Biocarriers for biofilm immobilization in wastewater treatments: a review

Al-Amshawee, Sajjad and Mohd Yusri, Mohd Yunus and Vo, Dai-Viet N. and Tran, Ngoc Han (2020) Biocarriers for biofilm immobilization in wastewater treatments: a review. Environmental Chemistry Letters, 18. pp. 1925-1945. ISSN 1610-3661. (Published)

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Biofilm carriers, named ‘biocarriers’, are solids that allow the good attachment of microbes during wastewater treatment. Biocarriers also act as redox mediators to speed up the biotransformation of contaminants in industrial effluents, yet it is challenging to choose a biocarrier material that achieves strong biofilm adhesion and high degradation rates. Here we review insoluble polymeric biocarriers with focus on selecting a biocarrier, biofilm growth, metabolic pathways, applications, surface modification, and composites. According to the efficiency to decrease the chemical oxygen demand, conventional and modified composite biocarriers are rated as following: polyvinyl alcohol > polyurethane > polyethylene > polypropylene, and polyvinyl alcohol > waste tire > polyurethane > polyethylene, respectively. We also discuss biological and physical fouling.

Item Type: Article
Uncontrolled Keywords: Wastewater treatment, Polymeric biofilm carrier, Packing material, Attached growth biofilm system, Biofilter fouling
Subjects: T Technology > TP Chemical technology
Faculty/Division: Institute of Postgraduate Studies
Faculty of Chemical and Process Engineering Technology
Depositing User: Noorul Farina Arifin
Date Deposited: 08 Jan 2021 10:19
Last Modified: 08 Jan 2021 10:19
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