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 quality

Sludge is the main waste stream from the treatment of wastewater. Its characteristics depend on both the original feedwater quality and the type of the unit operation from which the sludge is discharged. For conventional municipal wastewater treatment, the two main sludge streams are from the primary sedimentation stage, producing primary sludge, and the secondary biological treatment stage, producing waste activated sludge (WAS) if the biological treatment is based on the activated sludge process

Sludge quality related videos

Sludge processing: the basics Source: Judd Water & Wastewater Consultants / YouTube

Sludge processing: the basics

An introduction to sludge treatment − a brief overview to sludge processing in the context of wastewater treatment.

Sludge quality 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

More process and operation topics…