酸碱预处理对芦蒿秸秆厌氧发酵的影响  

Effect of acid and alkali pretreatment on anaerobic fermentation of artemisia selengensis straw

作　　者：谢欣欣[1,2] 周俊[1,2] 吴美容[1,2] 雍晓雨[1,2] 王舒雅[1,2] 郑涛[1,2] 

机构地区：[1]南京工业大学生物与制药工程学院,江苏南京211816 [2]南京工业大学生物能源研究所,江苏南京211816

出　　处：《化工学报》2014年第5期1883-1887,共5页CIESC Journal

基　　金：国家重点基础研究发展计划项目(2013CB733504);国家自然科学基金项目(21307058);江苏省青年科学基金项目(BK20130931);江苏农业自主创新项目(CX(13)3045)~~

摘　　要：通过对芦蒿秸秆进行酸、碱预处理和厌氧发酵制沼气实验,比较不同的预处理方法对芦蒿秸秆产气性能的影响。结果表明,与对照组相比,碱处理能较好地改善秸秆的产气性能,其中2%NaOH处理效果最好,发酵初期VFA含量高达4882.34 mg·L?1,比对照组提高了705.21%,单位TS固体产气量为288.42 ml·g?1,较对照组提高了17.08%,甲烷含量最高可达61.14%。In order to compare the effects of different pretreatment methods on gas production performance of artemisia selengensis straw, the straw was pretreated with acid or alkali of different concentrations before anaerobic digestion. Alkali pretreatment could effectively improve the performance of biogas production comparing with the control group, and the 2% NaOH pretreatment was the best. VFA concentration could be up to 4882.34 mg·L^-1 at the early stage of anaerobic fermentation in the alkali pretreatment system, which was 705.21% higher than the control group. The gas yield of unit total solid （TS） was 288.42 ml＆#183;g-1in the alkali pretreatment system, which was 17.08% higher than control group, and methane content reached 61.14%.

关 键 词：芦蒿秸秆 酸预处理 碱预处理 厌氧发酵 甲烷 

分 类 号：X712[环境科学与工程—环境工程]