A PILOT-PLANT FOR SOLAR DRYING OF FOOD WASTES FOR FEED PRODUCTION

Using the new developed solar waste dryers a pilot plant of 50 sqm was built to dry restaurant leftovers for feed production. The food waste s were dried at high temperatures (50-100 degrees C) so that also ster ilisation was achieved. A destillation performance of 4 kg water/sqm d was observed on sunny days. The low cost material used allowed to red uce costs to 7 Dollars/sqm. The first drying experiences with differen t materials and the drying technique is given. Also dangers in future applications due to entering human food chain are discussed.