文献类型：期刊文献

英文题名：In-situ remediation of acid mine drainage from abandoned coal mine by filed pilot-scale passive treatment system: Performance and response of microbial communities to low pH and elevated Fe

作者：Chen, Haiyan Xiao, Tangfu Ning, Zengping Li, Qian Xiao, Enzong Liu, Yizhang Xiao, Qingxiang Lan, Xiaolong Ma, Liang Lu, Fanghai

第一作者：Chen, Haiyan

通信作者：Xiao, TF[1]

机构：[1]Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Peoples R China;[2]Guangzhou Univ, Sch Environm Sci & Engn, Minist Educ, Key Lab Water Qual & Conservat Pearl River Delta, Guangzhou 510006, Peoples R China;[3]Univ Chinese Acad Sci, Beijing 100049, Peoples R China;[4]Guizhou Univ Commerce, Sch Tourism Management, Guiyang 550014, Peoples R China;[5]Hanshan Normal Univ, Sch Chem & Environm Engn, Chaozhou 521041, Peoples R China;[6]Guizhou Inst Technol, Sch Mat & Met Engn, Guiyang 550003, Peoples R China

第一机构：Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Peoples R China

通信机构：corresponding author), Guangzhou Univ, Sch Environm Sci & Engn, Minist Educ, Key Lab Water Qual & Conservat Pearl River Delta, Guangzhou 510006, Peoples R China.

年份：2020

卷号：317

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000577076100005)】；

基金：This work was supported by the National Natural Science Foundation of China (41830753, U1612442). The authors would like to thank Prof. Margarete Kalin, Dr. Bill Wheeler, and Dr. Carlos Paulo at the Boojum Research Ltd., and Prof. Wolfgang Sand at Biofilm Centre, Aquatische Biotechnologie, Universitat Duisburg-Essen, Germany for technical support.

语种：英文

外文关键词：Acid mine drainage (AMD); In-situ bioremediation; Microbial community; Iron

摘要：A field pilot-scale passive treatment system was developed for in-situ bioremediation of acid mine drainage (AMD). The microbial community and its variation were analyzed. The data proved that 93.7% of total soluble Fe and 99% of soluble Fe(II) could be removed by the system. Principal coordinates analysis (PCoA) showed that a low pH and an elevated Fe concentration within the system created a unique microbial community that was dominated by acidophilic iron-oxidizing bacteria and iron-reducing bacteria. Canonical correlation analysis (CCA) indicated that the pH, iron content and total sulfur jointly determined the composition of the microbial communities. Species of Ferrovum, Delftia, Acinetobacter, Metallibacterium, Acidibacter and Acidiphilium were highly enriched, which promoted the removal of iron. Furthermore, the results revealed important data for the biogeochemical coupling of microbial communities and environmental parameters. These findings are beneficial for further application of in-situ field bioreactors to remediate AMD.