不同来源污泥对稻草发酵产氢影响的研究  

Influence of different digested sludge on bio-hydrogen production from wheat straw by fermentation

作　　者：周俊虎[1] 戚峰[1] 程军[1] 谢斌飞[1] 刘建忠[1] 岑可法[1] 

机构地区：[1]浙江大学能源清洁利用国家重点实验室,浙江杭州310027

出　　处：《浙江大学学报（工学版）》2007年第5期761-764,822,共5页Journal of Zhejiang University：Engineering Science

基　　金：国家自然科学基金资助项目(50406022);国家"863"高技术研究发展计划资助项目(2006AA05Z122);全国优秀博士学位论文作者专项资金资助项目(200437);霍英东高等院校青年教师优选资助项目(104021);浙江省科技攻关计划资助项目(2006C33049)

摘　　要：讨论了不同来源的混合菌群、不同的接种方式以及单一菌种产气肠杆菌对稻草发酵产氢的影响.相对于混合菌群,单一纯菌产气肠肝菌在氢气产量上处于劣势.对于取自同一沼气池的厌氧活性污泥,经煮沸后扩大培养的混合菌群作为接种物,经过NaOH预处理后稻草的单位产氢量为91.5 mL/g,最高产氢速率为1.52 mL/(h.g);以直接扩大培养的污泥作为接种物,经过NaOH预处理后稻草的单位产氢量为62.5 mL/g,最高产氢速率为1.04mL/(h.g).对3种混合菌群均采用直接扩大培养的接种方法,其总产氢气量为:沼气池污泥(62.5 mL/g)<污水处理厂污泥(69.5 mL/g)<湖底污泥(80.5 mL/g).The bio-hydrogen productions from wheat straw by enterobacter aerogenes and different natural mixed culture bacteria from different sludge were studied. The bio-hydrogen production from wheat straw by enterobacter aerogenes was lower than those by mixed bacteria. Different inoculation methods also affect the bio-hydrogen production from straw. With the sludge of biogas digester as inoculum and straw （10 g） after pretreatment as bottom material, the maximal production velocity and the total hydrogen volume were 1.52 mL/（h · g） and 91.5 mL/g. In the case of mixed bacteria from the same sludge which being boiled as inoculum, the maximal production velocity and the total hydrogen volume were 1.04 mL/（h · g） and 62.5 mL/g. For rice straw （10 g）, the bio-hydrogen productions by mixed bacteria from sludge of biogas di- gester, sewage treatment plant and West Lake were respectively 62.5, 69.5 and 805 mL/g.

关 键 词：稻草 厌氧发酵 产氢 混合菌群 

分 类 号：TK6[动力工程及工程热物理—生物能]