强制通风堆肥技术处理农村生活垃圾的可行性研究

对北京市海淀区北部新区农村生活垃圾中的有机成分进行3组不同物料配比的堆肥试验,在堆肥周期内对堆体的理化性质、腐熟度指标与控制参数进行了研究.结果表明:农村生活垃圾中的有机成分含水率偏高,不利于直接堆肥.采用强制通风静态好氧堆肥,堆肥过程中温度、含水率、体积、pH、电导率、碳氮比的变化与一般堆肥过程各参数的变化规律相似,...

Feasibility of Rural Domestic Waste Treatment Using Forced Aeration Composting Technology

Three kinds of material proportion of organic component in rural domestic waste in New North Zone of Haidian district,Beijing were used for the composting experiment.Physicochemical property,putrescibility and controlling parameters of pile during composting were researched.The results showed that moisture content of organic component in rural domestic waste was too high to directly composting.Using static composting of forced aeration,change regularity of temperature,moisture content,volume,pH,conductivity,and carbon-nitrogen ratio during the composting was similar with change of parameters during general composting.Index of the compost product conformed to control standards for waste compost for agricultural use.It indicated that static composting of forced aeration was suitable to food residue treatment in New North Zone.Comparing with food residue compost,the temperature of compost with chicken manure and straws increased rapidly,it can achieve the purpose of volume reduction,harmless and biological drying,the rate of volume reduction was over 70%.Organic component compost almost reached maturity after 21 days from aspects of putrescibility index of compost estimate,such as compost temperature,apparent characters,carbon-nitrogen ratio,and germination index.The composting effect is best when material proportions of food residue,straws and chicken manure were 75%,10% and 15% respectively,according to the experimental data of three fermentation tanks.