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

Sludge drying

Brown sewage sludge powder with coarser lumps

Sludge drying properties

Sludges of different origins and characteristics exhibit different behaviours when drying. These are most readily observed by correlating the mass water flux – the mass of water evaporated per unit surface area of solids per unit time (kg m-2 s-1) – against the moisture content of the sludge. This correlation normally reveals the three different drying phases:

  1. the adaptation/preliminary phase
  2. the constant drying rate phase, and
  3. the falling drying rate phase.
Learn more

More on sludge drying

Latest features and blogs

Feature sludge drying header
Feature

Microwave drying of sewage sludge: performance and energy demand

Microwave drying of mechanically-dewatered sewage sludge presents an alternative to the conventional convective and conductive thermal drying technologies. MW drying offers higher throughput capacities, and may be viable at smaller scales.

Read article
Example of a flash dryer for drying slurries Source: Hosokawa Micron B.V. / YouTube

How does a flash dryer work?

Animation of the Drymeister (DMR-H) flash drying system − a flash drying system from Hosokawa Micron

From our sponsors…

Explore more sludge processing content

You are in: