Your web browser is out of date.

Update your browser for better security, speed and to get the best experience on this website.

Update your browser

Disc dryers

Disc dryers operate in a manner similar to paddle dryers. A series of vertical discs or rings mounted on a single shaft within a cylindrical vessel rotate in a mass of sludge passing through the vessel. The shaft and discs are externally heated by steam or hot oil. For disc dryers, unlike paddle dryers, a proportion of the dried product sludge is often recycled to avoid the formation of the sticky phase.

Advert
Advert
Advert

Disc dryers features and blogs

Blog sludge worth shutterstock 16047946
Blog

How much is sludge worth?

The UK regulator OFWAT has introduced legislation based on the notion of sludge as a resource. Its value is often expressed in terms of calorific content, and the phosphate is also potentially recoverable. But how exactly should sludge value be quantified?

Read article

More Disc dryers topics…

More process and operation topics…