排水工程ao脫氮工藝畢業(yè)設(shè)計(jì)

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1、摘要水資源是經(jīng)濟(jì)可持續(xù)發(fā)展的基本保證，污水的任意排放或處理不徹底的排放，都會(huì)給水資源環(huán)境帶來嚴(yán)重的污染問題。遼寧省沈陽市人口數(shù)較多，是以工業(yè)為主的大中型城市。污水主耍以生活污水為主，BOD、COD、SS指標(biāo)均較高，但相對(duì)來說設(shè)計(jì)適應(yīng)當(dāng)?shù)貤l件的污水處理廠不是難事，而且無需較大的投資?；谏鲜鲈?，本設(shè)計(jì)在充分調(diào)研該市水文地質(zhì)、受納水體水質(zhì)資料、人口分布和氣象條件的情況下，對(duì)包括排水管網(wǎng)和污水處理廠的整套排水設(shè)施進(jìn)行設(shè)計(jì)。其中，對(duì)進(jìn)水水質(zhì)、出水水質(zhì)進(jìn)行分析，污水處理廠一級(jí)、以及以A/O法為主體的二級(jí)處理工藝流程的選擇給予說明，對(duì)具體污水及污泥構(gòu)筑物結(jié)構(gòu)進(jìn)行了詳細(xì)計(jì)算。本

2、文將技術(shù)經(jīng)濟(jì)分析評(píng)價(jià)貫穿于設(shè)計(jì)的全過程，力求使工程項(xiàng)目達(dá)到經(jīng)濟(jì)最優(yōu)化。關(guān)鍵詞城市污水處理廠進(jìn)水水質(zhì)A/O法污泥處理AbstractWaterresourcesensurethesustainingdevelopmentofeconomy.Sewagedischargedatrandomorhalftreatedcanexposeseriouspollutiontothewaterresources.Cityshenyanglocatesatmiddleofliaoningprovince.Itisapopulousregionwheretheshortageofwa

3、terissevere.Withthedevelopmentofindustryandtheraiseoflivingstandard,theshortageofwaterisevidentdaybyday.Greatamountofdomesticandindustrialwasterwaterisdischargedwithoutpropertreatment,whichpollutestheriverbadly.Thedamagedenvironmentisendangeringthedevelopmentofeconomicandpeople'slife.T

4、hebuildingofwaterdrainagesystemisamust.Thedesignbasedonthehydrological,geologicalandreceivingwatermaterials.Itincludesthedistributionofwasterwaterdischargesystemanddesignofwastewatertreatmentplant.Specifically,itreasonsthechoiceofprimaryandsecondarytreatmentprocess一A/Oprocess,thecalcul

5、ationofconstructingprocess.Meanwhile,evaluateandcalculatethetotalcostoftheproject.Keywordsurbanwastewatertreatmentplant,receivingwater,inflowquality,outflowquality,A/Oprocess,sludgetreatment目錄摘要IAbstractII第1章緒論11」畢業(yè)設(shè)計(jì)背景11.2畢業(yè)設(shè)計(jì)資料2第2章編制依據(jù)和設(shè)計(jì)內(nèi)容42」自然狀況42.1.2地質(zhì)資料42.2沈陽市目前狀況52.2.1城市各區(qū)人口密度及污

6、水量標(biāo)準(zhǔn)52.2.2工業(yè)企業(yè)與公用建筑的排水量水質(zhì)資料52.3研究設(shè)計(jì)內(nèi)容62.3.1方案選擇與工藝設(shè)計(jì)計(jì)算要求62.3.2繪圖要求6第3章排水管網(wǎng)規(guī)劃設(shè)計(jì)83」排水管網(wǎng)規(guī)劃設(shè)計(jì)原則83.1.1設(shè)計(jì)基本原則83.1.2排水體制(sewwersystem)的確定83.2排水管網(wǎng)的定線93.3排水管網(wǎng)水力計(jì)算103.3.1水力計(jì)算的基本公式103.3.2污水管道的最小埋設(shè)深度113.3.3在管道水力計(jì)算中還應(yīng)注意以下問題133.4污水管道水的電算133.5排水管網(wǎng)方案的技術(shù)經(jīng)濟(jì)比較153.5.1方案I的經(jīng)濟(jì)概預(yù)算153.5.2方案II的經(jīng)濟(jì)概預(yù)算153.6雨水管道的水力

7、計(jì)算163.6.1設(shè)計(jì)要點(diǎn)163.6.2雨量分析163.6.3管渠流量的確定173.6.4水力計(jì)算18第4章污水處理廠設(shè)計(jì)計(jì)算204」污水處理廠位置的選擇204.2污水處理工藝流程的選擇204.3污水處理程度的確定224.3.1設(shè)計(jì)流量及設(shè)計(jì)人口數(shù)計(jì)算224.3.2污水水質(zhì)污染程度254.4各處理構(gòu)筑物的設(shè)計(jì)計(jì)算284.4.1格柵(barscreen)284.4.2沉砂池(gritchamber)314.4.3初沉池(primarysedimentationtank)364.4.4曝氣池(aerationtank)434.4.5二沉池544.4.6消毒接觸池(c