吹糠灰及剩余污泥协同白酒丢糟快速共堆肥工艺研究

Study on Rapid and High-quality Co-composting Technology for Multi-solid Waste in Baijiu Production

共堆肥方法可以同时处理两种或两种以上的有机废弃物,综合利用不同废弃物的特性,能够提高堆肥的速率和质量。为了提高传统白酒丢糟堆肥的效率,探究了一种白酒酿造多固废快速高质共堆肥处理新工艺。根据前期试验结果,将丢糟堆肥设计为对照组(C),多固废(丢糟、吹糠灰及剩余污泥)共堆肥设计为试验组(T),进行了为期30天的试验。结果表明,T组相对于组C,堆肥最高温度提升率为39.99%,高温期维持时间增加了2天,从pH值的变化可以判断T组提前进入硝化反应,有机质降解率提高了5.06%,总氮、总磷、总钾和总养分富集率分别提高了7.87%、10.8%、10.31%和15.26%。此外,T组的腐熟时间低于18天,而C组直到堆肥结束也未符合腐熟标准,故新工艺有效地提升了堆肥的速率和质量。

The co-composting method can process two or more organic wastes at the same time,comprehensively utilize the characteristics of different wastes,and can improve the compost rate and quality.In order to improve the efficiency of traditional Baijiu compost composting,a new process is explored,which is for rapid and high-quality co-composting of multi-solid wastes from Baijiu production.Based on the results of previous experiments,the discarded compost is designed as the control group C,and the multi-solid waste(Baijiu s waste spent grains,bran ash and the residual sludge)is composted as the test group T for a 30-day test.The results shows that compared with group C,the maximum compost temperature increase rate of group T is 39.99%,and the duration of the high temperature period increased by 2 days.According to the change of pH value,it can be concluded that group T enters nitration ahead of time,and the organic matter degradation rate increased by 5.06%.Total nitrogen,total phosphorus,total potassium and total nutrient enrichment rates increased by 7.87%,10.8%,10.31%,and 15.26%,respectively.In addition,the maturation time of group T is less than 18 days,and that of group C does not meet the maturation standard until the end of composting,so the new process effectively improves the rate and quality of composting.