摘要
研究 3种不同配方的酶制剂对猪粪沼气发酵产气率的影响。配方 1和配方 2的沼气产量比对照分别提高2 6 81%和 13 75 ,配方 3则比对照降低 4 4 0 % ;从池容产气率看 ,配方 1和配方 2分别比对照提高 2 7 5 4 %和13 0 4 % ,配方 3比对照降低了 4 35 %。三种配方对原料TS和VS的利用率均有提高 ,TS利用率分别比对照提高8 6 9%、15 5 3%和 4 74 % ,VS利用率分别比对照提高 2 2 2 3%、4 7 0 5 %和 9 95 %。以上结果表明 ,糖化酶有利于提高猪粪发酵的沼气产量 ,较高蛋白酶活相反降低沼气产量。
The influence of three enzyme agents with different compositions on biogas productivity of pig dung digestion was investigated.The resutls indicated that biogas production of experimental group 1 and group 2 was 26.81% and 13.75% respectively higher than that of the control group,and the productivity of experimental group 3 decreased by 4.40%.The three agents can all improve the TS and VS degradative rate.According to the experiment,the TS degradative rate can be increased by 8.69%,15.53% and 4.74% and that of VS by 22.23% ,47.05% and 9.95% in contrast to those of the control group.The results indicate that amylase can help increase biogas yield,while higher enzyme activity of protease blocks the biogas production.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2002年第5期674-677,共4页
Acta Energiae Solaris Sinica
基金
云南省应用基础研究基金资助 (1999E0 0 5 0M )
关键词
水解酶
猪粪
沼气
发酵
产气率
hydrolases
pig dung
anaerobic digestion
degradative rate of raw material
biogas productivity increase.
