The microbial diversity and community structure of activated sludge in the biological treatment units of five municipal WWTPs and two industrial WWTPs were studied. The results showed that industrial WWTPs had the lowest diversity and abundance of activated sludge microbial communities, indicating that industrial wastewater inhibited the growth of microbial communities. In the correlation analysis between environmental factors and microbial diversity indices, pH and COD showed a significant negative correlation with the number of OTUs and microbial diversity. The main dominant microbial genus were Hyphomicrobium, Acinetobacter, Novosphingobium, Acinetobacter, and Meiothermus.  Both principal coordinate analysis (PCoA) and phylogenetic analysis showed large differences in the structure of municipal and industrial microbial community structure, indicating the uniqueness of the activated sludge community structure in industrial WWTPs. Gene function predictions indicated that LJ had higher metabolic function associated with inorganic salt and lipid metabolism. Further co-occurrence network analysis showed that many of the key industrial WWTPs belonged in the same module, suggesting that they had strong interspecific interactions but were relatively independent from other microorganisms in the municipal WWTPs. This study broadens our understanding of microbial community differences between municipal WWTPs and industrial WWTPs.

None Ziyan Yang

Feng Guo

Qing Wang

Jiaying Zhao

Yilong Wang

Xinfeng Zhu

Yanli Mao

Junfeng Wu

Zhongxian Song

Hongwei Hu

Wei Peng

Biao Liu

Biology Bulletin

生物学公报 (IZVESTIYA ROSSIISKOI AKADEMII NAUK – SERIYA BIOLOGICHESKAYA) 是普通生物学的跨学科期刊。它侧重于细胞生物学、生物化学、动物学、植物学、生理学和生态学领域的基础研究。该杂志发表了关于一般生物学当前问题的实验研究和调查的最新材料。它还发布有关普通生物学领域的科学会议和新书的信息。

The Biology Bulletin is an interdisciplinary journal of general biology that focuses on fundamental research in the fields of cell biology, biochemistry, zoology, botany, physiology, and ecology. The journal publishes the latest experimental studies and surveys on current issues in general biology, as well as information about scientific conferences and new books in the field.

《Biology Bulletin》（生物学公报）是一本跨学科的普通生物学期刊，主要关注细胞生物学、生物化学、动物学、植物学、生理学和生态学等领域的基础研究。该期刊发表关于普通生物学当前问题的最新实验研究和调查材料，同时也发布与普通生物学领域相关的科学会议和新书的信息。

Category	Quartile
生物学	4
生物学, 生物学	4

Diversity of Activated Sludge Microbial Community Structure in Different Wastewater Treatment Plants

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