城市发展带来的后果之一就是城市生活污水排放量的增加为了处理与日俱增的城 市生活污水,扩建己有的城市污水处理厂或者兴建新的城市污水处理厂就显得尤为必 要与之休戚相关的污泥产量也随着污水处理量的增加而增加,因此,污泥处理处置就 显得尤为迫切一直以来,污泥处理的传统工艺过程就包括如下内容:污泥的浓缩!污 泥的消化!污泥的脱水和污泥的干燥与焚烧至于污泥处理后残余固体物质的最终处置 工艺过程则包括如下内容:投海!土地填埋和土地利用等上述几种污泥处置工艺各具 特色,可是,各自的缺点却也很明显因此,现阶段国内外研究的热点集中于利用污泥 (或污泥灰)烧制陶粒的用途本研究的目的就在于讨论利用污泥灰烧制污泥灰陶粒的 可能性和可行性通过对在实验室条件下温度为600e时间持续lh的焙烧剩余物)污 泥灰进行物理化学性质和微观结构等项目的检测分析,指出了利用污泥灰烧制污泥灰陶 粒的可能性,并提出了如下假设:对于类似于二氧化硅一氧化铝一氧化镁的三元系统, 其化学组成在低共熔点(温度为1361e时的低共熔点)对应区域内的污泥灰均有可能在 相对较低的温度下烧制污泥灰陶粒在自行设计了柱状造粒机的基础上,将通过干法一 一压力成型法制备的污泥灰生料球(丘eshsew吧esludgeashpellet)在最高温度为1100 e的条件下持续焙烧60min,制成污泥灰陶粒然后测定了其耐压强度(comPressive strength)!表观密度(apparenidensity)!lh吸水率和比表面积,确认污泥灰陶粒具有优 越的陶瓷材料性能,指出了利用污泥灰烧制污泥灰陶粒的可行性根据上述已经测得的 污泥灰陶粒的性能参数,指出本研究制备的污泥灰陶粒的应用范围广泛,除了适用于制 备多种建筑墙体材料!承重结构材料等方面外,还可用作环境工程等方面 关键词污泥处理与处置造粒污泥灰陶粒 宝-匆浙江大学硕士学位报告污泥的特性与烧制陶粒的可行性研究 英文摘要 OneofthebadconsequeneesoftheeontinualdeveloPmenioftheresidenteitieseanbethe increasingamountofdisehargesanitarywatertothe们nunieiPalsewagewatertreatmentPlants. Asaresult,it15obviouslyneeessarytoenlargethetreateapacityoftheexistentmumeiPal sewagewatertreatmentPlantsorbuildnewPlants.Relatedwiththewaterdischargequantity, theProductionofthesewagesludgehadalsoaugnlentedaceomPaniedwiththeenhaneement oftheformer.50,itwouldbeveryimPendeneyforthetreatmentofsewagesludge.Ingeneral, thetraditionalteehnologywhiehwasusedtohandlemunieiPalsewagewaterwasasfollows: sewagesludgeconcentration,sewagesludgedigestion,sewagesludgedewatering,sewage sludgedesiccationandineineration.Asfortheresidue,that15,solidresultedfromtheabove sewagesludgetreatmeniProeesses,itwouldbedisPosedthroughthefollowingtechniques, which15oeeandisPosal,orlanfill,orlandutilizationete.AlthoughtheaboveseveraldisPosal methodshadmanybenefieialcharacteristiesresPeetively,theirshortagewasalsoevident.For thesake,theeoncemaboutsewagesludgefromthehomeandabroadwasconeeniratedonthe PreParationofsewagesludgeashceramleagitatorderivedfromthesewagesludgeash.And thePurposeoftheinvestigation15toanalysethePossibilityandthefeasibilityforthesewage sludgeashsinteringthesewagesludgeashceramieagitator.ForthePurpose,theauthorhad examinedandmeasuredthePhysieo一ehemicalProPertiesofsewagesludgeash,whieh15the residuesoriginatedfromthesewagesludgeat600oCforlh.Havingassessedthoseresults, theeonelusioneanbeeasilydrawnthatit15likelytosinterthesewagesludgeeeramicagitator forsewagesludge,andtheassumPtionthatforthesystemwhieh15madeuPfromsilieon dioxide一alu而numoxide~agnesiumoxide,iftheireoncentsvariedthroughoutthearea whichwascorrespondwiththeeuteetiePoint(atthePointthetemperature151361oC),the sewagesludgeasheanbe Provided.Toevaluatethe utilizedforsinteringthesewagesludgeasheerannieagitatorwas eeramieagitator,theauthor feasibiityforsewagesludgeashsinteringsewagesludgeash haddesignedthePrismatiePelletingmachine.DePendingonthe machine,thesewagesludgeashfreshPelleteanbePrePared,andthenat1100aCithadbeen sinteredfor60mininmuffieoveninairatmosPhere.BytheProcess,thefinalProduethad 七冬匆浙江大学硕士学位报告污泥的特性与烧制陶粒的可行性研究 beenfabricated,beingthesewagesludgeeeramieagitatoLAftermeasuredthemeeh丽cal ProPertiessuchaseomPressivestrengthandapParentdensityandwaterabsorptionduringlh ete,thefollowingeonelusioneanbegot:itwasfeasibleforthesewagesludgeashPreParing thesewagesludgeasheeramieagitator.Intheend,sewagesludgeasheeramlcagitatoreanbe usednotonlyforvariousbuildingmaterialsandeonstrueturematerials,butalsofor environmentalengeering. Keywordssew吧esludgetreatment,sewagesludgedisposal,pelleting,sewagesludgeash eeramieagitator 111 常匆浙江大学硕士学位报告污泥的特性与烧制陶粒的可行性研究 目录 中文摘要..0二00.......................0.0./.0,0./..,/,/,0二0...../.0..0.0.../二//.I 英文摘要............/............../..,0.0二/0.0./........./.0二0.......000./../..,/.,n 第一章引言,0.....0,/..,0............//,0二0............0....//#/,/,/#0.1 第二章污泥处理处置综述./.0..,/./.0/,0二/二0.,//0#0/,/#0二0二/,0,/0#/#//#0#/#/二3 2.1污泥的来源与分类......................................................,....................#3 2.1.1污泥的来源............................................................................................3 2.1.2污泥的分类..............................................................,..........................