Fractal Analysis of Pore Distributions in Alum Coagulation and Activated Sludge Flocs

摘要

The information on floc porosity is essential for estimation of the permeability of the aggregate. The average porosity of alum and activated sludge flocs deter- mined in this study on thin sections of the aggregates as similar, varying in the range from 8 to 9/100. Similar porosity of the two different types of aggregates suggested that the permeability of these flocs could also be similar.