【正文】 以及當?shù)氐木唧w情況（如施工條件）。季節(jié)溫差大，多 年平均氣溫 ℃。 工藝流程如下： 市政 污水 → 中 格柵 → 污水提升 泵房 → 細格柵 → 旋流 沉砂池→ 配水井 → 厭氧池→ 氧化溝→ 配水集泥井 → 二沉池 → 接觸池 → 計量槽 →出水 關鍵詞： 污水處理廠 ； 合流制 ；厭氧池； 氧化溝； 投資費用 Abstract Ⅱ Yingtan Xihu District sewage treatment plant design ABSTRACT Yingtan city is located in the northeast of Jiangxi Province, the letter in the middle and lower reaches of. Letter from Jiang Zidong to west through entering the city of Poyang Lake. Urban groundwater basic diving, letter River crossstrait lowlying, high underground water level, with rich water. Along with the industry to develop quickly in the round, letter river is seriously polluted, to the development of economy and the improvement of people39。信江自東向西流經(jīng)本市進入鄱陽湖。 the investment of sewage treatment plants 摘要 Ⅰ 目錄 第一部分設計說明書 ............................................................................ 1 第 1 章 設計任務及資料 .................................................................... 1 設計任務 ............................................................................................................ 1 設計依據(jù) ............................................................................................................ 1 設計資料 ............................................................................................................ 2 工程概況 .................................................................................................. 2 市政排水條件 ： ....................................................................................... 2 設計原則 ............................................................................................................ 3 污水處理廠設計原則 ................................................................................ 3 污水處理工程運行過程中應遵循的原則 .................................................... 3 第 2 章 工程總體設計 .......................................................................... 4 服務范圍 ........................................................................................................... 4 設計規(guī)模 ........................................................................................................... 4 進水水質(zhì)情況 ..................................................................................................... 4 出水水質(zhì)標準 ..................................................................................................... 4 第 3 章 設計方案論證 ........................................................................ 5 廠址選擇 ............................................................................................................ 5 污水廠處理流程的選擇 ....................................................................................... 5 確定處理流程的原則 ................................................................................ 5 污水處理流程的選擇 ................................................................................ 6 污水處理流程方案的介紹與比較 ............................................................... 7 污水處理流程方案的確定 ......................................................................... 9 第 4 章 污水廠的工藝設計選擇 ......................................................... 10 格柵的選擇 .......................................................................................................10 沉砂池的選擇 ....................................................................................................10 氧化溝類型的選擇 ............................................................................................11 二沉池的選擇 ...................................................................................................14 污泥處理工藝的選擇 ........................................................................................15 消毒池 .............................................................................................................17 巴氏計量槽 .......................................................................................................17 第 5 章 各建構筑物設計規(guī)模 ............................................................ 18 污水提升泵房 ....................................................................................................18 細格柵 .............................................................................................................18 沉砂池 .............................................................................................................19 厭氧池 ..............................................................................................................19 氧化溝 ..............................................................................................................19 Abstract Ⅱ 二沉池 .............................................................................................................19 消毒池 ..............................................................................................................20 污泥泵房設計 ....................................................................................................20 貯泥池 ..............................................................................................................20 .........................................................................................................20 第二部分 西湖區(qū)污水處理廠設計計算書 ......................................... 21 第 6 章 原水水量計算 ........................................................................ 21 近期水量計算 ....................................................................................................21 遠期水量計算 ....................................................................................................22 第 7 章 污水處理程度計算 ................................................................ 24 污水的 COD 處理程度計算 ................................................................................24 污水的 BOD5處理程度計算 ...............................................................................