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

Drying

In sludge drying the moisture from sludge is removed as water vapour by heating, rather than being removed as a liquid via mechanical means such as in thickening or dewatering. The sludge is normally dried to solid concentrations above 65% to produce pellets or, at the highest solids concentrations of 90% or more, a powder. Pelleted or powdered sludge is more readily conveyed than the dewatered sludge of higher water content, which exists as large lumps.

Drying related videos

Solar dryer, OTEX Source: David Fang / YouTube

Solar dryer, OTEX

A video to demonstrate the principles of the OTEX solar sludge dryer.

Advert
Advert
Advert

Drying features and blogs

HTC/AD integration flowsheet
Feature

Co-processing of sewage digestate by hydrothermal carbonisation

Hydrothermal carbonisation (HTC) can be used to co-process anaerobic digestion (AD) digestate and lignocellulosic (or plant-based) feedstocks to improve the the hydrochar product quality. This AD waste co-processing route has been studied at bench scale.

Read article

More Drying topics…

More process and operation topics…