【正文】 .......................................... 10 的因素 ........................................................... 10 工藝方案分析 ......................................................................................... 11 A2/O法 ................................................................................................. 12 SBR法 .................................................................................................. 15 ................................................................................................... 18 A2/O工藝流程 ...................................................................................... 18 SBR 工藝流程 ...................................................................................... 19 主要構(gòu)筑物的選擇 ........................................................................................... 20 格柵 ..................................................................................................... 20 進(jìn)水閘井 .............................................................................................. 20 污 水 泵 房 .............................................................................................. 20 第 II 頁 共 III 頁 沉砂池 ................................................................................................. 21 SBR 反應(yīng)池 .......................................................................................... 22 消毒 ..................................................................................................... 22 濃縮池 ................................................................................................. 23 污泥脫水 .............................................................................................. 23 第 3章 污水處理系統(tǒng)的設(shè)計 24 中格柵 ............................................................................................................. 24 設(shè)計要求 .............................................................................................. 24 設(shè)計流量 .............................................................................................. 25 格柵計算 ................................................................................................ 25 格柵的比較選型 ................................................................................... 27 污水提升泵站 .................................................................................................. 28 設(shè)計說明 .............................................................................................. 28 一般規(guī)定 .............................................................................................. 28 選泵 ..................................................................................................... 29 吸、壓水管路實際水頭損失的計算 ....................................................... 30 水泵機(jī)組基礎(chǔ)的確定和污水泵站的布置 ................................................ 32 泵房高度的確定 ................................................................................... 32 泵房附屬設(shè)施及尺寸的確定 .................................................................. 33 泵房值班室、控制室及配電間 .............................................................. 34 細(xì)格柵 ............................................................................................................. 34 曝氣沉砂池 ...................................................................................................... 36 設(shè)計說明 .............................................................................................. 36 設(shè)計參數(shù) .............................................................................................. 36 沉砂池比較 .......................................................................................... 37 池體設(shè)計計算 ....................................................................................... 37 曝氣系統(tǒng)設(shè)計計算 ................................................................................ 38 進(jìn)水，出水及撇油 ................................................................................ 38 排砂量計算 .......................................................................................... 38 提砂泵房與砂水分離器 .................................................................................... 40 配水井 ............................................................................................................. 41 比較選型 .............................................................................................. 41 設(shè) 計要求 .............................................................................................. 41 設(shè)計計算 .............................................................................................. 42 SBR反應(yīng)器設(shè)計 ............................................................................................... 43 設(shè)計要點(diǎn) .............................................................................................. 43 主要設(shè)計參數(shù) ....................................................................................... 45 運(yùn)行周期 .............................................................................................. 45 曝氣池體積 V....................................................................................... 45 復(fù)核潷水高度 h1 ................................................................................... 46 復(fù)核污泥負(fù)荷 ....................................................................................... 46 剩余污泥產(chǎn)量 ....................................................................................... 46 BOD5 ....................................................................................... 47 復(fù)核出水 NH3N ................................................................................... 48 設(shè)計需氧量 ........................................................................................ 49 標(biāo)準(zhǔn)需氧量 SOR 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