Utilization of biosolids for glucose oxidase production: A potential bio-fenton reagent for advanced oxidation process for removal of pharmaceutically active compounds

JOURNAL OF ENVIRONMENTAL MANAGEMENT

卷:271

Article

Vaithyanathan, Vasanth Kumar¹  Ravi, Shobana²  Leduc, Roland¹  Vaidyanathan, Vinoth Kumar²  Cabana, Hubert¹ 

[1] Univ Sherbrooke, Fac Engn, Environm Engn Lab, Sherbrooke, PQ J1K 2R1, Canada

[2] SRM Inst Sci & Technol, Dept Biotechnol, Integrated Bioproc Lab, Kattankulathur 603203, Tamil Nadu, India

关键词: Glucose oxidase;    Biosolids;    Valorization;    Pharmaceutically active compounds;    Bio-fenton;   

DOI  :  10.1016/j.jenvman.2020.110995

来源: Elsevier

【 摘 要 】

The current work focuses on the production of glucose oxidase (GOD) in sterilized biosolid (BS) slurries containing BS and municipal wastewater effluent. Various parameters were optimized for maximizing the GOD production and the effects of biostimulation on GOD production was investigated by adding synthetic media components. The studies on inoculum characteristics at an inoculum age of 72 h and inoculum size of 20% (w/v) produced high GOD activities of around 6012 U/L in 25% (dw/v) BS media. Further, the effect of ultrasonication time was determined to release BS-bound GOD in order to maximize enzymes recovery. Using 1000 U/L of the BS-based GOD for 0.55 M glucose oxidation produced the maximum H2O2 concentration of 216 ppm. The produced H2O2 was utilized for bio-Fenton based advanced oxidation process for the partial removal of 15 pharmaceutically active compounds.

【 授权许可】

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