典型文献
Microbial responses to the use of NaClO in sediment treatment
文献摘要：
Chlorine is often used in algal removal and deodorization of landscape waters,and occasionally used as an emergency treatment of heavily polluted sediments.However,the ecological impact of this practice has not been fully studied and recognized.In this study,NaClO at 0.1 mmol/g based on dry weight sediment was evenly mixed into the polluted sediment,and then the sediment was incubated for 150 days to evaluate its microbial effect.Results showed that NaClO addition enhanced the release of TOC,TN,Cr and Cu from the sediment.The microbial richness in the examined sediment decreased continuously,and the Chaol index declined from 4241 to 2731,in 150 days.The microbial community composition was also changed.The abundance of Proteobacteria and Bacteroidetes increased to 54.8％and 4.2％ within 7 days compared to the control,and linear discriminant analysis (LDA) showed gram-negative bacteria and aerobic bacteria enriched after chlorination.The functional prediction with PICRUSt2 showed the functions of the microbial community underwent major adjustments,and the metabolic-related functions such as carbon metabolism,including pyruvate and methane metabolisms were significantly inhibited;besides,15 out of 22 analyzed key enzymes involved in C cycling and 6 out of 12 key enzymes or genes involved in N cycling were strongly impacted,and the enzymes and genes involved in carbon degradation and denitrificafion showed remarkable downregulation.It can be concluded that chlorination posed a seriously adverse effect on microbial community structure and function.This study deepens the understanding of the ecological effects of applying chlorine for environmental remediation.
文献关键词：
中图分类号：
作者姓名：
Kun Li;Tingming Ye;Wang Zhang;Jianfeng Peng;Yaohui Bai;Weixiao Qi;Huijuan Liu
作者机构：
Key Laboratory of Drinking Water Science and Technology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;University of Chinese Academy of Sciences,Beijing 100049,China;China University of Mining & Technology,Beijing 100083,China;Center for Water and Ecology,State Key Joint Laboratory of Environment Simulation and Pollution Control,School of Environment,Tsinghua University,Beijing 100084,China
文献出处：
引用格式：
[1]Kun Li;Tingming Ye;Wang Zhang;Jianfeng Peng;Yaohui Bai;Weixiao Qi;Huijuan Liu-.Microbial responses to the use of NaClO in sediment treatment)[J].环境科学与工程前沿,2022(02):24-37
A类：
deodorization,denitrificafion
B类：
Microbial,responses,NaClO,treatment,Chlorine,often,used,algal,removal,landscape,waters,occasionally,emergency,heavily,polluted,sediments,However,ecological,this,practice,has,not,been,fully,studied,recognized,In,study,dry,weight,was,evenly,mixed,into,then,incubated,days,evaluate,its,microbial,Results,showed,that,addition,enhanced,release,TOC,TN,from,richness,examined,decreased,continuously,Chaol,declined,community,composition,also,changed,abundance,Proteobacteria,Bacteroidetes,increased,within,compared,control,linear,discriminant,analysis,LDA,gram,negative,aerobic,enriched,after,chlorination,functional,prediction,PICRUSt2,functions,underwent,major,adjustments,metabolic,related,such,carbon,including,pyruvate,methane,metabolisms,were,significantly,inhibited,besides,out,analyzed,key,enzymes,involved,cycling,genes,strongly,impacted,degradation,remarkable,downregulation,It,concluded,posed,seriously,adverse,structure,This,deepens,understanding,effects,applying,chlorine,environmental,remediation
AB值：
0.579266
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
