum molar ratio of SPC/Fe2＋/TCE was indentified to be 10/ 30/1 when the water/soil mass ratio was 30/l and the initial concentration of TCE was 20 mg/L, and the final TCE removal was 97.5%. The above results strongly confirmed that sodium percarbonate activated by ferrous ion in TCE degradation is fast and efficient in slurry system, and it provides a theoretical basis for practical applica- tion in TCE contaminated site remediation.