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菇渣干濕厭氧發(fā)酵對(duì)比與影響因素分析
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公益性行業(yè)(農(nóng)業(yè))科研專項(xiàng)經(jīng)費(fèi)資助項(xiàng)目(20130399)和中央高?;究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金資助項(xiàng)目(2013PY053,、2011PY007)


Comparison of Wet and Dry Anaerobic Fermentation and Influencing Factors Analysis for Mushroom Residue
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    摘要:

    為提高蘑菇栽培廢料菇渣的利用效率,,以菇渣為發(fā)酵原料,,進(jìn)行了總固體質(zhì)量分?jǐn)?shù)(TS)為7%的濕式發(fā)酵和TS范圍為16.5%~23.6%的干式發(fā)酵的厭氧消化實(shí)驗(yàn),。結(jié)果表明:濕發(fā)酵中當(dāng)菇渣與菇腳質(zhì)量比例為1∶0和2∶1時(shí)產(chǎn)氣效果最佳,,產(chǎn)氣率分別為301.25 mL/g和300.60 mL/g;在35℃的中溫干發(fā)酵中當(dāng)接種率低于30%,,TS高于19.1%時(shí),,反應(yīng)不能正常啟動(dòng),;在TS為19.1%條件下,,當(dāng)采取55℃高溫發(fā)酵時(shí)可實(shí)現(xiàn)順利啟動(dòng),產(chǎn)氣率最高,,為328.90 mL/g,,45℃時(shí)產(chǎn)氣率為112.40 mL/g,。實(shí)驗(yàn)結(jié)果說(shuō)明菇渣具有高產(chǎn)氣潛力,干發(fā)酵時(shí)55℃高溫發(fā)酵可避免啟動(dòng)酸化,,且產(chǎn)氣效率優(yōu)于濕發(fā)酵,。

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    In order to improve the utilization efficiency of mushroom cultivation waste, mushroom residue was used as raw material for fermentation to conduct anaerobic digestion experiments with wet fermentation of 7% TS mass fraction and dry fermentation of 16.5%~23.6% TS mass fraction. The results showed that the experimental groups at the ratio of 1∶0 and 2∶1 could gain better effect of gas production in wet fermentation, and the gas production rate were 301.25 mL/g and 300.60 mL/g respectively. The dry fermentation reaction could not be started at medium temperature of 35℃, the rate of inoculation less than 30% and the TS mass fraction higher than 19.1%. Under the TS mass fraction of 19.1% condition, the reaction could be started successfully and the highest gas production rate of 328.90 mL/g was got with high temperature of 55℃. The gas production rate was 112.40 mL/g at temperature of 45℃. The experimental results showed that mushroom residue had a high potential. The high temperature fermentation of 55℃ could avoid the acidification at dry fermentation, and the gas production rate was better than the rate of wet fermentation.

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艾平,王殿龍,辛婭,竇子朋,張衍林.菇渣干濕厭氧發(fā)酵對(duì)比與影響因素分析[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2013,44(Supp2):130-135. Ai Ping, Wang Dianlong, Xin Ya, Dou Zipeng, Zhang Yanlin. Comparison of Wet and Dry Anaerobic Fermentation and Influencing Factors Analysis for Mushroom Residue[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(Supp2):130-135.

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  • 在線發(fā)布日期: 2013-10-21
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