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

被引：78

作者：

Ke, Qian ^{[1
]}

Zhang, Yunge ^{[1
]}

Wu, Xilin ^{[1
]}

Su, Xiaomei ^{[1
]}

Wang, Yuyang ^{[1
]}

Lin, Hongjun ^{[1
]}

Mei, Rongwu ^{[2
]}

Zhang, Yu ^{[2
]}

Hashmi, Muhammad Zaffar ^{[3
]}

Chen, Chongjun ^{[4
]}

Chen, Jianrong ^{[1
]}

机构：

[1] Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua 321004, Peoples R China

[2] Environm Sci Res & Design Inst Zhejiang Prov, Hangzhou 310007, Zhejiang, Peoples R China

[3] COMSATS Inst Informat Technol, Dept Meteorol, Islamabad 44000, Pakistan

[4] Suzhou Univ Sci & Technol, Sch Environm Sci & Engn, Suzhou 215009, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL MANAGEMENT | 2018年 / 222卷

基金：

中国国家自然科学基金;

关键词：

Resuscitation-promoting factor; Bacillus sp SAS19; Phenol biodegradation; Carbonaceous gels; Immobilized bacteria; EXTRACELLULAR ORGANIC-MATTER; ACINETOBACTER-VENETIANUS; ENHANCED DEGRADATION; BACTERIAL COMMUNITY; WASTE-WATER; DIESEL OIL; ADSORPTION; CULTURE; RESUSCITATION; BIPHENYL;

D O I：

10.1016/j.jenvman.2018.05.061

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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.

引用

页码：185 / 189

页数：5

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