摘要
针对秸秆类废弃物厌氧发酵的速度慢以及常规的氨化预处理后物料氨氮含量高影响后续厌氧发酵的问题,提出鸡粪和稻秆混合物氨化预处理工艺,并在35℃条件下,研究经此氨化预处理工艺处理后物料的干式厌氧发酵效果及降解情况。结果表明:以鸡粪为氮源和营养源可取得较好的秸秆预处理效果,预处理后物料的挥发性脂肪酸总量及成分均优于未处理组;经氨化预处理后物料的干式厌氧发酵产气效果优于未处理组,总固体(TS)和挥发性固体(VS)去除率较高,发酵后剩余物的挥发性脂肪酸总量及成分均优于未处理组,产气潜力更大。
Ammoniation pretreatment technology of chicken manure and rice straw was put forward for the slow speed of anaerobic fermentation of straw waste and for the subsequent anaerobic fermentation influenced by materials still having high levels of ammonia nitrogen after conventional ammoniation pretreatment. The effect and degradation of dry anaerobic digestion of materials processed by the technology at 35 ℃ were studied. The results indicated that a better straw pretreatment effect could be achieved with chicken manure being nitrogen source and nutrient source ; the VFA amounts and components of materials processed by straw pretreatment were all better than those in the untreated group ; the biogas produced in dry anaerobic fermentation of materials processed by ammoniation pretreatment was better than those in the untreated group; the removal rate of TS and VS in the materials processed by ammoniation pretreatment was high ; the VFA amounts and components, and the biogas production potential of leftovers after fermentation were all better and greater than those in the untreated group.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2014年第3期421-425,共5页
Acta Energiae Solaris Sinica
基金
国家"十二五"科技支撑计划(2011BAD15B04)
黑龙江省青年科学基金(QC2011C083)
黑龙江省教育厅科学技术研究项目(12511045
12511048)
黑龙江省博士后科研启动基金(LBH-Q10148)
关键词
稻秆
鸡粪
氨化预处理
干式厌氧发酵
rice straw
chicken manure
ammoniation pretreatment
dry anaerobic digestion
