Microbial community structures analysis in a biological plant treating oxytetracycline production wastewater
土霉素生产废水生物处理装置中微生物群落结构特征解析

As antibiotics can cause strong inhibition of bacteria,their presence will influence microbial community structure in wastewater treatment plants.The abundances of bacterial and fungal populations in an oxytetracycline-production wastewater(influent oxytetracycline 1 662.1±248.6 μg/L) were measured by quantitative real-time PCR,and bacterial community structure was examined by 16S rDNA clone library construction.The ratio of fungi/bacteria valued 1.2 in oxytetracycline-production wastewater,much higher than that(1.52×10-6) in inosine-production wastewater with no antibiotic.The results indicate that fungi may play an important role in COD removal of oxytetracycline-production wastewater treatment.Bacterial community structure analysis shows that Alphaproteobacteria(23.7%) and Betaproteobacteria(22.0%) are predominant groups,and then Acidobacteria(17.0%) and Bacteroidetes(11.9%).