Residuals & Biosolids Resources

Residuals and biosolids are by-products from the production, processing or treatment of various products that can be used as a soil amendment or a source of energy, as opposed to being disposed of as a waste. Examples of residuals and biosolids include by-products from the food industry and the treatment of wastewater that meet quality standards. Strict regulations apply to the management of these by-products. Click on the boxes below to learn more about the beneficial use of residuals and biosolids.

What's Happening Now.. Residuals & Biosolids Research Fund
Deadline September 22, 2023
Upcoming Events WEAO Annual Conference in Toronto April 16-18 2023 Connecting With the Future Generation...

Grade 7 Biosolids Curriculum
Video Example Biosolids – Naturally Sustainable (In English) Slide Biosolids – Naturally Sustainable (En Français)

List of Contacts

Questions on Regulations

Applying Residuals and Biosolids to Land

Potential Sources of Residuals and Biosolids

(Coming soon!)


Engaging Residuals (eg. Compost and Digestate)

WEAO’s R&B Committee invite

Other Ontario Associations