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溫度對蔬菜廢棄物沼氣發(fā)酵產(chǎn)氣特性的影
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of Temperature on Anaerobic Fermentation for Biogas Production from Cabbage Leaves
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    摘要:

    運用實驗室自行設計的小型沼氣發(fā)酵裝置，以廢棄的甘藍菜葉作為發(fā)酵原料，研究了溫度對蔬菜廢棄物沼氣發(fā)酵產(chǎn)氣特性的影響。結(jié)果表明，中溫條件(（35±1)℃）試驗組的揮發(fā)酸質(zhì)量濃度、氨態(tài)氮質(zhì)量濃度以及pH值都在正常范圍內(nèi)，且優(yōu)于高溫(（55±1)℃）和室溫發(fā)酵試驗組，可保證系統(tǒng)的順利運行。產(chǎn)氣特性研究表明：中溫條件的總產(chǎn)氣量比高溫條件總產(chǎn)氣量高42.5%，最高甲烷含量比高溫條件和室溫條件下分別高7.6%和19.1%。因此，中溫條件適于蔬菜廢棄物厭氧發(fā)酵產(chǎn)氣。

    Abstract:

    The effects of temperature on anaerobic digestion for biogas production were investigated. The tests were carried out in self-made anaerobic fermentation devices, with cabbage leaves as raw materials. Results showed that the value of VFA, NH+4-N and pH values at mesophilic fermentation ((35±1)℃) was in normal range superior to thermophilic ((55±1)℃) and room temperature. The total yield of biogas at mesophilic fermentation was 42.5% higher than thermophilic fermentation. The CH4 content at mesophilic fermentation was 7.6% and 19.1% higher than thermophilic and room temperature fermentation, respectively. Therefore, mesophilic fermentation condition is considered suitable for biogas production from cabbage leaves.

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劉榮厚,王遠遠,孫辰.溫度對蔬菜廢棄物沼氣發(fā)酵產(chǎn)氣特性的影[J].農(nóng)業(yè)機械學報,2009,40(9):116-121. of Temperature on Anaerobic Fermentation for Biogas Production from Cabbage Leaves[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(9):116-121.

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