餐厨垃圾厌氧沼气发电工艺设计(完整版)

.....设计配置图纸ATUOCAD下载地址：pan.baidu./s/1i3wyCYD餐厨垃圾厌氧沼气发电工艺设计设计总说明随着国民经济的增长和餐饮行业的持续发展，我国每年的餐厨垃圾产量也在不断增加。目前，市日产生活垃圾超过17000t，其中餐厨垃圾达4000～5000t，占生活垃圾的23.5～29.4。按此计算，市餐厨垃圾的年产量不低于1.5×106t。如果将餐厨垃圾直接收集后运至养猪场喂猪，餐厨垃圾中的各种病菌会经过生物链传播，从而影响人体健康。将餐厨垃圾经简单处理后排至下水管道，则易造成较大的污染，导致细菌和病毒的滋生。将餐厨垃圾直接填埋的成本低，但会占用大量土地，且伴随而来的大量潲水威胁着水资源安全，而排放出来的沼气也会加重大气污染。而目前较为有效的餐厨垃圾处理方法是以发酵制沼气和用于发电工艺的综合处理法。本设计的餐厨垃圾采用厌氧发酵沼气发电的工艺。餐厨垃圾经过预处理后经厌氧发酵产生沼气和沼渣，沼气利用于发电使用，沼渣和沼液便用于生产肥料出售，解决了处理后副产品对于环境的污染，且有回收效益。其中部分沼液可回流用于厌氧发酵前的接种处理，已达到回收利用的效果。主要设备有厌氧发酵罐、沼气净化系统、沼气储气罐和沼气发电设备等。关键词：餐厨垃圾，厌氧发酵，沼气净化，沼气发电，工艺设计.....GeneralSpecificationofDesignWiththenationaleconomicgrowthandsustainabledevelopmentofthecateringindustry,China'sannualfoodwasteproductionisalsoincreasing.Atpresent,Nissan’sdomesticwasteinGuangzhouover17000t,wherefoodwasteupto4000~5000t,accountingfor23.5~29.4garbage.Onthisbasis,theannualproductionofGuangzhouCity,foodwasteisnotlessthan1.5×106t.Ifthefoodwastecollectedandtransporteddirectlytothepigfarmpigs,foodwasteinavarietyofbacteriacanspreadthroughthefoodchain,thusaffectinghumanhealth.Willsimplypreparedfoodwastedischargedtosewer,couldeasilyleadtogreaterpollution,leadingtothebreedingofbacteriaandviruses.Thelowcostoffoodwastedirectlytothelandfill,butitwilltakeupalotofland,andisaccompaniedbyalargenumberofShaoshuithreatenwatersecurity,andwillincreasemethaneemissionsfromairpollution.Atpresent,moreeffectivemethodisbasedonthefermentationoffoodwastetreatmentbiogasforpowergenerationtechnologyandintegratedapproach.Thedesignofthekitchenwastebiogasusinganaerobicfermentationprocess.Afterpretreatmentoffoodwastebyanaerobicfermentationtoproducebiogasandbiogas,biogasutilizationinelectricitygeneration,biogasandbiogaswillbesoldfortheproductionoffertilizers,tosolvetheprocessingbyproductsforpollutionoftheenvironment,andthereisrecoveryefficiency.Someofthemmayreturnforanaerobicfermentationslurrypriortoinoculation,theeffectofrecyclinghasbeenreached.Majorequipmentanaerobicfermentationtank,gaspurificationsystem,gastankandbiogaspowergenerationequipment.Keywords:Foodwaste,anaerobicfermentation,biogaspurification,biogaspowergeneration,processdesign.....目录1文献综述..........................................................................11.1餐厨垃圾的概述..............................................................11.1.1餐厨垃圾的定义........................................................11.1.2餐厨垃圾的特性........................................................11.1.3餐厨垃圾的现状........................................................21.2餐厨垃圾的危害..............................................................21.2.1危害人体健康..........................................................21.2.2影响城市市容和环境卫生................................................21.2.3浪费资源..............................................................31.3餐厨垃圾单独处理的必要性....................................................31.4国外餐厨垃圾处理概况........................................................31.4.1美国餐厨垃圾处理状况..................................................41.4.2日本餐厨垃圾处理状况..................................................41.4.3国外其他餐厨垃圾处理概况..............................................41.4.4国餐厨垃圾处理概况....................................................51.5餐厨垃圾的管理原则..........................................................61.6餐厨垃圾处理技术的概括......................................................61.6.1填埋和焚烧处理技术....................................................61.6.2破碎处理与饲料处置....................................................71.6.3好氧堆肥化处理........................................................81.6.4厌氧消化处理..........................................................91.6.5蚯蚓处理技术.........................................................101.6.6生物发酵制氢技术.....................................................101.6.7湿热处理技术.........................................................111.6.8提取生物降解性塑料技术...............................................111.7餐厨垃圾处理的发展趋势.....................................................121.8餐厨垃圾处理技术的选择.....................................................121.9餐厨垃圾厌氧沼气处理工艺的原理及特点.......................................131.9.1有机厌氧发酵处理的原理...............................................131.9.2厌氧处理的工艺流程简介...............................................131.9.3厌氧发酵工艺因素及控制...............................................151.9.4餐厨垃圾厌氧沼气处理的必要性.........................................161.10餐厨垃圾厌氧发酵工艺实例..................................................181.10.1美国试验工厂工艺....................................................181.10.2法国的Valogra工艺..................................................181.10.3丹麦CarBro工艺.....................................................181.10.4厌氧-好氧工艺.......................................................191.11餐厨垃圾厌氧发酵的存在问题................................................19.....2餐厨垃圾厌氧沼气发电工艺说明.....................................................202.1设计标准与规...............................................................202.1.1设计规...............................................................202.1.2设计标准依据.........................................................242.2餐厨