Alterations in microbial community during the remediation of a black-odorous stream by acclimated composite microorganisms  

作　　者：Feng Shi Zongli Liu Jialin Li Huiwang Gao Song Qin Jingjing Guo 

机构地区：[1]Key Lab of Coastal Biology and Biological Resource Conservation,Yantai Institute of Coastal Zone Research,Chinese Academy of Sciences,Yantai 264003,China [2]College of Environmental Science and Engineering,Ocean University of China,Qingdao 266100,China [3]Qingdao HOOH Environmental Protection Technology Co.Ltd.Qingdao 266073,China

出　　处：《Journal of Environmental Sciences》2022年第8期181-193,共13页环境科学学报（英文版）

基　　金：supported by the Science and Technology program of Yantai (No. 2017ZH095)。

摘　　要：Microbial application is an efficient, economical, and ecofriendly method for remediating black-odorous rivers. In this study, the field treatment effect and microbial community changes were monitored during remediation by the acclimated complex microorganisms of a typical black-odorous stream. After the treatment, the total phosphorus and ammonia contents decreased by 74.0% and 76.3% and the concentrations of dissolved oxygen increased from 1.65 to 4.90 mg/L, indicating the effectiveness of the acclimated composite microorganisms. The proportion of Bacteroidetes decreased significantly by 48.1% and that of Firmicutes increased by 2.23% on average, and the microbial diversity index first increased and then tended to be uniform. Redundancy analysis demonstrated that the pH,dissolved oxygen, and oxidation-reduction potential together determined the composition of the microbial communities(p < 0.05). These findings showed that the acclimated composite microorganisms can effectively remediate the black odor.

关 键 词：Black-odorous water Composite microorganisms Microbial community Environmental impact factors In-siu bioremediation 

分 类 号：X52[环境科学与工程—环境工程] X172