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对以玉米秸秆和牛粪混合物为发酵原料制备高氢沼气的工艺技术进行研究.提出温度、初始Ph值等因素与产气量及其氢含量之间的关系.结果表明:发酵周期内的H2浓度在初始4 d内呈先升后降的趋势.当实验系统发酵温度为35℃时,累积产气量为10.6 L,其中H2浓度最高可达4.1%;当实验系统初始Ph值为7.5时,累积产气量为14.1 L,其中H2浓度最高可达4.4%.“,”The research was focused on the production technology of hydrogen-rich biogas using mixture of corn stalks and cow dung as fermentation materials,and the relationship between temperature,initial Ph value and biogas yield,its hydrogen content was investigated. The results showed that the hydrogen concentration is firstly raised and then decreased in the first 4 days of fermentation period.When the fermentative temperature is 35℃in experiment system, the cumulative biogas yield is 10.6 L,the hydrogen concentration can reach up to 4.1%.When the initial Ph value is 7.5 in experiment system and the cumulative biogas yield is 14.1 L,the hydrogen concentration can reach up to 4.4%.