【正文】 ................................................................... 7 設(shè)計(jì)依據(jù) .............................................................................................. 7 設(shè)計(jì)背景 .................................................................................... 7 設(shè)計(jì)原則 .................................................................................... 7 設(shè)計(jì)依據(jù) .................................................................................... 7 廠址選擇 .............................................................................................. 9 污水處理工藝流程方案比較及選擇 ........................................................ 9 工藝方案分析 ............................................................................. 9 目前常用的城市污水處理技術(shù) ....................................................10 工藝的比選 ..........................................................................................12 4 工藝流程 ........................................................................................................13 5 總平面布置 ....................................................................................................14 水力計(jì)算 .............................................................................................14 高程計(jì)算 .............................................................................................14 6 設(shè)備選擇與計(jì)算 .............................................................................................18 設(shè)計(jì)流量 .............................................................................................18 中格柵 .................................................................................................18 設(shè)計(jì)參數(shù) ...................................................................................18 設(shè)計(jì)計(jì)算 ...................................................................................18 進(jìn)水泵房 .............................................................................................20 細(xì)格柵 .................................................................................................21 設(shè)計(jì)參數(shù) ...................................................................................21 設(shè)計(jì)計(jì)算 ...................................................................................21 沉砂池 .................................................................................................23 設(shè)計(jì)參數(shù) ...................................................................................23 沉 砂 池尺寸 ...............................................................................23 集砂量及排砂設(shè)備 .....................................................................25 曝氣系統(tǒng) ...................................................................................26 氧化溝 .................................................................................................27 設(shè)計(jì)參數(shù) ...................................................................................27 設(shè)計(jì)計(jì)算 ...................................................................................27 二沉池 .................................................................................................33 設(shè)計(jì)參數(shù) ...................................................................................33 設(shè)計(jì)尺寸 ...................................................................................33 刮泥設(shè)備 ...................................................................................37 接觸消毒池 ..........................................................................................37 設(shè)計(jì)參數(shù) ...................................................................................37 設(shè)計(jì)計(jì)算 ...................................................................................38 計(jì)量槽 ......................................................................................39 污泥泵房 .............................................................................................39 設(shè)計(jì)參數(shù) ...................................................................................39 污泥泵 ......................................................................................39 集泥池 ......................................................................................40 污泥濃縮池 ........................................................................................40 設(shè)計(jì)參數(shù) .................................................................................40 設(shè)計(jì)計(jì)算 .................................................................................41 貯泥池 ................................................................................................42 脫水機(jī)房 ............................................................................................43 配水井 ...............................................................................................44 7 經(jīng)濟(jì)分析 ........................................................................................................46 土建費(fèi)用造價(jià)列表 ...............................................................................46 直接投資費(fèi)用 ......................................................................................47 運(yùn)行費(fèi)用計(jì)算 ......................................................................................47 動(dòng)力費(fèi)用 ...................................................................................47 人力成本 ...................................................................................48 生產(chǎn)用水水費(fèi)開支 .....................................................................48 運(yùn)費(fèi) ..........................................................................................48 維護(hù)維修費(fèi)用 ............................................................................48 管理費(fèi)用 .............................................................................................48 運(yùn)行成本核算 ......................................................................................48 8 致 謝 ........................................................................