【正文】 ............................................ 1 設(shè)計任務(wù) ................................................................................... 1 水質(zhì)情況 ................................................................................... 1 設(shè)計要求 ........................................................................................... 1 污水處理廠設(shè)計原則 ................................................................ 1 污水處理工程運行過程中應(yīng)遵循的原則 .................................. 2 環(huán)境條件狀況 ................................................................................... 2 排水 系統(tǒng) ........................................................................................... 2 設(shè)計依據(jù) ........................................................................................... 2 2 污水處理工藝流程的確定 ...................................................................... 2 設(shè)計水量的確定 ................................................................................ 2 設(shè)計水質(zhì)分析 ................................................................................... 2 進(jìn)出水水質(zhì) ............................................................................... 2 污水處理程度計算 .................................................................... 3 進(jìn)水水質(zhì)分析 ........................................................................... 3 2. 3 小區(qū)生活污水處理原則 .................................................................... 3 2. 4 核心工藝的確定 ............................................................................... 4 常用工藝的介紹 ....................................................................... 4 CAST 工藝 ................................................................................ 6 污水處理工藝流程圖 ........................................................................ 7 3 處理構(gòu)筑物 設(shè)計計算 .............................................................................. 8 中格柵 ............................................................................................... 8 設(shè)計參數(shù) ................................................................................... 8 中格柵設(shè)計計算 ........................................................................ 8 細(xì)格柵 ............................................................................................. 10 設(shè)計參數(shù) ................................................................................. 10 細(xì)格柵設(shè)計計算 ......................................................................11 污水提升泵房 ................................................................................. 13 泵站設(shè)計的原則 ..................................................................... 13 泵房形式及工藝布置 .............................................................. 13 泵房設(shè)計計算 ......................................................................... 13 沉砂池設(shè)計計算 .............................................................................. 13 沉砂池的選型 ......................................................................... 13 旋 流 式 沉砂池 的設(shè)計參數(shù) ...................................................... 14 旋 流式 沉砂池 尺寸設(shè)計 .......................................................... 14 CAST 反應(yīng)池設(shè)計計算 .................................................................... 16 CAST 反應(yīng) 池設(shè)計參數(shù)的選取 ................................................. 16 CAST 反應(yīng)池設(shè)計 ................................................................... 16 需氧量及供氣量計算 .............................................................. 19 CAST 反應(yīng)池主要設(shè) 備設(shè)計計算 ..................................................... 22 曝氣設(shè)備的選擇 ..................................................................... 22 鼓風(fēng)機(jī)的選定 ......................................................................... 22 陜西理工學(xué)院畢業(yè)設(shè)計 潷水器的選擇 ......................................................................... 22 潛水?dāng)嚢杵鞯倪x擇 .................................................................. 23 污泥回流泵 ............................................................................. 23 剩余污泥量 ............................................................................. 24 消毒設(shè)施計算計算 .......................................................................... 24 消毒劑的選擇 ......................................................................... 24 消毒劑的投加 ......................................................................... 24 平流式消毒接觸池 .................................................................. 25 4 污泥處理系統(tǒng)設(shè)計 ................................................................................ 26 設(shè)計參數(shù) ......................................................................................... 26 設(shè)計計算 ......................................................................................... 26 污泥脫水 ......................................................................................... 28 設(shè)計參數(shù)及原則 ..................................................................... 28 污泥脫水機(jī)的選擇 .................................................................. 28 脫水后污泥量計算 .................................................................. 29 脫水機(jī)房尺寸 ......................................................................... 29 加藥系統(tǒng)計算 ......................................................................... 29 5 污水處理廠總體布置 ............................................................................ 30 平面布置 ......................................................................................... 30 平面布置原則 ......................................................................... 30 平面布置內(nèi)容 ......................................................................... 31 污水處理廠高程布置 ...................................................................... 31 主要任務(wù) ................................................................................. 32 高程布置原則 ......................................................................... 32 污水處理廠構(gòu)筑物高程布置計算 ........................................... 32 6 工程概預(yù)算 ......................