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餐厨垃圾自然升温堆肥工艺研究

Keywords: C/N,辅料,含水率,翻堆频率,粒径

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Abstract:

为研究餐厨垃圾发酵生产有机肥的可行性,优化堆肥发酵工艺,对堆体C/N、辅料、翻堆频率、粒径和pH值等可变因素进行了堆肥研究,结果表明,餐厨垃圾堆肥发酵的最佳条件为:C/N20~27,以粒径<5mm的稻草为辅料,含水率(65±5)%,翻堆频率1次/d(以保持堆体温度不超过70℃),一个堆肥周期内翻堆15~20次,堆肥周期为20d左右。产品理化指标检测符合有机肥料标准(NY525-2002),且堆肥工艺重复性好,生产成本低,具有较高的应用价值。

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