文献类型：期刊文献

中文题名：水相和泥浆系统中地下水成分对高锰酸钾氧化TCE的影响

英文题名：Effects of groundwater constituents on trichloroethylene oxidation using permanganate in aqueous and slurry systems

作者：逯志昌[1];邱兆富[1];吕树光[1];何龙[1];隋倩[1];林匡飞[1];刘勇弟[1]

机构：[1]华东理工大学资源与环境工程学院,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：2012

卷号：6

期号：12

起止页码：4529

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2011】；CSCD:【CSCD2011_2012】；

基金：环保公益性行业科研专项(201109013);上海市自然科学基金面上项目(12ZR1408000)

语种：中文

中文关键词：高锰酸钾;三氯乙烯;污染地下水;泥浆系统

外文关键词：potassium permanganate ; trichloroethylene ; contaminated groundwater; slurry system

摘要：三氯乙烯(TCE)是污染土壤和地下水中检出率较高的氯代有机物。以TCE为研究对象,考察了地下水无机成分和腐殖酸对高锰酸钾氧化TCE的影响,研究了不同离子强度下的MnO2颗粒行为,并测定了泥浆系统中TCE的氧化效果,结果表明:当TCE初始浓度为20 mg/L、高锰酸钾与TCE的摩尔比为2∶1,离子浓度<0.1 mol/L时,TCE去除率可达98%以上,Na+、Cl-、HCO3-对TCE的去除率影响甚微,但离子强度对MnO2的沉淀生成影响显著;0.1 mol/L的K+对TCE的去除有一定程度的抑制;0.1 mmol/L的Fe2+和腐殖酸对TCE的氧化有显著负面影响。泥浆系统实验进一步验证了有机质对高锰酸钾氧化TCE的影响很大。
Trichloroethylene （TCE） is a common chlorinated hydrocarbon contaminant frequently detected in soil and groundwater. In this study, TCE was chosen as the target contaminant. The effects of inorganic con- stituents in groundwater and humic acid （HA） on TCE oxidation using KMnO4 were investigated in aqueous sys- tem, meanwhile the MnO2 particle performance under various ion strength conditions and TCE removal perform- ance in slurry system were evaluated. The results showed that over 98% TCE removal could be achieved under the experimental conditions： initial TCE concentration of 20 mg/L, KMnO4/TCE molar ratio of 2：1 and ionic concentration of 〈0.1 mol/L. Na＋ , Cl- and HCO3- had less effect on TCE removal efficiency, but the ionic strength had significant influence on MnO2 precipitation. 0.1 mol/L K ＋ could cause inhibition to TCE removal to some extent, whereas HA and 0.1 mmol/L Fe2＋ had apparently negative effects on TCE oxidation. The tests in slurry system further demonstrated that the organic matters have a significant impact on TCE oxidation by KMnOA.