微塑料
生物膜
流出物
污水处理
废水
微生物种群生物学
环境科学
污染
生态学
生物
细菌
环境工程
遗传学
作者
Jin-Kyung Hong,Hye-Cheol Oh,Tae Kwon Lee,Seog-Ku Kim,Daemin Oh,Jae-Hwan Ahn,Saerom Park
出处
期刊:Water
[MDPI AG]
日期:2023-10-26
卷期号:15 (21): 3746-3746
摘要
Microplastics (MPs), which result from the breakdown of plastic waste, have become ubiquitous in various environmental compartments. The “plastisphere”, referring to the unique bacterial communities inhabiting plastic debris, includes pathogens and antibiotic resistance genes. Wastewater treatment plants (WWTPs) are hotspots for plastisphere formation, but significant releases of MPs still occur. This study investigates the microbial communities on polystyrene (PS) MPs through in situ deployment across primary, secondary, and tertiary WWTP stages. Biofilms formed on the PS MPs exhibited greater bacterial diversity than background waters. Certain genera acted as pioneers in the biofilms, attracting and facilitating the accumulation of other microbes from background waters. The biofilms formed on the MPs became more resistant to treatment processes compared to freely floating bacteria. This study sheds light on the evolution of microbial communities on MPs within WWTPs and their roles as carriers of microbes in effluents, with implications for environmental and public health. Understanding these dynamics is crucial for effective control over MPs and microbial pollution in WWTPs.
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