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牛糞高溫干式厭氧發(fā)酵產(chǎn)沼氣性能試驗(yàn)
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國(guó)際科技合作項(xiàng)目（2010DFB60680）


Dry Thermophilic Anaerobic Digestion Performance Test of Dairy Manure for Biogas Producing
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    摘要:

    研究了牛糞原料高溫（55℃）干式厭氧發(fā)酵過(guò)程中產(chǎn)氣效果和物料參數(shù)的變化規(guī)律,。結(jié)果表明：接種比例3∶10、8r/min連續(xù)攪拌條件下,，物料TS（總固體）產(chǎn)氣率為311mL/g,，甲烷平均體積分?jǐn)?shù)為57.1%，平均容積產(chǎn)氣率為2.73L/(L·d),；容積產(chǎn)氣率在第3天達(dá)到最高,，為5.23L/(L·d)；反應(yīng)初期揮發(fā)性脂肪酸迅速積累,，1d后即達(dá)到峰值,，隨后迅速減少；在反應(yīng)初期pH值略有下降,，隨后逐漸升高,；氨氮質(zhì)量濃度和總堿度則一直呈上升趨勢(shì)。

    Abstract:

    Dry anaerobic digestion of dairy manure under thermophilic temperature (55℃) for biogas producing was investigated, including the effect of different inoculation ratios on biogas producing, and the changes of biogas and methane producing, pH value, concentrations of ammonia, volatile fatty acid and total alkalinity during digestion. Inoculated dairy manure (the ratio of inoculums and dairy manure was 3∶10) was anaerobic digested 15 days under continuous mechanized mixing (8r/min), and total solid biogas production, average daily biogas production, the maximum daily production and the average content of methane reached to 311mL/g, 2.73L/(L·d), 5.23L/(L·d) (3rd day) and 57.1%, respectively.

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李道義,李樹君,劉天舒,黃希國(guó),吳麗麗,景全榮.牛糞高溫干式厭氧發(fā)酵產(chǎn)沼氣性能試驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2013,44(3):110-113,141. Li Daoyi, Li Shujun, Liu Tianshu, Huang Xiguo, Wu Lili, Jing Quanrong. Dry Thermophilic Anaerobic Digestion Performance Test of Dairy Manure for Biogas Producing[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(3):110-113,141.

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  • 在線發(fā)布日期: 2013-02-25
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