Sustainable biodegradation of phenol by immobilized Bacillus sp. SAS19 with porous carbonaceous gels as carriers

Journal of Environmental Management
Qian KeJianrong Chen

Abstract

In this study, high-efficient phenol-degrading bacterium Bacillus sp. SAS19 which was isolated from activated sludge by resuscitation-promoting factor (Rpf) addition, were immobilized on porous carbonaceous gels (CGs) for phenol degradation. The phenol-degrading capabilities of free and immobilized Bacillus sp. SAS19 were evaluated under various initial phenol concentrations. The obtained results showed that phenol could be removed effectively by both free and immobilized Bacillus sp. SAS19. Furthermore, for degradation of phenol at high concentrations, long-term utilization and recycling were more readily achieved for immobilized bacteria as compared to free bacteria. Immobilized bacteria exhibited significant increase in phenol-degrading capabilities in the third cycle of recycling and reuse, which demonstrated 87.2% and 100% of phenol (1600 mg/L) degradation efficiency at 12 and 24 h, respectively. The present study revealed that immobilized Bacillus sp. SAS19 can be potentially used for enhanced treatment of synthetic phenol-laden wastewater.

Citations

Dec 12, 2019·Applied Microbiology and Biotechnology·Yifan LiuHongzhi Tang
Jul 1, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Jiafang CaiXiaomei Su
Dec 11, 2019·Environmental Monitoring and Assessment·Magdalena ZaborowskaJan Kucharski
Nov 23, 2019·Journal of Environmental Management·Cheng ZhangDeke Xing
Jan 20, 2022·World Journal of Microbiology & Biotechnology·Genesis Escobedo-MoralesMiriam Paulina Luévanos-Escareño

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