微生物制剂EM控制鸡粪堆制过程恶臭的研究

Study on odor control during chicken manure compost by microbial preparation EM

摘要: 以上海阿妮优美容保健品有限公司提供的微生物制剂──环境有用微生物群（简称EM）作为添加剂进行鸡粪堆肥腐熟对比试验，结果差异明显。EM处理的堆肥中NH－N含量比对照下降41.86％（10ｄ）～56.71％（20ｄ），NH－N散发量明显减少，且在后期有较强酿酒芳香味逸出，除臭效果显著。EM处理能加速堆肥腐熟，减少氮的气态损失，并可将无害化处理时间缩短到20ｄ。这些作用是由EM引入的外源微生物所引起的。

Abstract: The microbial preparation EM has been used as an additive to chicken manure compcot for decompositioncomparison tests. The results show that the NH-N contents of EM treatment are 41.86% (10 days)to 56. 71 %(20days) less than that of the controls and the NH-N emitted from EM treatment reduced significantly. In the late peri-od of EM treatment composting,a relatively strong brewery fragrance could be smelled,indlcating its high efficiency ofodor control.In addition,it can shorten the pollutlon-free treatment period to 20 days. Those effects are resulted fromEM introduced outside microbials.