Article Dans Une Revue Bioresource Technology Année : 2021

Acclimatization of microbial community of submerged membrane bioreactor treating hospital wastewater

Résumé

This study was performed to understand the dynamics of the microbial community of submerged membrane bioreactor during the acclimatization process to treat the hospital wastewater. In this regard, three acclimatization phases were examined using a mixture of synthetic wastewater (SWW) and real hospital wastewater (HWW) in the following proportions; In Phase 1: 75:25 v/v (SWW: HWW); Phase 2: 50:50 v/v (SWW: HWW); and Phase 3: 25:75 v/v (SWW: HWW) of wastewater. The microbial community was analyzed using Illumina high throughput sequencing to identify the bacterial and micro-eukaryotes community in SMBR. The acclimatization study clearly demonstrated that shift in microbial community composition with time. The dominance of pathogenic and degrading bacterial communities such as Mycobacterium, Pseudomonas, and Zoogloea was observed at the phase 3 of acclimatization. This study witnessed the major shift in the micro-eukaryotes community, and the proliferation of fungi Basidiomycota was observed in phase 3 of acclimatization.

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Dates et versions

hal-03591860 , version 1 (28-02-2022)

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Bhagyashree Tiwari, Balasubramanian Sellamuthu, Sarah Piché-Choquette, Patrick Drogui, Rajeshwar Tyagi, et al.. Acclimatization of microbial community of submerged membrane bioreactor treating hospital wastewater. Bioresource Technology, 2021, 319, pp.124223. ⟨10.1016/j.biortech.2020.124223⟩. ⟨hal-03591860⟩

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