摘要
以户用沼气罐为基础,以牛粪为发酵底物,进行中温发酵,结果表明:连续加温,温度最高可升高到45℃,在加热到35℃后,温度一直维持在30℃左右;户用沼气罐持续产气42 d,累计产沼气8.7 m3,日平均产气率为0.26 m3.d-1,产气高峰时最高日产气率0.5 m3.d-1;一次投料后罐体发酵进入30 d后产气量逐渐降低,说明原料中可分解利用的有机质含量减少,如需维持产气高峰应在发酵30 d前适时补充发酵原料。
The text is based on the household biogas digesters,in cow dung for anaerobic fermentation on middle temperature. It is showed that continue warming up the highest temperature could up to 45℃ ,when temperature up to 35℃ ,the tempera ture keep 30℃ all the time;household biogas digesters produce biogas in ,12 days,the whole measured biogas production was 8. 7 m^3 ,the average measured biogas production was 0. 26 m^3 · d ^-1, the highest biogas production was 0. 5 m^3·d^-1 ; after 30 days the biogas production begin reducing,it＇s to say,the organic content could be used in the material was reduced,if keep ing the biogas production.you must supply the cow dung before 30 days.
出处
《黑龙江农业科学》
2009年第6期125-126,共2页
Heilongjiang Agricultural Sciences
基金
哈尔滨市科技创新人才研究专项资金项目(RC2009QN008006)
黑龙江省农业科学院创新工程资助项目
关键词
沼气罐
寒地
发酵工艺
biogas digesters
high-cold region
fermentation system
作者简介
第一作者简介：裴占江（1980），男，黑龙江省人，硕士，研究实习员．从事可再生能源研究。E-mail：neaupzj@163．com。
通讯作者：刘杰，E-mail：liujie1677@126．com。
