光合菌群发酵玉米秸秆水解液产氢

摘要

以玉米秸秆水解液作为产氢底物,研究光合菌群产氢性能.考察了硫酸浓度、固液比、水解时间、水解温度等秸秆水解条件对产氢的影响,确定了最佳水解条件,并对不同脱毒方法进行了对比研究.结果表明,最佳的水解条件为硫酸浓度1%,固液比1∶12,水解时间0.5 h,水解温度为110℃.采用Ca(OH)2脱毒方法的产氢效果要优于其他2种脱毒方法:NH4+在一定浓度范围内对该光合茵群产氢有促进作用.%Hydrogen production of photosynthetic bacteria group was studied using corn stalk hydrolyzate as hydrogen production substrate. The affects of sulfuric acid concentration, solid-liquid ratio,hydrolysis time and hydrolysis temperature on hydrogen production were investigated. The optinmm process conditions were as follows: the sulfuric acid concentration was 1％, the solid-liquid ratio was 1:12, the hydrolysis time was 0.5 h and the hydrolysis temperature was 110 ℃, respectively. Three hydrolyzate detoxification methods were compared and the method of calcium hydroxide obtained the optimal detoxification effect. NH4+ played a stimulator role to the hydrogen production within certain concentration.