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    西安城市污水處理廠污泥組成特性及用于普通制磚處置的可行性研究

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    本研究根據西安市污水處理現狀與規劃,確定了合理的污泥處理規模!污泥處置 工藝方案和污泥處置廠廠址,經過充分比較論證,推薦了處置效果好!運行穩定!技 術先進!節能與投資運行成本低的處理方案,使工程獲得最佳的環境效益!社會效益 與經濟效益具體研究成果如下: 根據西安市鄧家村污水處理廠污泥實際產量,在理論計算和統計資料的基礎上, 確定西安市污水處理廠污泥產量為1.4噸干泥/l04m3水截至2007年,西安市目前己建 成鄧家村和北石橋污水處理廠兩座,正在建設西安市第三!四污水處理廠,規劃建設 袁樂村污水處理廠,通過計算分析,污泥處置項目分期建設規模為:近期(2008年) 建設規模為20Ot/d(P=80%);中期(2010年)建設規模為1000潤(P=80%);遠期 (2020年)建設規模為2000此(P二80%)根據西安市污泥處理及處置規劃,西安 市污水處理廠的污泥建議采用利用污泥制作建材的處理方式經過考察,將西安市污 水廠污泥處理項目廠址選定在狄寨源雄奇制磚廠 根據西安市污水處理廠污泥泥質特性,結合國內外污泥處理處置現狀和發展趨 勢,對污泥處理處置的技術路線和經濟性進行了綜合分析,確定了近期生產燒結磚! 遠期生產園林綠化用肥的最終處置方法和污泥資源化利用方向工藝流程主要為:除 臭*重金屬毒性穩定*干化滅菌!建材利用 本工程一期總投資1785.90萬元污泥處理廠單位處理成本為140.08元,建設運營 方提供運行費用195元/噸(80%含水率污泥),可實現一定利潤 關鍵詞:污泥處置;建設規模;廠址選擇;處理工藝;經濟性西安建筑科技大學碩士報告 SludgeCharacteristiesfromWasterwaterTreatmentPlant inXi.anandFeasibilityofBriek-making Major:EnvironlnentalEngineering M.D.Candidate:Liyan SuPervisor:Prof.WangLei Abstract AeeordingtothestatusandPlanningofsewagetreatmentinXi,an,determineda reasonablesizeofsludgetreatment,sludgedisPosalProeessandsludgedisPosalPlantsite Progr田叮5.AfterthorougheomParisons,asolution15recorrunendedwhiehhasbetter disPositioneffeetsandadvaneedteehnologiesandlowandinvestlnenteost,and15stable, andenergy一saving.ItenablestheProjeettogetthebestenvironmental,soeialand eeonomiebenefits. AeeordingtotheactualoutPutsofsewagetreatmentPlantatDen自iaVillageofXi,an, thesludgeProductionofsewagetreatmentPlant15madesuretobe1.4tonsofdrysludge 加m104m3orwastewaterinxi,an,basedontneoretie叔e己eulatingandtnestatisties. Currently,twosewagetreatmentPlantshavebeenbuilt,Den自iaVillagesewagetreatmeni PlantandBeishiqiaosewagetreatmentPlant.ThethirdandfourthsewagetreatmentPlants areundereonstruction,andYuanleVillagesewagetreatmentPlant15beingPlannedtobe built.Throughtheeaieulationandanalysis,sludgedisPosalProjeeteonstruetionseale Phasesareasfollows:recently(2008)sealeofeonstruetion15200t/d(P=80%);medium term(2010)sealeofeonstruetion151000t/d(P=80%):long一term(2020)sealeof eonstruetion152000t/d(P=80%). AecordingtothesludgetreatmentanddisPosalPlarming,Xi,ansewagetreatment Plantsludge15advisedtousethewayofmakingsludgebethebuildingmaterials AftereomParison,thethirdloeation15recommendedandXi,ansewagesludge treatmentProjeetwillstartinXiongqibriekfaetoryofDizhai抖an. AeeordingtoXi,ansewagetreatmentPlantsludgemudfeatures,eombinedwith西安建筑科技大學碩士報告 domestiestatusanddevelopmenttrendofsewagesludgetreatnlentanddisPosal,sludge treatme爪anddisPosalroutesandeeonomyareeomPletelyanalyzed.ThensludgedisPosal methodsandresoureeutilizationdireetionofthereeentProductionofsinteredbriek, long一termProduetionofthefinallandseapingfertilizereomeout.Proeess15maiuly: deodorant葉heavymctaltoxicityandstabilitv葉dryingsterihzation葉buildingmaterials. ThetotalinvestmentofthisProjeet1517.859millionyuan.TheeostoftheSludge treatmeniPlant15140.08yUanPerton.TheProjeeteonstructionandoPerationProvidesthe oPeratingeostsof195yUanPerton(moistureeontentofsludge1580%).Iteangetsome Profit. Keywords:sludgedisPosal;thesealeofeonstruetion;loeationseleetion lreatmeniProcesses;economy西安建筑科技大學碩士報告 目錄 1緒論...........00....0.0.0..000,/0.....//.0/.../0.0/.00.,~.1 1.1引言.....................................................................................................................1 1.2污泥成分及性質...........................................................................2 1.2.1污泥的化學性質...........................................!..............#.2 1.2.2污泥的微生物學特性...............................................#6 1.3污泥處理工藝概述...................................................................,#8 1.3.1污泥土地利用..............................................................,............#...#8 1.3.2污泥衛生填埋....................................................,..................#10 1.3.3焚燒..........................................................,...........................................11 1.3.4污泥投海.................................................,............................................12 1.3.5污泥綜合利用............................................................................................12 1.4國外污泥處置現狀及發展趨勢.......................................................................14 1.5國內污泥處置現狀及發展趨勢.......................................................................16 1.6項目來源!