农村垃圾蚯蚓堆肥处理的研究

将传统堆肥与蚯蚓堆肥处理相结合,对蚯蚓处理牛粪、玉米秸秆和废弃菜叶等农村垃圾进行了研究,检测处理过程中物料性质的变化和有效磷的含量变化。结果显示:接种蚯蚓时,物料的初始C/N在30~35之间,氨氮浓度在500 mg/kg以下,经蚯蚓处理后,物料的有机质和C/N下降较快,氨氮浓度下降至200 mg/kg左右,总磷含量和有效磷含量显著上升。通风堆肥和翻堆堆肥预处理后,经过蚯蚓堆肥,有效磷分别增加59.09%和53.54%。翻堆堆肥是更适合农村垃圾蚯蚓处理的预处理方法。

The Study on the Vermicomposting of Rural Waste

The vermicomposting of cow dung,corn stalks and waste vegetable leaves was studied by combining traditional composting with vermicomposting,and the variation of material properties and available phosphorus was investigated during the composting.When the initial C/N ratio and NH4+-N content was the range of 30 to 35 and below 500 mg/kg,respectively,the organic material and C/N ratio quickly degraded.The NH4+-N content decreased to 200 mg/kg,and the content of total phosphorus and available phosphorus significantly increased.The available phosphorus increased to 59.09% after forced aeration composting and vermicomposting,and it increased to 53.54% after windrow composting and vermicomposting.It suggests the windrow composting is an good pretreatment method of rural waste.