不同调理剂对有机垃圾好氧堆肥效果的影响

EFFECT OF DIFFERENT AMENDMENTS ON AEROBIC COMPOST OF ORGANIC WASTE

分别以锯末、玉米芯、麦麸、稻壳和堆肥腐熟物作为调理剂,与水果、蔬菜垃圾进行好氧堆肥试验,分析了各处理堆肥过程中的温度、含水率、有机质、p H值、EC、全氮和GI的变化情况。结果表明:各处理组的含水率和有机质总体上呈下降的规律,且堆肥结束时EC都在适宜范围内,堆肥腐熟物处理的有机质下降最高,且全氮含量有所升高;其中,麦麸处理的堆肥升温最快,高温持续时间最长,种子发芽率也最高。综合来看,在本研究范围内,麦麸为水果蔬菜有机垃圾堆肥的最适宜调理剂。

In this paper,fruit and vegetable waste was co-composted with sawdust,corncob,wheat bran,rice husk and matured compost. The changes of temperature,moisture content,organic matter,electrical conductivity（ EC）,p H value,total nitrogen（ TN） and germination index（ GI） with time during the composting process were investigated. The results showed that moisture content and organic matter of all treatments gradually decreased with time,and the final EC values were within the limits of the bounds in all treatments. Mixture with matured compost achieved the fastest organic matter loss and the total nitrogen content of final compost increased; mixture with wheat bran achieved the highest temperature, longest hightemperature period and the highest germination index. The results of this study suggest that wheat bran was the optimal amendment for fruit and vegetable waste compost.