研究目的和研究內容...................................................................18 1.6.1項目來源....................................................................................................18 1.6.2研究目的,...................................................................................................18 1.6.3研究內容....................................................................................................18 2建設規模和處理要求二//~./.000000/00.//00,00#//~#000~#0#0,00#0一0二000#00#20 2.1建設規模的確定...........................................................................................20 2.1.1污泥產量計算分析......................................................,........,........20 2.1.2污水污泥產泥率的確定.............................................................!........20 2.1.3污泥量預測與建設規模的確定................................................................21 2.2污泥處置程度與要求.....................................................23 2.2.1西安市污水處理廠污泥泥質檢測與分析..................-........,........23 2.2.2污泥衛生排放標準....................................................................................26 2.2.3污泥處理程度.!......,.......................................................................27 3污泥處理廠廠址選擇.000./0000.../0.0,00..,/./.0........./,~,0/,.28西安建筑科技大學碩士報告 3.1廠址選擇原則...................................................................................................28 3.2廠址選擇方案比較...............,....................,................................,...28 3.3廠址所在地區的概況.......................................................................................29 3.4廠址自然概況...................................................................................................30 3.4.1氣象條件....................................................................................................30 3.4.2地震設防烈度............................................................................................30 3.4.3水資源環境...................................................,.....................................,二30 3.5供電!給排水條件.............................................................................................30 3.6廠址綜合評價.....................................................................................................30 4污泥處理處置廠設計二/二/./.0一~.////0.000,0//.000.00.///00/.0一/.000一~.,.31 4.1工藝設計..........,..........................................................................................31 4.1.1處理工藝流程............................................................................................31 4.1.2工藝說明....................................................................................................31 4.1-3工藝參數及物料平衡................................................................................32 4.1.4主要單體的設計........................................................................................33 4.2總圖設計...........................................................................................................35 4.2.1污泥處理廠平面布置原則........................................................................35 4.2.2廠區地面平面布置................................................................................35 4.2.3廠區地面高程設計....................................................................................35 4.2.4廠區布置技術經濟指標............................................................................36 4.3建筑設計................................,....................................................................36 4.3.1方案概況....................................................................................................36 4.3.2總體布局....................................................................................................36 4.3.3新建筑方案構思.............,....................................................................37 4.3.4新建筑造型................................................................................................37 4.3.5新建筑裝修標準.............,....................................................................37 4.3.6建筑通風!空調設計................................................................................37 4.3.7噪聲控制.........................,...............................................,..............38 4-3.8環境美化和綠化方案!.,..,.!