农村有机生活垃圾和秸秆快速好氧发酵技术参数研究

Optimization of aerobic fermentation parameters for rural organic living waste and stalk

近年来,中国农村有机生活垃圾和农作物秸秆废弃资源引发的环境问题日益严重,在现有农业废弃物资源化利用技术中,好氧发酵堆肥技术由于运行成本低、操作简便成为农村有机生活垃圾和秸秆的首选处理技术。该文通过正交试验方法分析通风量、含水率和碳氮比3因素对快速好氧发酵效果的影响。结果表明:通风量是首要影响因素,其次是含水率和碳氮比;适宜的通风量参数为0.148～0.173m3/d,含水率为60%,C/N为25︰1。本研究将为开展北方寒冷地区冬季好氧发酵设施增温保温技术研究提供理论依据。

There is a huge amount of rural organic living waste and stalk every year in China. Among of many kinds of waste treatment technologies, only the aerobic fermentation treatment is the most suitable for rural area with low running cost and simple operation. The research analyzed the optimized results of three main factors of ventilation, moisture content and ratio of carbon to nitrogen by using orthogonal experiment method. Results show that the chief effect factor is ventilation, then the moisture content, the last is the ratio of carbon to nitrogen; the suitable parameters are ventilation 0.148-0.173 m^3/d, moisture content 60%, ratio of carbon to nitrogen 25 ： 1. The research results provide theoretical references for further study on persist-running of aerobic fermentation in winter in the Northern China.