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

被引：1

作者：

Le H.Q. ^{[1
,2
]}

Duong C.C. ^{[3
]}

Chang H.-M. ^{[1
]}

Nguyen N.C. ^{[2
]}

Chien I.-C. ^{[4
]}

Ngo H.H. ^{[5
]}

Chen S.-S. ^{[1
]}

机构：

[1] Institute of Environmental Engineering and Management, National Taipei University of Technology, No.1, Sec. 3, Zhongxiao E. Rd, Taipei

[2] Faculty of Chemistry and Environment, Dalat University, 01 Phu Dong Thien Vuong Street, Da Lat City

[3] Southern Institute of Water Resources Research, 658 Vo Van Kiet Street, District 5, Ho Chi Minh City

[4] Department of Water Resources and Environmental Engineering, Tamkang University, New Taipei City

[5] Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, 2007, NSW

来源：

Chemosphere | 2024年 / 362卷

关键词：

Aerobic wastewater treatment; Hyper-thermophilic activated sludge; Thermophilic microorganism;

D O I：

10.1016/j.chemosphere.2024.142743

中图分类号：

学科分类号：

摘要：

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. © 2024

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