混合有机废弃物资源化处理方案设计--以安徽农业大学为例

摘要

为实现混合有机废弃物的资源化处理与综合利用,以安徽农业大学为例,对该校各学生食堂产生的餐厨废弃物及农业园温室生产有机废弃物等为原料,以沼气工程厌氧发酵技术为核心,将混合有机废弃物转化为清洁可再生能源及高品质有机肥原料；方案设计日处理量3t,需建设全混式厌氧反应器(CSTR)225m3；可实现年处理混合有机废弃物约800t,年产沼气约4.8万m3,沼渣、沼液有机肥原料约400t；所产沼气用于厌氧工程加热、保温,沼液沼渣用作农业园温室生产有机肥料；本方案的实施可改善校园环境,形成生态、环保的校园氛围,建立循环农业基本模式。%For the purpose of reclaim and comprehensively utilizing mixed organic wastes, this re-search, taking Anhui Agricultural University as an example, converts mixed organic wastes into clean re-newable energy and high-quality organic fertilizers using the organic wastes produced in school canteens and greenhouses as the raw materials, and anaerobic fermentation technology for biogas plants as the core. The project needs a CSTR-typed reactor 225m3 with a daily treatment capacity of 3t and 800t organic wastes per year, which can produce 48,000m3 biogas a year and 400t biogas residue and biogas slurry. The biogas can be applied to heating and thermal insulation for anaerobic projects; moreover, biogas slurry and biogas residue can be used as organic fertilizers in greenhouses. The implementation of the project can help improve campus environment, form an ecology and environment friendly atmosphere and establish a basic mode of recycling agriculture.