Driving Factors for Black-Odor-Related Microorganisms and Potential Self-Remediation Strategies

The black-odor phenomenon has been widely reported worldwide and recognized as a global ecological risk for aquatic environments. However, driving factors black-odor-related microorganisms potential self-remediation strategies are still poorly understood. This study collected eight water samples (sites A–H) disturbed by different from the Jishan River located in Jinmen, Hubei Province, China. Black-odor-related environmental functional bacterial structure were further measured based on basic physicochemical parameters. results indicated that types of conditions shape distribution quality microbial community structures. Site B, which was dams, had worst quality, lowest abundance microbes Mn, Fe, S biotransformation, highest fermentation. natural wetlands surrounding terminus river (site H) keys to eliminating phenomenon. Potential black-odor-forming include Lactococcus, Veillonella, Clostridium sensu stricto, Trichococcus, Rhodoferax, Sulfurospirillum, Desulfobulbus, Anaeromusa-Anaeroarcus. black-odor-repairing Acinetobacter, Mycobacterium, Acidovorax. pH COD paramount physiochemical contributing blackening-odor-related microorganisms. deepens our understanding provides theoretical basis eradicating