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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

Schematic of intensification of AD by thermal hydrolysis, showing thickening, TH, AD and post-AD DW. Coversion of biogas be CHP engine included.
Blog

Pretty intense: the intensification of sewage sludge processes

Sludge intensification processes increase the sewage sludge solids concentration through thickening/dewatering or the biogas generation by digestion. But at what point do you stop extracting more water from the sludge or enhancing biogas production?

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