二-...................................38 4.4輔助設施................................................,................................................38 4.4.1運輸............................................................................................................38西安建筑科技大學碩士報告 4.4.2化驗分析.,..................................................................................................39 4.5西安污泥處理處置廠污泥制磚生產線生產方案及工程估算.......................39 4.5.1生產及產品規格........................................................................................39 4.5.2生產工藝方案,.....................................................................................40 4.5.3生產線費用估算........................................................................................45 S設備清單及建構筑物尺寸./一.一.一00.0/.一..,~.一0.0./一0一00..0一一0~0.0~~一46 5.1設備選型原則........................................................................................#46 5.2主要設備表....,.............................,..................................................#.....46 5.3主要建構筑物尺寸...........,......................................,47 6環境保護,0./.,00.0,0.0.,/.,0.00.0/~.0.0.,/.0.0.0~二/一0.000:.0./0一一/0./,.48 6.1設計采用的環境保護標準....................................................................!....48 6.2主要污染源分析...................................................................................#..#一48 6.3污染物消減情況.........................................................................#.......49 6.4二次污染的防治對策及建議...........................................................................49 6.5除臭...................................................................................................................49 6.5.1臭味對環境的影響....................................................................................49 6.5.2除臭的方法.......................................................................#50 6.5.3除臭措施............................................................................................50 6.6毒性穩定...........................................................................................................51 6.7污水處理...........................................................................................................51 7節能,~.00,0..,0,0/.一.,0/././.0/.000./0.~二0~.,0.0./一00.0,/00./00.0/:.00.,.52 7.1物耗內容...............................................!.....................................................52 7.2節能措施...........................................................................................................52 7.3節水措施...............................................................-.....................................52 8風險分析.0.,0./.0二~.0././/.0.,0,0,00.0./0.0.0.0/.0./0.000.,0/,/一0.0.,.53 風險問題提出...................................................................................................53 風險因素確定及其問題的解決.......................................................................53 8.2.2 污泥重金屬無害化處理............................................................................53 污泥衛生指標(病原體和寄生蟲卵)........,.....................................53西安建筑科技大學碩士報告 8.2.3 8.2.4 惡臭.....................................................................................,.,..............54 污泥磚應用要求..........................................,...................................54 9工程投資估算與資金籌措././.0.一一/00一0./.000一~.//0.0/0/0000一~0/0~一//,.55 9.1編制依據...........................................................................................................55 9.2其他工程費用和取費標準...............................................................................55 9.3污泥處理廠投資估算.......................................................................................56 9.4投資計劃與資金籌措.......................................................................................56 10工程經濟評價,/0/00000二/.一一0.0:.0.0/.0./.0/00/00///..,~.000/0./00/.00,.57 10.1經濟評價依據.................................................................................................57 10.2財務評價.................................................,...........................................,..,57 10.2.1基礎數據..................................................................................................57 10.2.2年污泥處理收費收入估算............,.,.................................................58 10.2.3利潤預測..................................................................................................58 10.3財務評價結論.................................................................................................58 11結論和建議二//,00000/一/00..一00//.00.0~.000一00/0.00///.00~.00///....一59 11.1結論..................................................................................................,........59 H.2建議.......,.,.............,.............................................................................59 6l像致
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