北方玉米秸秆与猪粪混合厌氧发酵条件  

Anaerobic fermentation conditions of mixed corn straw and pig excreta in North China

作　　者：庞小平[1] 牛明芬[1] 王赛月[1] 刘知远[1] 

机构地区：[1]沈阳建筑大学市政与环境工程学院,沈阳110168

出　　处：《生态学杂志》2011年第1期126-130,共5页Chinese Journal of Ecology

基　　金：沈阳市科学技术计划项目(1091116-3-00);国家重大科技专项(2008ZX07208-007-02)资助

摘　　要：为了提高中国北方地区秸秆厌氧发酵产气效果,将秸秆与猪粪混合来进行厌氧发酵研究。在接种物量为20%、总固体发酵物浓度控制为10%的条件下,分别研究了温度(25℃、35℃)、玉米秸秆与猪粪质量比(1∶1、1.5∶1、2∶1)、秸秆粒径(<1cm、1～3cm、5～10cm)对玉米秸秆与猪粪混合厌氧发酵产气效果的影响。结果表明:在温度35℃下,玉米秸秆与猪粪质量比为1.5∶1、秸秆粒径在1～3cm时发酵的产气效果最好,此参数可作为北方农村玉米秸秆与猪粪厌氧发酵推荐参数使用。In order to promote the biogas generation during anaerobic Iermentatlon ot straw m North China, an anaerobic fermentation experiment with mixed corn straw and pig excreta was conducted. The total concentration of fermenting materials was controlled as 10%, and the quan- tity of inoculum was 20%. The biogas production was measured under the conditions of temperature 25℃ and 35℃, straw granularity 〈1 cm, 1-3 cm, and 5-10 cm, and mass ratio of corn straw to pig excreta 1 ： 1, 1.5 ： 1, 2 ： 1. The results showed that the daily and cumulative biogas productions were the highest under conditions of temperature 35℃, straw granularity 1-3 cm, and mass ratio of corn straw to pig excreta 1.5 ： 1. These conditions could be used as the recommended parameters of anaerobic fermentation of mixed corn straw and pig excreta in North China countryside.

关 键 词：温度 粒径 厌氧发酵 产气量 

分 类 号：X71[环境科学与工程—环境工程]