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化学氧化后深层土壤中多环芳烃的缺氧微生物降解

麻俊胜 苟雅玲 王兴润 杨苏才 程言君 宋云

麻俊胜, 苟雅玲, 王兴润, 杨苏才, 程言君, 宋云. 化学氧化后深层土壤中多环芳烃的缺氧微生物降解[J]. 环境工程技术学报, 2020, 10(1): 97-104. doi: 10.12153/j.issn.1674-991X.20190067
引用本文: 麻俊胜, 苟雅玲, 王兴润, 杨苏才, 程言君, 宋云. 化学氧化后深层土壤中多环芳烃的缺氧微生物降解[J]. 环境工程技术学报, 2020, 10(1): 97-104. doi: 10.12153/j.issn.1674-991X.20190067
MA Junsheng, GOU Yaling, WANG Xingrun, YANG Sucai, CHENG Yanjun, SONG Yun. Anoxic biodegradation of polycyclic aromatic hydrocarbons (PAHs) in aged deep soil pretreated with chemical oxidation[J]. Journal of Environmental Engineering Technology, 2020, 10(1): 97-104. doi: 10.12153/j.issn.1674-991X.20190067
Citation: MA Junsheng, GOU Yaling, WANG Xingrun, YANG Sucai, CHENG Yanjun, SONG Yun. Anoxic biodegradation of polycyclic aromatic hydrocarbons (PAHs) in aged deep soil pretreated with chemical oxidation[J]. Journal of Environmental Engineering Technology, 2020, 10(1): 97-104. doi: 10.12153/j.issn.1674-991X.20190067

化学氧化后深层土壤中多环芳烃的缺氧微生物降解

doi: 10.12153/j.issn.1674-991X.20190067
详细信息
    作者简介:

    麻俊胜(1992—),男,硕士研究生,主要研究方向为场地调查评估与修复技术, zhymjs@126.com

    通讯作者:

    杨苏才 E-mail: liepi_yangsc@163.com

  • 中图分类号: X53

Anoxic biodegradation of polycyclic aromatic hydrocarbons (PAHs) in aged deep soil pretreated with chemical oxidation

More Information
    Corresponding author: Sucai YANG E-mail: liepi_yangsc@163.com
  • 摘要: 土壤中多环芳烃(PAHs)的化学氧化与微生物联合降解备受关注,但已有的研究主要集中在化学氧化与好氧微生物联用方面,与缺氧微生物联用研究较少。通过对过氧化氢氧化后的土壤进行接种和缺氧培养,考察化学氧化后深层土壤中PAHs缺氧微生物降解的可行性。结果表明:过氧化氢氧化后,16种PAHs降解了33.3%~95.9%,但土壤中细菌数量也明显减少,细菌数量的基因拷贝数减少了3.5个数量级;缺氧培养180 d后,添加营养盐可使微生物数量明显恢复,在同时添加营养盐和电子受体(硫酸盐)时微生物数量恢复程度更高;单独添加营养盐或电子受体不能明显促进PAHs降解,同时添加营养盐和电子受体能够促进PAHs降解,且同时添加营养盐和电子受体时,接种土壤中3环和部分4环PAHs(荧蒽和芘)的降解率显著高于未接种土壤。总体上,缺氧微生物降解可使PAHs去除率在化学氧化的基础上提高15%左右。

     

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出版历程
  • 收稿日期:  2019-04-25
  • 刊出日期:  2020-01-20

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