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Removal of biofilm from sand grains

Sarah McMath s.mcmath at surrey.ac.uk
Mon Jul 28 03:38:19 EST 1997

Does anyone have any suggestions of how to remove and enumerate biofilms
from sand grains?  The sand is from a slow sand filter which has been
running for 7 months and has been fed with treated water.  The filters have
been dosed periodically with Bacillus spores and Chlorella.  We have tried
DTT and a couple of enzymes with no sucess.


Sarah McMath 
Research Engineer

Centre for Environmental Health Engineering
Department of Civil Engineering,
University of Surrey,
Surrey GU2 5XH.

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