中国沼气2025，Vol.43Issue(5)：37-43,7.DOI:10.20022/j.cnki.1000-1166.2025050037
添加酒精木薯渣对水稻秸秆湿贮存品质及产甲烷潜力的影响
Effects of Alcohol Cassava Residue on Wet Storage Quality and Methane Production Potential of Rice Straw
摘要
Abstract
Rice straw and alcohol cassava residue were mixed for wet storage according to different carbon-nitrogen ratios(C/N)ratios,and the effects of different C/N ratios(20∶1,25∶1,30∶1)on the wet storage quality of raw materials and the subsequent methane production potential were analyzed.After 30 days of wet storage,compared with the other treatment groups,the C/N 20 group had the lowest pH value(3.99±0.05),the highest lactic acid yield of(50.72±0.55)g·kg-1 DM,and the lowest dry matter loss rate of 4.27％.Compared with the storage group with only rice straw,the relative a-bundance of acid-producing bacteria such as Lactobacillus,Bacillus and Geobacillus in the mixed storage group increased by more than 95％.Compared with the unstored raw materials,the cumulative methane yield of the C/N 20 and C/N 25 groups increased by 4.27％and 3.23％,respectively,and decreased by 5.67％in the C/N 30 group after 30 days of wet storage.Mixing alcohol cassava residue and rice straw with a 20～25∶1 C/N ratio not only improved the storage quality,but also made the microbial colony structure more stable,which was more conducive to improving the subsequent methane yield.It provides a technical basis for the storage link of biogas project using lignocellulose as raw material.关键词
水稻秸秆/酒精木薯渣/碳氮比/湿贮存/厌氧发酵Key words
rice straw/alcohol cassava residue/C/N ratio/wet storage/anaerobic digestion分类
资源环境引用本文复制引用
徐晓雨,赖晓雨,沈佳丽,李锐,崔宪..添加酒精木薯渣对水稻秸秆湿贮存品质及产甲烷潜力的影响[J].中国沼气,2025,43(5):37-43,7.基金项目
江西省自然科学基金项目(青年)(20232BAB215004) （青年）
