摘要:为了考察玉米秸秆水解残渣(Unhydrolyzedsolid,UHS)的厌氧消化产甲烷潜力,研究了接种物类型、接种比例以及发酵温度对UHS产气性能的影响。结果表明,餐厨垃圾厌氧消化液作为接种物时,UHS具有较高的产气能力,累积甲烷产量达到208.06mL·g-1VS;UHS的累积甲烷产量与接种物对底物的比值(Inoculumtosubstrateratios,RI/S)有关,其值随着接种比例的减小而逐渐降低,当接种比例RI/S为0.1颐1~3颐1时,累积甲烷产量为111.20~224.48mL·g-1VS,UHS的生物降解率为27.89%~56.29%,其降解能力随着底物浓度的升高而降低;在高温发酵(55益)和中温发酵(35益)条件下,相同接种比例的对照组中,UHS累积甲烷产量较为接近,但高温发酵的产气速率明显高于中温发酵。关键词:玉米秸秆;水解残渣;厌氧;甲烷;发酵中图分类号:X712文献标志码:A文章编号:1672-2043(2016)03-0584-06doi:10.11654/jaes.2016.03.023玉米秸秆水解残渣厌氧消化的产气性能陈世平1,汤晓玉2*,肖泽仪1*,王文国2,尹小波2,VENKATESHBalan3,吴波2,胡启春2(1.四川大学化学工程学院,成都610065;2.农业部沼气科学研究所,成都610041;3.密歇根州立大学材料科学与化学工程系,美国兰辛48910)BiogasproductionofunhydrolyzedsolidfromcornstoverhydrolysatebyanaerobicdigestionCHENShi-ping1,TANGXiao-yu2*,XIAOZe-yi1*,WANGWen-guo2,YINXiao-bo2,VENKATESHBalan3,WUBo2,HUQi-chun2(1.SchoolofChemicalEngineering,SichuanUniversity,Chengdu610065,China;2.BiogasInstituteofMinistryofAgriculture,Chengdu610041,China;3.DepartmentofMaterialsScienceandChemicalEngineering,MichiganStateUniversity,Lansing48910,USA)Abstract:Biochemicalconversioninlignocellulosicbiorefineriesgenerateslargeamountofsolidresidues(Unhydrolyzedsolids,UHS).TheUHSmainlycontainscarbohydratesandlignin.AnaerobicdigestioncouldbeappliedtoconvertthosecarbohydratesintoCH4andtonatural原lyenrichligninforfurtherutilization,thusimprovingtheeconomicsofthewholebiorefineryprocess.HerethemethaneproductionpotentialofUHSderivedfromcornstoverbiorefinerywasinvestigatedunderdifferenttypesofinoculum,diverseinoculumtosubstrateratios(RI/S)andvariousfermentationtemperatures.ResultsindicatedthatthebiogasproductivityofUHSwashigherwhenusingkitchenwasteADslur原ryasinoculum,andthecumulativemethaneproductionwasupto208.06mL·g-1VS.ThecumulativemethaneproductiondecreasedwithdecreaseinRI/S.WhenRI/Swasinrangeof0.1颐1to3颐1,thecumulativemethaneproductionwasbetween111.20to224.48mL·g-1VSandtheUHSbiodegradabilityrangedfrom27.89%to56.29%.ThebiodegradabilityofUHSdecreasedassubstrateconcentrationincreased.Thecumulativemethaneproductionwassimilaratboth55益and35益atthesameRI/S,butthebiogasproductionratewasmuchhigherat55益.Keywords:cornstover;unhydrolyzedsolild;anaerobic;methane;fermentation收稿日期:圆园15原09原09基金项目:四川省科技计划项目(NO.2014HH0018);中国农业科学院科技创新工程(CAAS-ASTIP-2015-BIOMA)作者简介:陈世平(1991—),男,贵州人,硕士研究生,从事生物质能源转化方面的研究。E-mail:chenshiping2010@163.com*通信作者:汤晓玉E-mail:tangxiaoyu@caas.cn;肖泽仪E-mail:mgch@scu.edu.cn圆园16,35(3):584-5892016年3月农业环境科学学报允燥怎则灶葬造燥枣粤早则燥鄄耘灶增蚤则燥灶皂藻灶贼杂糟蚤藻灶糟藻陈世平,汤晓玉,肖泽仪,等.玉米秸秆水解残渣厌氧消化的产气性能[J].农业环境科学学报,2016,35(3):584-589.CHENShi-ping,TANGXiao-yu,XIAOZe-yi,etal.Biogasproductionofunhydrolyzedsolidfromcornstoverhydrolysatebyanaerobicdigestion[J].允燥怎则灶葬造燥枣粤早则燥-耘灶增蚤则燥灶皂藻灶贼杂糟蚤藻灶糟藻,2016,35(3):584-589.第32卷第1期2016年3月纤维素乙醇以其原料来源广泛、储量丰富、可持续...