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Gravity belt thickeners

Gravity belt thickening (GBT) thickens sludge by allowing the water (or filtrate) to drain from the sludge under gravity through a permeable medium (a recirculating conveyor belt) on which the sludge sits. The sludge solids concentration is increased along the length of a porous belt as water drains through it, the sludge solids forming a layer on the belt surface.

Gravity belt thickeners related videos

Gravity belt thickener, Alfa Laval Source: Alfa Laval / YouTube

Gravity belt thickener, Alfa Laval

A video to demonstrate the workings of the Alfa Laval AS-H gravity belt thickener which can be used for municipal sludge, and industrial sludge that flocculates.

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Gravity belt thickeners 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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