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Rotary press

A rotary press dewaters sludge using a cylindrical vessel housing two slowly-rotating (at < 2 RPM) circular permeable screens which are sandwiched together. The sludge enters the channel formed between the two screens and follows a circular path around the channel at a small applied pressure, the water (or filtrate) passing through the screen as the sludge passes along the channel.

Rotary press related videos

Sludge solids separation theory Source: Judd Water & Wastewater Consultants / YouTube

Sludge solids separation theory

Sludge solids separation theory − a brief introduction to the theories around sludge sedimentation, cake filtration and cake compression.

Rotary press 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…