文献类型：期刊文献

中文题名：醇类淋洗剂淋洗修复多环芳烃污染土壤

英文题名：Remediation for soil contaminated with PAHs by alcohol eluant agent

作者：姚振楠[1];林匡飞[1];陆强[1];徐开泰[1];张金妹[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：2017

卷号：39

期号：11

起止页码：1242

中文期刊名：环境污染与防治

外文期刊名：Environmental Pollution & Control

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD2017_2018】；

语种：中文

中文关键词：醇;淋洗修复;多环芳烃;污染土壤

外文关键词：alcohol; washing remediation;polycyelic aromatic hydrocarbons; contaminated soil

摘要：异位土壤淋洗技术是一种有效的污染土壤修复技术。以菲和苯并[a]芘为目标污染物,选取醇类作为淋洗剂,考察了醇种类及浓度、淋洗剂用量、淋洗时间、淋洗温度、淋洗次数对污染土壤(菲和苯并[a]芘质量浓度分别为82.5、4.3mg/kg)淋洗效果的影响。结果表明:修复的最佳条件为正丙醇体积分数40%、淋洗剂用量20mL、淋洗温度20℃、淋洗时间60min、重复淋洗2次,此时菲和苯并[a]芘的去除率分别达到93.05%、86.85%。
Ex-situ soil washing technology is an effective remediation technology for contaminated soil. Phenan- threne and benzo[a]pyrene were taken as target pollutants and alcohols were taken as eluant agent. A series of experi- ments were conducted to study the effects of the variety and concentration of alcohols,eluant agent volume,washing time,washing temperature and washing cycles on the removal rate for the contaminated soil （the mass concentrations of phenanthrene and benzo[a]pyrene were 82.5 and 4.3 mg/kg,respectively）. Results showed that the best conditions for remediation were 40% （volume fraction） of 1-propanol as eluant agent, eluant agent volume of 20 mL, washing temperature of 20 ℃, washing time of 60 min and repeat twice. Under the best conditions, phenanthrene and benzo[a]pyrene removal rates could reach 93.05 % and 86.85% ,respectively.