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Paddle dryers

Paddle dryers are based on externally-heated paddles (or blades) rotating in the mass of sludge solids. There are normally either two or four sets of blades which rotate together to continuously cut into and stir the sludge solid lumps into smaller particles to continuously replenish the drying surface. Paddle dryers can operate without back-mixing since the agitation provided by the rotating paddles is sufficient to avoid the formation of sticky sludge.

Paddle dryers related videos

Paddle dryer for sludge treatment Source: Klooth Alex / YouTube

Paddle dryer for sludge treatment

A video to demonstrate a paddle dryer for sludge in operation.

Paddle dryers features and blogs

PFAS molecule
Blog

How do you solve a problem like PFAS?

PFAS (per- and polyfluoroalkyl substances) are generated from the breakdown of fluorinated polymers. The activation barrier for their breakdown is huge and the only fully commercialised processes possibly capable of destroying PFAS are thermochemical ones.

Read article

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More process and operation topics…