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稻草與牛糞混合連續(xù)厭氧消化制備生物燃氣研究
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“十二五”國家科技支撐計劃資助項目（2011BAD15B02）


Continuous Anaerobic Co-digestion of Rice Straw and Cow Manure for Biogas Production
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    摘要:

    以揮發(fā)性固體比1∶1的稻草與牛糞為混合原料,，采用40L有機玻璃反應器進行連續(xù)厭氧消化,，考察不同有機負荷率（OLR）3~12kg/(m3?d)及溫度對厭氧消化性能及穩(wěn)定性的影響,。結果表明，高溫消化在整個OLR范圍內,，池容產(chǎn)氣率逐漸增加，最高達到5.26m3/(m3?d),，平均揮發(fā)性固體產(chǎn)氣率在OLR為3.6kg/(m3?d)時達到最大值489.6L/kg,；中溫消化在OLR為12kg/(m3?d)時出現(xiàn)嚴重的VFAs抑制，在無揮發(fā)性脂肪酸抑制的OLR范圍（3~8kg/(m3?d)）內,，池容產(chǎn)氣率逐漸增加,，最高達到2.57m3/(m3?d)，平均揮發(fā)性固體產(chǎn)氣率在OLR為3.6kg/(m3?d)時達到最大值440.0L/kg,；當OLR升高到8kg/(m3?d)時,，中溫和高溫發(fā)酵系統(tǒng)均出現(xiàn)了嚴重的污泥膨脹。

    Abstract:

    Using rice straw and cow manure (volatile solid ration 1∶1) as materials, continuous anaerobic co-digestions were carried out to investigate the effects of organic loading rate (OLR) and temperature on stability and performance. The experimental results showed that, for thermophilic digestion, volumetric biogas production rate (VBPR) increased with increasing of OLR and the maximum VBPR was 5.26m3/(m3?d). The maximum average specific biogas production (SBP) of 489.6L/kg was obtained at OLR of 3.6kg/(m3?d).For mesophilic digestion, biogas production was seriously inhibited by volatile fatty acids (VFAs) at OLR of 12kg/(m3?d). During the OLR of 3~8kg/(m3?d),VBPR gradually increased with the maximum of 2.57m3/(m3?d). The maximum average SBP of 440.0L/kg was obtained at OLR of 3.6kg/(m3?d). When the OLR increased to 8kg/(m3?d), serious sludge expanding was observed both in thermophilic and mesophilic system.

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李東,葉景清,孫永明,甄峰,袁振宏.稻草與牛糞混合連續(xù)厭氧消化制備生物燃氣研究[J].農業(yè)機械學報,2013,44(1):101-105,100. Li Dong, Ye Jingqing, Sun Yongming, Zhen Feng, Yuan Zhenhong. Continuous Anaerobic Co-digestion of Rice Straw and Cow Manure for Biogas Production[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(1):101-105,100.

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  • 在線發(fā)布日期: 2012-12-31
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