关键词: 厨余垃圾, 脱水沼渣, 快速陈腐化, 工艺参数, 热量平衡

Abstract: A large amount of dehydrated biogas residue was produced from dry anaerobic fermentation project of food waste in China， and could not be directly used for soil resource utilization before being rotten further. So far there was lack of targeted ventilation and heating strategy research on rapid decay， and a lack of whole-plant thermal accounting. For this purpose， centrifugal dehydrated biogas residue produced from dry anaerobic engineering of food waste was used to study the ventilation and heating strategy for rapid decay. And the feasibility of applying thermal equilibrium for rapid decay engineering was analyzed. The results showed that after adding 25% rice straw auxiliary materials， adopting ventilation volume of 0.05 m3/（min·m3）， using ventilation strategy of aeration for five minutes every thirty minutes， utilizing heating strategy of 55 ℃ throughout and replenishing water strategy of maintaining water content higher than 40%， it could be completely decayed in sixteen days. And the demand heat could be completely originated from waste heat of biogas power generation.

Key words: food waste, dehydrated biogas residue, rapid decay, process parameters, thermal equilibrium