生态与农村环境学报 ›› 2012, Vol. 28 ›› Issue (2): 196-202.doi:

• 污染控制与修复 • 上一篇    下一篇

3种表面活性剂对有机氯农药污染场地土壤的增效洗脱修复效应

田齐东, 王国庆, 赵欣, 林玉锁   

  1. 南京农业大学资源与环境科学学院
  • 收稿日期:2011-11-15 修回日期:2011-12-20 出版日期:2012-03-25 发布日期:2012-03-27
  • 通讯作者: 林玉锁 环境保护部南京环境科学研究所 E-mail:lys@nies.org
  • 作者简介:田齐东(1986-),男,安徽六安人,硕士生,主要从事污染场地土壤修复技术研究。E-mail:tianqidonggood@163.com
  • 基金资助:

    国家高技术研究发展计划(2009AA063103);环保公益性行业科研专项(201009015);中央级公益性科研院所基本科研业务费项目(G47012)

Effects of Three Surfactants Remedying Organochlorine Polluted Soils Through Enhanced Elution

TIAN  Qi-Dong, WANG  Guo-Qing, ZHAO  Xin, LIN  Yu-Suo   

  1. College of Resource & Environmental Science,Nanjing Agricultural University
  • Received:2011-11-15 Revised:2011-12-20 Online:2012-03-25 Published:2012-03-27
  • Contact: LIN Yu-Suo Nanjing Institute of Environmental Sciences,Ministry of Environmental Protection E-mail:lys@nies.org

摘要: 以有机氯农药生产企业工业场地污染土壤为对象,研究Tween80、TritonX-100和SDS这3种表面活性剂对土壤中氯丹(α-氯丹和γ-氯丹)、灭蚁灵、七氯、硫丹(α-硫丹和β-硫丹)的增溶洗脱效应。结果表明,3种表面活性剂对土壤中有机氯农药均具有一定的增效洗脱作用,且洗脱去除率随着表面活性剂添加量升高而逐渐增加。3种表面活性剂对土壤中氯丹、硫丹和七氯的去除率明显高于灭蚁灵,TritonX-100对灭蚁灵的去除率明显高于SDS和Tween80。Tween80和TritonX-100添加量为10 g·L-1、SDS添加量为8.50 g·L-1时,对土壤中4类有机氯农药的总去除率最高,分别为32.8%、59.7%和60.1%。对该类污染场地土壤,选择 10 g·L-1 TritonX-100溶液在50℃条件下振荡5min时洗脱效果最好。

关键词: 土壤修复, 污染场地, 表面活性剂, 有机氯农药, 氯丹, 灭蚁灵

Abstract: A batch soil washing experiment was carried out using Tween80,TritonX-100 and SDS,three different kinds of surfactants to elute organochlorine pesticides from contaminated soil.It was found that Tween80,TritonX-100 and SDS all displayed certain effects,which increased with the application rate of the surfactants.Their effects on cholordane,endosulfan and heptachlor were obviously higher than on mirex.The removal effect of TrintonX-100 on mirex was significantly higher than that of the other two.Treated with Tween80 at 10 g·L-1,Triton X-100 at 10 g·L-1 and SDS at 8.50 g·L-1 ,the soil reduced its total contamination of the four pesticides by 32.8%,59.7% and 60.1%,respectively with elevated temperature,the removal rate of OCPs increased.For such contaminated soils,the use of 10 g·L-1 TritonX-100 was the best after the samples were shaken for 5 minutes at 50 ℃.

Key words: soil remediation, contaminated site, surfactant, organochlorine pesticide, chlordane, mirex

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