How do you reduce your waste? 19/02/2020 Our outlets currently are leading the way in recycling with rates. We currently recycle paper, card, tetra paks, oil, left-over food & trimmings, plastic bottles, cans and lots more smaller items. We have achieved Gold in the Universities & Colleges Green Impact Awards. Food waste from catering outlets on campus is collected by the University approved waste contractor from our 240lt wheelie bins. The primary disposal process for the University’s food waste is anaerobic digestion. The collected food waste is used in anaerobic digesters to produce renewable energy. Approximately 100 tonnes of food waste recycled via Anaerobic Digestion on campus per year.