水稻秸秆厌氧发酵制氢技术研究  

Hydrogen Production with Rice Straw by Anaerobic Fermentation

作　　者：顾顺[1,2] 马海乐[1,2] 王振斌[1,2] 刘瑞光[1,2] Ruihong Zhang 

机构地区：[1]江苏大学食品与生物工程学院,江苏镇江212013 [2]美国加州大学-中国江苏大学生物质能联合研究中心,江苏镇江212013 [3]Department of Biological ＆ Agricultural Engineering, University of California-Davis, Davis, CA 95616, USA

出　　处：《环境科学与技术》2010年第1期65-68,共4页Environmental Science & Technology

基　　金：镇江市国际合作项目(GJ2007010,GJ2008010);镇江市工业攻关项目(GY2007002);江苏大学学生科研课题立项(07A071)

摘　　要：以水稻秸秆为研究原料,用牛粪为接种物,采用稀硫酸预处理方法来提高秸秆纤维素的降解率,从而提高其发酵产氢的能力,并且进一步考察了发酵初始pH、发酵温度、牛粪与秸秆的质量比和底物浓度四个条件对发酵产氢的影响。实验结果表明:在接种100g/L牛粪的条件下,以1.8%的硫酸加热30min预处理秸秆产氢效果最佳,为19.64mL/gTS,是未经过预处理的秸秆产氢量(0.1mL/gTS)的196倍,粗纤维含量由未处理前的36.7%下降到酸处理后的31.5%。在pH8.0、温度为37℃、牛粪与秸秆质量比为2.5∶1、底物浓度为50g/L时的产氢效果最好,累计产氢量为29.14mL/gTS,此时生物气中没有检测到甲烷气体,氢气浓度达到63.88%。H2SO4 solution was used in chemical pretreatment of rice straw for improving the degradation rate and hydrogen production in anaerobic fermentation with cow dung as inoculums. The effects of initial pH, temperature, ratio of cow dung and straw and substrate concentration on hydrogen production were also studied. Results showed that under the same inoculation of cow dung 100g/L, heat pretreatment of 1.8% H2SO4 for 30min had remarkable effect on hydrogen production, with 19.64mL/g TS, which was 196 times of those untreated straw with hydrogen production of 0.1mL/g TS, and crude fiber content decreased from 36.7% to 31.5%. The maximum hydrogen productivity was 29.14mL/g TS under the conditions of pH 8.0, temperature 37℃, ratio of cow dung and straw 2.5 ： 1 and substrate concentration 50g/L. There is no methane detected and hydrogen concentration reached 63.88%.

关 键 词：秸秆 牛粪 酸处理 厌氧发酵 制氢 

分 类 号：X382[环境科学与工程—环境工程] X703