光合菌群发酵玉米秸秆水解液产氢

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°C。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菌群产氢有促进作用。

Hydrogen production from the hydrolysate of corn stalk by photosynthetic bacteria group

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 optimum 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 °C, respectively. Three hydrolyzate detoxification methods were compared and the method of calcium hydroxide obtained the optimal detoxification effect. NH4+ played a stimulatory role to the hydrogen production within certain concentration.