摘要
基于过氧化氢(H2O2)的芬顿或类芬顿试剂被广泛应用于有机污染土壤的修复,但其对土壤基本性质及微生物群落的影响研究较少。本文以H2O2和不同的芬顿体系为研究对象,系统考察了H2O2、V2O3/H2O2、柠檬酸铁/H2O2体系对土壤有机质、铵态氮、硝态氮及微生物的影响。结果表明:H2O2在土壤中快速被分解,同时伴随着土壤有机质含量的显著下降和铵态氮含量的显著升高,土壤硝态氮含量变化不明显。高通量测序分析发现,H2O2和芬顿试剂显著降低了土壤微生物的多样性。
Hydrogen peroxide-based Fenton or Fenton-like reactions have been used extensively for the remediation of organic pollutants in the contaminated sites.However,the effects of H2O2 or Fenton reactions on soil properties and microbial communities are not fully understood.In this study,the effects of H2O2 and different Fenton reagents including H2O2,H2O2/V2O3 and H2O2/citrate chelated ferric on soil properties and microbial communities were studied.The results showed that H2O2 was decomposed quickly in soil accompanied with obvious degradation of soil organic matter(SOM),dramatic increase of soil ammonium nitrogen,and slight change of soil nitrate nitrogen.High-throughput sequencing was used to analyze microbial multi-samples and biome structure in soil,and it was found that H2O2 and Fenton reagents significantly reduced soil microbial diversity.
作者
周洋
邓亚梅
朱凤晓
赵广超
方国东
王荣富
周东美
ZHOU Yang;DENG Yamei;ZHU Fengxiao;ZHAO Guangchao;FANG Guodong;WANG Rongfu;ZHOU Dongmei(College of Environmental Science and Engineering,Anhui Normal University,Wuhu,Anhui 241002;Key Laboratory of Soil Environment and Pollution Remediation,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008;School of Resources and Environment,Anhui Agricultural University,Hefei,Anhui 230036;School of International Tourism,Anhui International Studies University,Hefei 231201,China)
出处
《土壤》
CAS
CSCD
北大核心
2020年第5期969-977,共9页
Soils
基金
江苏省杰出青年基金项目(BK20170050)
国家重点研发计划课题(2017YFA0207001)资助。
关键词
H2O2
类芬顿
土壤性质
微生物多样性
群落结构
H2O2
Fenton-like
Soil properties
Soil microbial diversity
Community structure
