Biomodule - a combined structured and granulat media BAF

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dc.contributor.authorWilliams, T. R.
dc.contributor.authorStephenson, Tom
dc.date.accessioned2017-03-03T11:41:43Z
dc.date.available2017-03-03T11:41:43Z
dc.date.issued1999-03-03
dc.description.abstractBiological aerated filters operate as fixed film systems in which micro-organisms grow on a submerged fixed structured or granular inert support media within an aerated reactor (Stephenson et al., 1993). Periodic backwashing of the filter is required as the media bed gradually clogs due to the growth of biomass and retention of solids. The advantage of the BAF process is the small footprint it occupies relative to comparable processes such as activated sludge and trickling filters. The small footprint is due to the fact that the fixed film of biomass on the support material (media) leads to a high concentration of active bacteria per unit volume of the media and thereby to relatively small reactors. Another advantage is the retention of suspended solids that eliminate the need for final sedimentation tanks (Hagedorn et al., 1994). For the same degree of treatment, biofilters require approximately three times less aeration volume than activated sludge units, and twenty times less than trickling filters (Smith et al., 1992). In summary BAF systems are used for providing a treatment method for reducing the amount of organic carbonaceous material (BOD/COD), suspended solids and ammonia in wastewater.en_UK
dc.identifier.citationT.R. Williams and Tom Stephenson. Biomodule - a combined structured and granulat media BAF. 3rd International Meeting On Biological Aerated Filters (BAF3) - 3 March 1999, Cranfield University, UKen_UK
dc.identifier.isbn1861940157
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/11561
dc.language.isoenen_UK
dc.publisherSchool of Water Sciences, Cranfield Universityen_UK
dc.rights© 1999. The contents are world copyrighted by the School of Water Sciences, Cranfield University, in the first instance. Permission must be sought from the School of Water Sciences before the whole or any part of this document is transcribed.
dc.titleBiomodule - a combined structured and granulat media BAFen_UK
dc.typeConference paperen_UK

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3rd Symposium on Biological Aerated Filters (BAF3) - 1999