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菌種添加量對生物預(yù)處理小麥秸稈厭氧發(fā)酵的影響
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上海市重大科技攻關(guān)資助項目（08DZ1900405）;公益性行業(yè)（農(nóng)業(yè)）科研專項經(jīng)費資助項目（201003063—09）


Effects of Supplement Dose of Microorganism in Biological Pretreatment of Wheat Straw on Its Characteristics of Anaerobic Digestion for Biogas Production
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    摘要:

    對小麥秸稈進行了氨—生物聯(lián)合預(yù)處理,，在實驗室自制的小型厭氧發(fā)酵裝置上,，對預(yù)處理后的小麥秸稈進行了厭氧發(fā)酵制取沼氣試驗，探討了氨—生物聯(lián)合預(yù)處理中，菌種的添加量對小麥秸稈厭氧發(fā)酵產(chǎn)沼氣的影響,。結(jié)果表明，在氨預(yù)處理尿素溶液質(zhì)量濃度為35g/L,，生物預(yù)處理pH值為4,黃孢原毛平革菌和里氏木霉的添加比例為1∶1（數(shù)量級為109）的條件下,，小麥秸稈厭氧發(fā)酵過程中沼氣總產(chǎn)氣量最大，為7968mL,，較空白組提高了23.11%,。發(fā)酵過程終了pH值、VFA和甲烷的變化均在正常的范圍內(nèi),甲烷最高體積分數(shù)為51.33%,，較空白組提高了6.01%,，整個發(fā)酵過程歷時23d。

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    Co-pretreatment of wheat straw by urea and microorganism was conducted. The effects of supplement dose of microorganism in biological pretreatment of wheat straw on its anaerobic digestion for biogas production were investigated by using a self-made anaerobic digestion device with pretreated wheat straw as raw materials. Results showed that the total yield of biogas reached the maximum of 7968mL, which was 23.11% higher than the control, when the urea concentration, pH value of biological pretreatment and ratio of Phanerochaete chrysosporium to Trichoderma reesei added into the wheat straw were 35g/L, 4, and 1∶1, respectively. The values of VFA, CH4 and pH value were located in normal range. The maximum CH4 content was 51.33%, which was 6.01% higher than that of control. The fermentation time was shortened to 23d during the whole experiment.

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劉榮厚,吳晉鍇,武麗娟.菌種添加量對生物預(yù)處理小麥秸稈厭氧發(fā)酵的影響[J].農(nóng)業(yè)機械學(xué)報,2012,43(11):147-151. Liu Ronghou, Wu Jinkai, Wu Lijuan. Effects of Supplement Dose of Microorganism in Biological Pretreatment of Wheat Straw on Its Characteristics of Anaerobic Digestion for Biogas Production[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(11):147-151.

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  • 在線發(fā)布日期: 2012-11-16
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