好氧堆肥反应器试验系统设计与性能试验  

Design and Test on an Experimental Aerobic Composting Reactor System

作　　者：张安琪[1] 黄光群[1] 张绍英[1] 杨增玲[1] 韩鲁佳[1] 

机构地区：[1]中国农业大学工学院,北京100083

出　　处：《农业机械学报》2014年第7期156-161,共6页Transactions of the Chinese Society for Agricultural Machinery

基　　金：'十二五'国家科技支撑计划资助项目(2012BAD47B01);国家自然科学基金资助项目(31201684);教育部新世纪优秀人才支持计划资助项目(NCET-12-0524)

摘　　要：针对现有好氧堆肥反应器试验系统体积小、实时监测和反馈控制功能单一等问题,在已有研究基础上设计了一种好氧堆肥反应器试验系统。根据静力学及热力学原理,对反应器试验系统关键功能单元进行了优化设计,开发了适用于该好氧堆肥反应器的自动控制系统,并对其进行了好氧堆肥性能测试试验。反应器体积为100 L,并具有实时监测不同梯度温、氧数据的功能,其反馈控制系统含有3套反馈控制方案。试验结果表明:好氧堆肥反应器试验系统内堆体上、中、下层温度高于50℃的时间分别为8.1 d、7.2 d和4.8 d;堆体各层最终pH值均小于8,种子发芽指数均大于85%,堆肥试验效果良好。Considering the main problems of the small working volume, less functional on real-time monitoring and feedback control of current experimental composting reactor system, an experimental type of aerobic composting reactor system was designed and manufactured on the basis of existing research. According to the principle of statics and thermodynamics, the key functional units of the composting reactor system were optimized. Automatic control system for the aerobic composting reactor was introduced for a better control of composting process. Testing experiments were carried out to check the usability of the designed composting reactor system. The period of composting temperature higher than 50℃ lasted 8.1, 7.2 and 4. 8 days for each layer in the reactor system, respectively. The final pH value is less than 8 for composting materials of all layers. The final germination index （GI） for composting product of each layer are higher than 85% , respectively. All the three results show that the composting reactor performs well.

关 键 词：好氧堆肥 反应器 反馈控制 性能试验 

分 类 号：X705[环境科学与工程—环境工程] S141.4[农业科学—肥料学]