Innovative hyper-thermophilic aerobic submerged membrane distillation bioreactor for wastewater reclamation.

Autor: Le HQ; Institute of Environmental Engineering and Management, National Taipei University of Technology, No.1, Sec. 3, Zhongxiao E. Rd, Taipei, 10608, Taiwan; Faculty of Chemistry and Environment, Dalat University, 01 Phu Dong Thien Vuong Street, Da Lat City, 66000, Viet Nam., Duong CC; Southern Institute of Water Resources Research, 658 Vo Van Kiet Street, District 5, Ho Chi Minh City, 700000, Viet Nam., Chang HM; Institute of Environmental Engineering and Management, National Taipei University of Technology, No.1, Sec. 3, Zhongxiao E. Rd, Taipei, 10608, Taiwan., Nguyen NC; Faculty of Chemistry and Environment, Dalat University, 01 Phu Dong Thien Vuong Street, Da Lat City, 66000, Viet Nam., Chien IC; Department of Water Resources and Environmental Engineering, Tamkang University, New Taipei City, 251301, Taiwan., Ngo HH; Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia., Chen SS; Institute of Environmental Engineering and Management, National Taipei University of Technology, No.1, Sec. 3, Zhongxiao E. Rd, Taipei, 10608, Taiwan. Electronic address: f10919@ntut.edu.tw.
Jazyk: angličtina
Zdroj: Chemosphere [Chemosphere] 2024 Aug; Vol. 362, pp. 142743. Date of Electronic Publication: 2024 Jun 29.
DOI: 10.1016/j.chemosphere.2024.142743
Abstrakt: For the first time, a hyper-thermophilic aerobic (>60 °C) bioreactor has been integrated with direct submerged membrane distillation (MD), highlighting its potential as an advanced wastewater treatment solution. The hyper-thermophilic aerobic bioreactor, operating up to 65 °C, is tailored for high organic removal, while MD efficiently produces clean water. Throughout the study, high removal rates of 99.5% for organic matter, 96.4% for ammonia, and 100% for phosphorus underscored the impressive adaptability of microorganisms to challenging hyper-thermophilic conditions and a successful combination with the MD process. Despite the extreme temperatures and substantial salinity accumulation reaching up to 12,532 μS/cm, the biomass of microorganisms increased by 1.6 times over a 92-day period, representing their remarkable resilience. The distillation flux ranged from 6.15 LMH to 8.25 LMH, benefiting from the temperature gradient in the hyper-thermophilic setting and the design of the tubular submerged MD membrane module. The system also excels in pH control, utilizing fewer alkali and nutritional resources than conventional systems. Meiothermus, Firmicutes, and Bacteroidetes, the three dominant species, played a crucial role, showcasing their significance in adapting to high salinity and decomposing organic matter.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Crown Copyright © 2024. Published by Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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