将醋渣与一定量的油菜籽粕混合后进行为期56 d的堆肥发酵。研究结果表明:堆体高温持续时间达到13d,最高温度可以达到64.2℃;堆肥过程中pH值呈现先升后降的趋势,水分含量持续降低;堆肥后物料的总有机碳含量较堆肥前降低32.3%,粗纤维素含量降低28.1%,全氮含量增加10.1%,C/N降低到15.3;堆肥结束时种子发芽率指数达到81%,达到无害化的温度要求。

The composting for vinegar dregs mixed with rapeseed meal was carried out by static forced ventilation. During the 56 days of composting,the stacking temperature,moisture content,pH,germination seed index and the other factors were surveyed and analyzed. The results showed that the duration of temperature exceeding 50 ℃maintains 13 days,and the temperature rose to 64. 2 ℃ after 19 days. The compost pH value increased first and then decreased,while the total moisture content decreased in the compost process. Compared with the beginning of composting period,when fermentation was implemented,the total organic carbon contents decreased 32. 3%,crude fibre decreased 28. 1%,the concentration of total nitrogen increased 10. 1%,and the C /N decreased from 25. 1 to 15. 3,respectively. The seed germination index was over 80% after 56 d which meet the nontoxic requirements of compost.Therefore,the composting is an effective way for comprehensive utilization of waste of vinegar production.