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Laboratory anaerobic digestion studies were conducted to determine the effect of extracellular polymeric substances (EPS) on dewaterability of sludge (TS) with humus soil powder (HS) or not. In this study, an available stratification approach aimed at better understanding the factors influencing the sludge dewaterability was developed, which EPS were divided into soluble EPS and bound EPS by centrifuge...
A microbial biofilm is structured mainly by a protective sticky matrix of extracellular polymeric substances. Quantifying such structures is useful for microbiologists and a correct image segmentation process helps substantially reduce errors in quantification. This paper proposes an approach to segmentation of biofilm images using optimal multilevel thresholding and indices of clustering validity...
The effect of shear stress on the EPS secretion was investigated in a suspended carrier biofilm reactor. A sudden increase of shear stress on the biofilm enhanced the EPS- polysaccharides secretion after an acclimation period. However, as the biofilm's structure reestablished and reached a steady state again, the EPS-polysaccharides secretion dropped down and stayed at a value which approximated to...
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