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Effect of dimensions of plastic biodigester (width:length ratio) on gas production and composition of effluent

机译:塑料生物消化器的尺寸(宽长比)对产气量和出水成分的影响

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Anexperimentwasconductedinordertocomparetheeffectofthedimensionsofplasticbiodigesters(width:lengthratio)ongasproductionandcompositionofeffluent.Theexperimenthadthreetreatmentsconsistingofdifferentdimensionsofplasticbiodigester:2,3and5mlengthand64cmdiameter.Freshcowmanureataloadingrateof4kgDM/m3ofliquidcapacitywaschargeddailyintoeachbiodigester.Themanurewasmixedwith11.4,17.1and28.5litresofwaterinbiodigesters2,3,and5mlong,respectively,togivearetentiontimeof20days.Biogasproductionwasmeasureddailybywaterdisplacementininvertedlight-weightcontainerssuspendedin200litredrumsfilledwithwater.Gasproductionprogressivelyincreasedwithtimeinallthreebiodigestersandafter30dayswas55%oftheliquidvolumeforthe5mbiodigestercomparedwith33%forthe2and3mbiodigesters.Therewasnoapparenteffectofbiodigesterdimensiononchemicalcharacteristicsoftheeffluent,withoverallmeansof3.59%forDM,77.4%fororganicmatterinDM,6.59forpHand967mgN/litre,respectively.Ammoniacontentintheeffluentwasonaverage391mg/litre,accountingfor41.1%oftotalN.Itisconcludedthatalength:diameterratioof5:0.65isbetterthanratiosof2:0.65or3:0.65fortheconstructionofplugflowtubularplasticbiodigesters.
机译:Anexperimentwasconductedinordertocomparetheeffectofthedimensionsofplasticbiodigesters(宽度:lengthratio)ongasproductionandcompositionofeffluent.Theexperimenthadthreetreatmentsconsistingofdifferentdimensionsofplasticbiodigester:2,3and5mlengthand64cmdiameter.Freshcowmanureataloadingrateof4kgDM / m3ofliquidcapacitywaschargeddailyintoeachbiodigester.Themanurewasmixedwith11.4,17.1and28.5litresofwaterinbiodigesters2,3,and5mlong分别togivearetentiontimeof20days.Biogasproductionwasmeasureddailybywaterdisplacementininvertedlight-weightcontainerssuspendedin200litredrumsfilledwithwater.Gasproductionprogressivelyincreasedwithtimeinallthreebiodigestersandafter30dayswas55%oftheliquidvolumeforthe5mbiodigestercomparedwith33%forthe2and3mbiodigesters.Therewasnoapparenteffectofbiodigesterdimensiononchemicalcharacteristicsoftheeffluent,withoverallmeansof3.59 DM的百分比,DM的77.4%,手的6.59毫克,分别为967mgN / L。废水中氨的平均含量为391mg / L,占总量的41.1%总的来说,对于构造塞流式管状生物塑料消解剂,其截面积长度:5:0.65的比率比2:0.65或3:0.65的比率更好。

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