北方寒区牛粪无害化处理关键技术研究

为探索北方寒区规模化养牛场牛粪无害化处理模式,确定牛粪无害化处理关键技术,编制牛粪无害化处理操作规程。2007—2008年,以牛粪为原料进行了不同调理剂、翻堆次数、接种剂和不同环境温度条件下的无害化处理试验,对牛粪无害化处理的主要指标进行了测定。结果表明,不同调理剂都能完成牛粪无害化处理过程,调理剂不同可影响堆肥的养分含量,调理剂的选择要根据应用目的而定;翻堆次数对牛粪无害化处理指标影响不大,为节省成本,可3d左右翻堆1次;不同环境温度对牛粪无害化处理进程影响较大,环境温度≥10℃时,牛粪可在7～10d内完成无害化处理,环境温度在10～-10℃时,无害化处理时间一般为15～20d,北方寒区能满足这一条件的时间是每年的4—11月;环境温度低于-10℃,需采取保温措施才能完成牛粪无害化处理过程;当环境温度较高时,接种菌剂对牛粪无害化处理进程影响不大,当环境温度较低时,接种菌剂可促进牛粪无害化处理进程。

Key Technology of Caw Dung Composting Innocuous in Northern Cold Regions

This study aimed at optimizing the operating of cow dung composting non-hazardous treatment in large-scale cow farm in northern cold regions. Used cow dung as row material under different amendments, turning times, microbial inoculants and environment temperature conditions to make cow dung composting innocuous from 2007 to 2008, and determined indicators of innocuous. The conditioner experiment included four disposals. The results showed that rice chaff and turfy soil as conditioner could accelerate temper...