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Showing 1 to 5 of 5 for “"zone settling"”.
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An investigation of the effects of the addition of powdered activated carbon to the activated sludge of cellulose acetate manufacturing wastewater
… effluent suspended solids concentration because zone settling Velocity was the primary factor affecting effluent suspended solids. A type of activated sludge bulking, known as jelly formation, plagued the biological reactors but nitrogen addition appeared to solve the problem
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Settling characteristics of particles in a suspension of medium to high solids concentration
… intermediate to high solid concentrations three settling regimes are typically encountered, namely, zone, transition, and compression regimes. Recent studies have indicated that the validity of Kynch's formulation, which is the most widely used for sizing settling basins, is limited to the zone …
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Settling and sedimentation behavior of fine-grained materials
… an observed phenomenon that often occurs during settling and sedimentation processes of finer materials. However, it has been regarded as a minor factor affecting settling process, e.g. settling velocity or consolidation rate. In this study, settling behaviors of talcs, kaolins and attapulgite …
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High-Intensity Shear as a Wet Sludge Disintegration Technology and a Mechanism for Floc Structure Analysis
… iron was found to increase SVI and decrease zone-settling velocity, when added to reactors with mechanically disintegrated sludges. Similar trends were not observed in reactors dosed with ferrous iron. Preliminary results suggest that the ferric/ferrous redox chemistry may serve to enhance …
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Gravity selector-enabled kenaf recirculation and reuse as a renewable ballasting agent for sludge settleability enhancement in a municipal wastewater secondary process: A real wastewater pilot-scale study
… volume index from 170 to 50 mL/g and increase zone settling velocity from 2.5 to 7 m/h over 110 days without compromising treatment performance. Because of the selective retention of the inert plant-based carrier represented as a volatile solid in the gravity selector underflow, a traditional …