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Filter presses

A filter press provides sludge dewatering by pressing the sludge between a series of 20-80 porous plates, forcing water from the sludge by applying high pressures to the sludge layers. It is the only mechanical thickening or dewatering technology that is limited to batchwise (rather than continuous) operation, and can routinely achieve cake product dry solids concentrations of 35-45%.

Filter presses 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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Filter presses features and blogs

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Feature

Anaerobic digestion optimization through thermal hydrolysis pre-treatment

Pre-treatment of sludge by thermal hydrolysis upstream of anaerobic digestion is used to improve AD efficiency. A study looked at (pre-)commissioning data for a full-scale AD installation undergoing upgrading with TH to assess the basis for optimisation.

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