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Rotary drum thickeners

Rotary drum thickening increases the sludge solids concentration by agitating the solids in a slowly-rotating cylindrical drum with porous walls though which the water (or filtrate) drains. The drum is normally 0.5−1.5 m diameter drum and rotates at speeds between 5 and 20 RPM while the sludge continually passes along its axis.

Rotary drum thickeners related videos

Rotary drum thickener, Andritz Source: ANDRITZ GROUP /

Rotary drum thickener, Andritz

A video to demonstrate the principles of the Andritz rotary drum thickener.

Rotary drum thickeners features and blogs

Blog eu biosolids disposal header
Blog

Biosolids vs sewage sludge

Biosolids are usually considered to be the useful fraction of the sewage sludge. They are generally higher in solids concentration and lower in pathogen content, having gone through a stabilisation process such as chemical dosing, digestion and/or drying.

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