废弃大白菜厌氧消化产甲烷的实验研究

Research on Methane Production of Anaerobic Digestion of Waste Cabbage

以废弃大白菜为原料,使用全自动厌氧消化产甲烷潜力测量仪测定了其在30℃条件下的甲烷产量.厌氧消化反应系统为30g新鲜大白菜浆和170g接种污泥.结果表明,经过40d的发酵周期,大白菜的TS产甲烷潜力为291NmL/g TS,VS产甲烷潜力为331NmL/g VS.分析厌氧消化过程中产甲烷的规律,证明厌氧消化可以有效处理废弃大白菜,使其转化为甲烷.

With waste Chinese cabbage as raw material,the amount of methane production at 30 ℃ constant temperature conditions was measured using the anaerobic digestion methanogenic po- tential automatic measuring instrument. Anaerobic digestion system was made up with 30 g fresh cabbage pulp and 170 g sludge inoculation. The results showed that after the fermentation period of 40 d, as calculated,TS methane production rate of cabbage was 291 NmL/g TS, VS methane production was 331 NmL/g VS. Analyzed the anaerobic digestion process,anaerobic digestion is proved as an effective disposal to deal with waste cabbage. So it can make the waste Chinese cab- bage into useful methane resources.