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Assessing the potential of foamed clay as a biological aerated filter (BAF) medium

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Abstract

Materials used previously as biological aerated filter (BAF) media have not combined optimal biofilm supporting properties with optimal wear characteristics. Increasing its bentonite content decreased the attrition rate and friability of foamed clay. Although the altered medium exhibited less surface roughness, results from small-scale reactors confirmed that it had maintained its biological attributes. This suggests that surface roughness has a limited influence on biofilm formation.

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Authors and Affiliations

  1. School of Water Sciences, Cranfield University, Cranfield, Bedfordshire, MK43 , OAL, UK

    Rebecca E. Moore, Jo Quarmby & Tom Stephenson

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  1. Rebecca E. Moore
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  2. Jo Quarmby
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  3. Tom Stephenson
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Moore, R.E., Quarmby, J. & Stephenson, T. Assessing the potential of foamed clay as a biological aerated filter (BAF) medium. Biotechnology Letters 21, 589–593 (1999). https://doi.org/10.1023/A:1005599228806

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  • DOI: https://doi.org/10.1023/A:1005599228806

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