Please use this identifier to cite or link to this item: https://scholar.dlu.edu.vn/handle/123456789/4064
Title: Assessment of temperature dynamics and microbial community responses in aerobic membrane bioreactors from mesophilic to hyper-thermophilic conditions
Authors: Lê, Quang Huy 
Chen, Shiao-Shing
Duong, Chinh Cong
Nguyễn, Công Nguyên 
Chien, I-Chieh
Hsiao, Shiang-Sheng
Keywords: Activated sludge, Microbial adaptation, Temperature effects, Hyper-thermophilic, Aerobic membrane bioreactor
Issue Date: 2024-11-28
Publisher: Springer Berlin Heidelberg
Journal: Environmental Science and Pollution Research
Volume: 31
Pages: pages 65849–65865, (2024)
Abstract: 
This study investigates the impact of temperature variations on the performance of an aerobic membrane bioreactor (MBR) as it transitions from mesophilic (30 °C) to hyper-thermophilic (65 °C) conditions. The microbial community structure was analyzed using 16S rRNA gene sequencing to assess how temperature influences microbial diversity and composition. In mesophilic conditions, the system exhibited high alpha diversity with a Shannon index of 5.92 and 224 observed species. As the temperature increased to 45 °C and 65 °C, diversity decreased significantly, with Shannon indices of 2.54 and 2.82, and 96 and 77 observed species, respectively. Additionally, nutrient removal efficiency, particularly for ammonia and phosphorus, declined at higher temperatures. COD removal efficiency reached 96.5% at 30 °C but decreased to 57% at 45 °C before recovering to 94% at 65 °C. Notably, biomass yield at hyper-thermophilic conditions was 37% lower than at mesophilic conditions, with a yield of 0.06 gVSS/gCODremoved. These findings highlight the potential advantages of operating under hyper-thermophilic conditions, including reduced sludge production, lower nutrient requirements, and increased organic loading capacity. The results provide valuable insights into optimizing high-temperature wastewater treatment processes for more efficient and sustainable industrial applications.
URI: https://scholar.dlu.edu.vn/handle/123456789/4064
URL: https://doi.org/10.1007/s11356-024-35561-3
ISSN: 1614-7499
DOI: 10.1007/s11356-024-35561-3
Type: Bài báo đăng trên tạp chí thuộc ISI, bao gồm book chapter
Appears in Collections:Tạp chí (Khoa Hóa học và Môi trường)

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