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Bio lm Processes and Control inWater andWastewater Treatment, Comprehensive Water Quality and Puri cation

TitleBio lm Processes and Control inWater andWastewater Treatment, Comprehensive Water Quality and Puri cation
Publication TypeBook Chapter
Year of Publication2014
AuthorsButler CS, Boltz J.P.
Book TitleReference Module in Earth Systems and Environmental Sciences, from Comprehensive Water Quality and Purification
Volume3
Pagination90-107
PublisherElsevier Major Reference Work
ISBN978-0-12-409548-9
KeywordsBiofilm, Biofilm control, Biofilm treatment, Biofouling, Biologically active filters, Fluidized bed reactors, Membrane biofilm reactors, Microbial fuel cells, Moving bed biofilm reactors, Suspended biofilm reactors, Trickling filters
Abstract

Biofilms are important in water and wastewater treatment systems. Biofilms are aggregates of microorganisms suspended in a matrix of extracellular polymeric substances attached to a surface. Their resistance to toxic shocks and retention of slow-growing microorganisms make biofilms advantageous wastewater treatment strategies, achieving efficient removal of a variety of contaminants. Conversely, biofilm mass transfer resistance and predation protection allow them to persist in water distribution systems and other treatment infrastructure where they corrode pipes, reduce pressure head, and allow pathogen persistence. This chapter outlines fundamental biofilm processes, highlights the benefits of biofilm treatment processes, and describes strategies for biofilm control.

URLhttp://dx.doi.org/10.1016/B978-0-12-382182-9.00083-9
DOI10.1016/B978-0-12-382182-9.00083-9