Application of zerovalent iron (Fe(0)) to enhance degradation of HCHs and DDX in soil from a former organochlorine pesticides manufacturing plant
文献类型：SCI/SSCI论文
| 作者 | Lei M. |
| 发表日期 | 2010 |
| 关键词 | Contaminated site Land remediation Reductive dechlorination Bioremediation persistent organic pollutants zero-valent iron hexachlorocyclohexane isomers beta-hexachlorocyclohexane sphingomonas-paucimobilis microbial-degradation in-vitro dechlorination residues gamma |
| 英文摘要 | Remediation of pesticide-polluted soil is particularly challenging when pesticides in soil are aged and a mixture of pesticides is present. Application of zerovalent iron (Fe(0)) was investigated to accelerate the degradation of HCHs (alpha-, beta-, gamma- and delta-hexachlorocyclohexane) and DDX (DDT, DDE and ODD) in the soil from a former organochlorine pesticide manufacturing plant. Ultrasonic extraction was used extract the organochlorine pesticides from soil. The identification and quantification of organochlorine pesticides in the extracts were accomplished by gas chromatograph. The addition of Fe(0) facilitated the degradation of the beta-HCH isomer, but had little effect on the degradation of alpha-HCH, gamma-HCH and delta-HCH. Zerovalent iron significantly increased the degradation of p,p'-DDT and o,p'-DDT in soil, and the percentage degradation of p,p'-DDT and o,p'-DDT increased with increased Fe(0) concentration during the first period of incubation. However, the amount of p,p'-DDD, the main dechlorinated product of p,p'-DDT, basically kept increased except in the unamended soil. The addition of Fe(0) therefore did not increased the percent degradation of Sigma(DDT) (p,p'-DDT + p,p'-DDD + pp'-DDE) markedly. (C) 2010 Elsevier Ltd. All rights reserved. |
| 出处 | Chemosphere |
| 卷 | 79 |
| 期 | 7 |
| 页 | 727-732 |
| 收录类别 | SCI |
| ISSN号 | 0045-6535 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/22585]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Lei M.. Application of zerovalent iron (Fe(0)) to enhance degradation of HCHs and DDX in soil from a former organochlorine pesticides manufacturing plant. 2010. |
入库方式： OAI收割
来源：地理科学与资源研究所
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