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Thickening, dewatering & drying

Sludge drying refers to processes where moisture is removed from sludge as water vapour. These processes often require pre-treatment ('conditioning'). With sludge thickening or dewatering, moisture is removed as a liquid.

Thickening, dewatering & drying related videos

Filter press, tons per hour Source: Crystal Lakes / YouTube

Filter press, tons per hour

A video demonstrating how a filter press for sludge dewatering works.

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Thickening, dewatering & drying features and blogs

Fig. 4.  SP filtrate and acidified sludge samples
Feature

Phosphorus recovery by sludge acidification and dewatering

A pilot-scale Danish study of phosphorus extraction from acidified anaerobic and aerobic sludge samples has revealed removal to be more effective from anaerobic sludges, even though the digested sludge alkalinity increases the total acid demand.

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