導(dǎo)氣措施與滲濾液回流方式對(duì)干發(fā)酵產(chǎn)沼氣影響中試.pdf

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1、2013年10月農(nóng)業(yè)機(jī)械學(xué)報(bào)第44卷增刊2doi:10．6041/j．issn．1000-1298．2013．S2．027*導(dǎo)氣措施與滲濾液回流方式對(duì)干發(fā)酵產(chǎn)沼氣影響中試121211杜靜朱德文錢(qián)玉婷陳永生陳廣銀常志州(1．江蘇省農(nóng)業(yè)廢棄物資源化工程技術(shù)研究中心，南京210014;2．農(nóng)業(yè)部南京農(nóng)業(yè)機(jī)械化研究所，南京210014)摘要:為了獲得有利于提高干發(fā)酵產(chǎn)氣效率的工程調(diào)控措施，以水稻秸稈和新鮮牛糞為原料，采用柔性頂膜車(chē)庫(kù)式干發(fā)酵裝置，在常溫(環(huán)境溫度22～36℃)和發(fā)酵干物質(zhì)質(zhì)量分?jǐn)?shù)16%條件下，研究導(dǎo)氣管與滲濾液回流方式對(duì)沼氣干發(fā)酵產(chǎn)氣效果的影

2、響。結(jié)果表明，通過(guò)在庫(kù)內(nèi)鋪設(shè)垂向、橫向?qū)夤芤约安捎脻B濾液回流調(diào)控措施，有助于提333高發(fā)酵物料的產(chǎn)氣效率，整個(gè)發(fā)酵周期(86d)試驗(yàn)庫(kù)平均容積產(chǎn)氣率達(dá)0.36m/(m·d)(原料產(chǎn)氣率達(dá)155m/t333(以TS計(jì)，下同))，明顯高于對(duì)照庫(kù)(0.28m/(m·d)，原料產(chǎn)氣率120m/t);從發(fā)酵物料被淋洗的效果看，消化液每天回流方式比產(chǎn)氣量下降后回流的方式好，并且建議對(duì)噴淋裝置的等流量分配問(wèn)題、回流泵選型與回流管布局及規(guī)格的匹配問(wèn)題作進(jìn)一步深入研究。關(guān)鍵詞:沼氣干發(fā)酵導(dǎo)氣措施滲濾液噴淋方式工程調(diào)控車(chē)庫(kù)式中圖分類(lèi)號(hào):X705;S216.4文獻(xiàn)標(biāo)識(shí)碼

3、:A文章編號(hào):1000-1298(2013)S2-0143-06EffectofGasGuideMeasurementandLeachate-recirculationonGasProductionfromDryFermentation121211DuJingZhuDewenQianYutingChenYongshengChenGuangyinChangZhizhou(1．JiangsuAgriculturalWasteTreatmentandＲecycleEngineeringＲesearchCenter，Nanjing210014，China2．

4、NanjingＲesearchInstituteofAgriculturalMechanization，MinistryofAgriculture，Nanjing210014，China)Abstract:Inordertoobtaintheengineeringcontrolmeasureshelpfultoimprovethedryfermentationefficiency，takingfreshcowdungandricestrawsasrawmaterials，theeffectofgasguidemeasurementandleachat

5、e-recirculationongasproductionfromdryfermentationwasanalyzedundertheconditionsofroomtemperature(ambienttemperatureof22～36℃)andthetotalsolidconcentrationof16%．Theresultsindicatedthatbiogasefficiencywasimprovedthroughregulationmeasuresincludinglayingvertical33andhorizontalvent-tu

6、bes．Theaveragevolumeofbiogasyieldwasupto0.36m/(m·d)(thegasyield333withrawmaterialswas155m/toftotalsolid)，higherthanthecomparisongarage(0.28m/(m·d)，3thegasyieldwithrawmaterialswas120m/tofTS)inthewholefermentationcycle(86d)．Fromtheeffectofleachedwithfermentationmaterials，itwascon

7、cludedthatthegaragebyreturningspraydigestiveliquideverydaywasmoreeffective．Furthermore，theequalflowdistributionwithspraydevice，matchingofthepumpselectionandlayoutofreturnpipeshouldbein-depthresearched．Keywords:BiogasDryfermentationAirguidemeasureLeachatespraymodeEngineeringcont

8、rolGarage-type廠。歐洲在連續(xù)式和間歇式干發(fā)酵方面早已開(kāi)始引言［1～2］研究并得到了商業(yè)化運(yùn)作。