【正文】 ..............................................................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 ...........................................................................................................43 主要設(shè)計參數(shù) ...................................................................................................45 運行周期 ...........................................................................................................45 曝氣池體積 V ...................................................................................................45 復核潷水高度 h1 ...............................................................................................46 復核污泥負荷 ...................................................................................................46 剩余污泥產(chǎn)量 ...................................................................................................46 BOD5 ....................................................................................................47 復 核出水 NH3N ..............................................................................................48 設(shè)計需氧量 .....................................................................................................49 標準需氧量 SOR ..........................................................................................50 曝氣池布置 .....................................................................................................51 SBR 反應(yīng)池構(gòu)造尺寸 ..................................................................................51 曝氣頭計算 .....................................................................................................52 空氣管計算 .....................................................................................................52 第 III 頁 共 III頁 潷水器 .............................................................................................................53 鼓風機房 ........................................................................................................................53 鼓風機房設(shè)計要求 ...........................................................................................53 供風量 ...............................................................................................................54 供風風壓 ...........................................................................................................54 鼓風機的選擇 .