玉米秸麦秸中高温沼气发酵产气潜力及特性的研究  

Biogas Potential and Characteristics of Medium or High Temperature Biogas Fermentation with Corn and Wheat Straw

作　　者：孙丽丽[1] 符征鸽[1] 

机构地区：[1]农业部沼气科学研究所,四川成都610041

出　　处：《中国沼气》2008年第6期13-16,共4页China Biogas

摘　　要：以玉米秸和麦秸为发酵原料,采用批量发酵工艺,在中高温下进行玉米秸和麦秸厌氧发酵产沼气潜力及特性的试验研究。结果表明,30℃时玉米秸和麦秸的TS产沼气潜力分别为446.6 mL.g-1和449.8 mL.g-1;35℃时分别为492.4 mL.g-1和499.0 mL.g-1;40℃时分别为515.3 mL.g-1和497.5 mL.g-1;53℃时分别为531.5 mL.g-1和535.0 mL.g-1。说明玉米秸和麦秸作为发酵原料有较高的产沼气潜力。由批量发酵数据推导得到这两种秸秆在理想状态下高温连续发酵最高池容产气率可达3.0 m3.m-3d-1,中温发酵可达2.0 m3.m-3d-1左右。Corn and wheat straw were used as suhstrats, batch fermentation was adopted to study their biogas potential and characteristics at medium or high temperature. The results are as follows ： the unit TS biogas yield of corn and wheat straw at 30℃ are 446.6 mmL·g^-1 and 449.8 mL·g^-1 respectively; 492.4 mL·g^-1 and 499.0 mL·g^-1 respectively at 35℃ ; 515.3 mL·g^-1 and 497.5 mL·g^-1 at 40℃ ; and 531.5 mL·g^-1 and 535.0 mL·g^-1 at 53℃. The results showed that corn and wheat straw have high biogas production potential. Further theoretical analysis indicated that in engineering application,the volumetric gas production rate of the two straw under high temperature could reach 3.0m^3·m^-3 d^-1, and 2.0m^3·m^-3d^-1 under medium temperature.

关 键 词：玉米秸 麦秸 中高温 沼气发酵 

分 类 号：S216.4[农业科学—农业机械化工程]