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The low temperature of the snowmelt water in the spring seems to affect the biofiltration of wastewaters; biofilters clog rapidly during the critical period of March and April. This study presents the results of biochemical tests carried out in wash-water (biomass) of a Biodrof ( R)-type biofilter. These tests deal with the measurement of hydrolase, dehydrogenase (DHA) and total polysaccharides...
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