The impact of wastewater treatment effluent on microbial biomasses and diversities in coastal sediment microcosms of Hangzhou Bay.
Disposal of wastewater treatment plant (WWTP) effluent into sea, a typical anthropogenic disturbance, may influence many environmental factors and change the coastal microbial community structure. In this study, by setting up coastal sediment microcosms perturbed by WWTP effluent, the changes of microbial community structure under different degree of disturbances were investigated. Quantitative PCR (qPCR) and terminal restriction fragment length polymorphism (T-RFLP) were used to analyzed the biomass and biodiversity. High throughput sequencing analysis was used to identify the classification of the microorganisms. Our study suggested that low ratio of WWTP effluent may stimulate dominant species, which increase the biomass but decrease the biodiversity; while high ratio of WWTP effluent may depress all species, which decrease the biomass but increase the biodiversity. In other words, the impact was dose-dependent. The changes of microbial community structure may provide a metric for water environmental assessment and pollution control.
['Tao|Yile|Y|', 'Dai|Tianjiao|T|', 'Huang|Bei|B|', 'Wen|Donghui|D|']
D061006:Bays D044822:Biodiversity D018533:Biomass D002681:China D004784:Environmental Monitoring D019015:Geologic Sediments D059013:Microbial Consortia D012150:Polymorphism, Restriction Fragment Length D020560:Proteobacteria D012336:RNA, Ribosomal, 16S D062065:Waste Water D018508:Water Purification
Wastewater treatment effluent Microbial biomass Coastal sediment Microcosm Biodiversity