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低温沼气干发酵高效产甲烷复合菌系的选育

China Biogas(2012)

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Abstract
将7个不同低温厌氧环境样品接种到TS 30%的发酵底物中,在19℃±0.5℃低温条件下驯化,筛选出三组适宜干发酵的低温产甲烷复合菌系。甲烷含量为65.35%,63.75%,65.80%,总产气量为15840 mL,14910 mL,16650 mL,甲烷含量达到50%以上时的累积产气量分别占总产气量的76.45%,73.84%,84.93%,池容产气率为0.87 L.L-1d-1,0.9 L.L-1d-1,0.93 L.L-1d-1。三组复合菌系使低温沼气干发酵的启动期提前、池容产气率和甲烷纯度提高。
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Key words
volumetric gas production rate,methane content,the methanogenic microbes,low temperature acclimation,biogas dry fermentation
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