厨余垃圾厌氧沼渣快速陈腐通风和加热策略探析*康建邨1，李波1，方祥2，陈子璇1，范世锁2，郑苇1（1.中国市政工程华北设计研究总院有限公司，天津300074；2.安徽农业大学，安徽合肥230036）【摘要】我国厨余垃圾干法厌氧发酵工程，末端产生大量脱水沼渣，须陈腐化腐熟后才能施用于土壤进行资源化利用，但目前缺乏具有针对性的快速陈腐化通风和加热策略研究，且缺乏工程全厂用热核算。为此，利用厨余垃圾干法厌氧工程产生的离心脱水沼渣，对快速陈腐化的通风策略和加热策略进行研究，分析快速陈腐化工程应用热量平衡的可行性。结果表明：添加25%稻秸辅料，按0.05m3/（min·m3）通风量，采用每30min通风5min的通风策略，并全程55℃加热，保持含水率不低于40%的补水策略，16d即可完全腐熟，且工段用热可全部源于沼气发电产生的余热。【关键词】厨余垃圾；脱水沼渣；快速陈腐化；工艺参数；热量平衡中图分类号：X799.3文献标识码：A文章编号：1005-8206（2023）01-0037-06DOI：10.19841/j.cnki.hjwsgc.2023.01.006AnalyseofVentilationandHeatingStrategiesforRapidDecayofAnaerobicBiogasResiduefromFoodWasteKANGJiancun1，LIBo1，FANGXiang2，CHENZixuan1，FANShisuo2，ZHENGWei1（1.NorthChinaMunicipalEngineeringDesignResearch&InstituteCo.Ltd.，Tianjin300074；2.AnhuiAgriculturalUniversity，HefeiAnhui230036）【Abstract】AlargeamountofdehydratedbiogasresiduewasproducedfromdryanaerobicfermentationprojectoffoodwasteinChina，andcouldnotbedirectlyusedforsoilresourceutilizationbeforebeingrottenfurther.Sofartherewaslackoftargetedventilationandheatingstrategyresearchonrapiddecay，andalackofwhole-plantthermalaccounting.Forthispurpose，centrifugaldehydratedbiogasresidueproducedfromdryanaerobicengineeringoffoodwastewasusedtostudytheventilationandheatingstrategyforrapiddecay.Andthefeasibilityofapplyingthermalequilibriumforrapiddecayengineeringwasanalyzed.Theresultsshowedthatafteradding25%ricestrawauxiliarymaterials，adoptingventilationvolumeof0.05m3/（min·m3），usingventilationstrategyofaerationforfiveminuteseverythirtyminutes，utilizingheatingstrategyof55℃throughoutandreplenishingwaterstrategyofmaintainingwatercontenthigherthan40%，itcouldbecompletelydecayedinsixtee...
