城市垃圾堆肥必须堆腐才能农用,判断确切的堆腐期限不仅有利于垃圾堆肥堆腐周期的缩短,做到及时处理和应用,并且可以增加堆腐设施的利用率,减少投资,为此是一项很重要的研究。因我国城市生活垃圾混杂,煤炉灰的比例很高,有机部分往往不到30%,制定腐熟指标较为困难,本研究的目的,即在于寻求判断最佳堆腐期限的方法,并尽可能对垃圾堆肥的规格标准提出要求。试验应用上海市环卫局研究设计所提供的自然通风和机械通风的发酵仓内的不同发酵期的垃圾堆肥,进行生物和化学指标的检测,根据测定结果进行最终的判断。 (一)垃圾堆肥肥样的选择 Composting of municipal solid waste must be piled up for agricultural purposes. Judging the exact period of compost is not only beneficial to the shortening of the composting cycle, but also to timely treatment and application. It can also increase the utilization rate of the composting facilities and reduce the investment. A very important study. Due to the mixed municipal solid waste in China, the proportion of coal ash is very high, the organic fraction is often less than 30%, and it is more difficult to make the maturity index. The purpose of this study is to find a way to determine the optimal pile age, Garbage compost specifications are required. The experiment uses the bio-and chemical indexes of waste composting in different fermentation stages in natural ventilation and mechanical ventilation in the fermentation chamber provided by Shanghai Environmental Protection Bureau Research and Design Institute, and makes the final judgment based on the measurement results. (A) the choice of garbage composting