To get an introduction of how the circular economy of food waste works, check out the BioCycle:

• The BioCycle - From Resource to Waste to Resource

If you want to dig in more deeply into the food waste management, you find additional resources in the Lectures for Future series "Residue and by-Product Based Bioresources" and "Sustainable Urban Bioresource Management" of the Hamburg Open Online University. Recommended lectures for this topic:

• "Territorial Biowaste Management: Local Food Waste Valorisation"
• "Biowaste Collection: Current Status and Factors Influencing Correct Sorting"