#4 2.1.3污泥的产量......................................................................................................8 2.2污泥的性质...........................................................................................................#9 2.2.1污泥的含水率和固体含量................................................................................9 2.2.2污泥的脱水性能.......................................................................一10 2.2.3污泥的理化性质..............................................................................10 2.3污泥的处理与处置..........................................................,...................13 2.3.1污泥的浓缩.....................................................................................................#13 2.3.2污泥的消化......................................................................................................14 2.3.3污泥的脱水...................................................................................#15 2.3.4污泥的干燥与焚烧..........................................................................................16 2.3.5污泥的最终处置......................................................................................18 2.4本章小结..................................................................................................................20 第三章污泥灰的物理化学性质,0,/二0#/.0/,/#/#/#0二/#0,0,0#0,0#/二21 3.1实验材料和方法......................................................................................................21 3.1.1原料制备...........................................................................................................21 3.1.2污泥灰的物理性质测定.............................,..............................................23 3.1.3污泥灰的微观结构的检测.........................................,..............................23 3.1.4污泥灰化学组成的测定..................................................................................24 3.1.5污泥灰矿物组成的测定..................................................................................27 一IV- 价匆浙江大学硕士学位报告污泥的特性与烧制陶粒的可行性研究 3.1.6污泥灰的综合热分析(差热和热重分析)........................................................28 3.2结果与讨论.................................,..................................,.................29 3.2.1污泥灰的粒度.................................................................................#.#29 3.2.2污泥灰的微观结构..........................................................................................30 3.2.3污泥灰的化学组成.....................................................................#.#.#31 3.2.4污泥灰的矿物组成........................................................33 3.2.5污泥灰的综合热分析.........................................................................#35 3.3本章小结..................................................................................................................36 第四章烧制污泥灰陶粒的可行性分析二/.0...................../0./0........../.0..,0.37 4.1实验材料和方法.................................................................,..................37 4.1.1污泥灰的造粒......................................................................................37 4.1.2污泥灰生料球的焙烧................................................................41 4.1.3污泥灰陶粒的检测..........................................................................................42 4.2结果与讨论.........................................,..................................................45 4.2.1污泥灰陶粒的耐压强度与表观密度的关系..................................................45 4.2.2污泥灰陶粒的表观密度与热处理温度的关系...............,........................46 4.2.3污泥灰陶粒的耐压强度与热处理温度的关系..............................................47 4.2.4污泥灰陶粒的吸水率与热处理温度的关系..................................................47 4.2.5污泥灰生料球的致密化现象..........................................................................48 4.3污泥灰陶粒的应用浅析.....................................................................#49 4.4本章小结..................................................................................................................50 第五章结论与展望...................................................................................................0,51 致谢.................../,/,/,0.00/0..,000.000.0/,0///..............................00./.,53