Abstract
The ecosystem in the Qinghai-Tibetan Plateau region is fragile. And the excessive altitude and lower temperatures can lead to regional variations in the community composition and metabolic processes of microorganisms in wastewater treatment systems. To identify these variations, this paper explores the microbial community structure and metabolic processes of activated sludge in A2O wastewater treatment systems in alpine regions based on 16S rRNA sequencing technology and the PICRUSt2 database. Also, the effect of gradual changes in DO concentration on the biological treatment system was examined and analyzed. The results show that the composition of the microbial community is distinct compared to that of the plain areas. norank_f__AKYH767 and IMCC26207 were found as enriched bacterial genera in the aerobic and anoxic tanks in the alpine region, respectively. Microbial communities in alpine areas are more perceptive and competent in processing environmental signals. The degradation of carbon and nitrogen pollutants is not strongly affected by high altitude, provided that the DO concentration is not lower than 1.0 mg/L.
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Due to the confidentiality of the experimental data and the experimental research being in the basic mechanism research stage, the experimental data will not be disclosed for the time being. The data set generated and/or analyzed during the current research period cannot be publicly obtained but can be obtained from the corresponding author, according to reasonable requirements obtained there. The data in this article can be used after obtaining the consent of all the authors. The email address for obtaining data: guo_mingzhe126@163.com.
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This work was supported by the National Natural Science Foundation of China (No. 51868069) and the Eighth Postgraduate Education Innovation Program Project of Tibetan Agricultural and Animal Husbandry University (YJS2022-30).
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All the authors contributed to the study’s conception and design. Material preparation, data collection, and analysis were performed by Mingzhe Guo, Jun Wang, Junhao You, Yongchen Zong, and Chunhui Fu. The first draft of the manuscript was written by Mingzhe Guo, and all the authors commented on the previous versions of the manuscript. All the authors read and approved the final manuscript.
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Guo, M., Wang, J., You, J. et al. The Influence of DO on the Microbiological Community of the A2O Treatment of Municipal Wastewater in Alpine Regions. Water Air Soil Pollut 233, 470 (2022). https://doi.org/10.1007/s11270-022-05943-9
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DOI: https://doi.org/10.1007/s11270-022-05943-9