【正文】 remove BOD, nitrification and phosphorus absorption. The advantage of this prehensive craft is extensive adaptability, totally suitable for reality originally designed purpose. Keywords： AAO process, nitrogen and phosphorus removal, overall layout **市污水處理廠工藝設(shè)計 III 目錄 摘要 ...................................................................................................................................... I 第一部分設(shè)計說明書 .................................................................................................. 1 1 概述 ................................................................................................................................ 1 設(shè)計任務(wù) ................................................................................................................. 1 設(shè)計目的及意義 ..................................................................................................... 1 設(shè)計要求 ................................................................................................................. 1 設(shè)計資料 ................................................................................................................. 2 污水處理程度 ......................................................................................................... 3 設(shè)計總則 ................................................................................................................. 3 2 污水處理廠設(shè)計 ....................................................................................................... 5 廠址選擇 ................................................................................................................. 5 污水工藝選擇 ......................................................................................................... 5 工藝流程 ................................................................................................................. 9 污水構(gòu)筑物的選擇 ................................................................................................ 9 污泥構(gòu)筑物選擇 ................................................................................................... 11 3 污水處理廠平面布置 ............................................................................................ 13 污水處理廠平面布的原則 .................................................................................. 13 污水處理廠的平面布置 ...................................................................................... 14 4 污水處理廠高程布置 ............................................................................................ 16 高程布置方法 ...................................................................................................... 16 第二部分設(shè)計計算書 ................................................................................................ 17 5 污水處理構(gòu)筑物設(shè)計計算 .................................................................................. 17 設(shè)計污水水量 ....................................................................................................... 17 中格柵 ................................................................................................................... 17 泵房 ....................................................................................................................... 20 細格柵 ................................................................................................................... 20 沉砂池 ................................................................................................................... 21 輻流式初沉池 ....................................................................................................... 22 AAO 池 ............................................................................................................... 27 輻流式二沉池 ....................................................................................................... 39 接觸消毒池 ........................................................................................................... 45 **市污水處理廠工藝設(shè)計 IV 計量設(shè)備 ............................................................................................................. 48 6 污泥處理構(gòu)筑物設(shè)計計算 ................................................................................. 51 污泥量計算 ........................................................................................................... 51 污泥濃縮池 .......................................................................................................... 52 貯泥池 ................................................................................................................... 56 消化池 ................................................................................................................... 57 污泥脫水 ............................................................................................................... 70 附屬設(shè)施計算 ....................................................................................................... 70 7 構(gòu)筑物高程布置 ..................................................................................................... 72 污水高程設(shè)計計算 .............................................................................................. 72 污泥高程設(shè)計計算 .............................................................................................. 75 致謝 ................................................................................................................................... 77 參考文獻 ......................................................................................................................... 78 **市污水處理廠工藝設(shè)計 1 第一部分設(shè)計說明書 1 概述 設(shè)計任務(wù) **市 12 萬 m3/d 污水處理廠工藝設(shè)計。 為防止水污染，根據(jù)城市規(guī)劃，決定在該市東部興建一座污水廠，經(jīng)處理后的水排入附近湍河或工業(yè)回用。近 200 年來，城市污水處理已從原始的自然處理、簡單的一級處理發(fā)展到利用各種先進技術(shù)、深度處理污水 ， 并回用 。 其次，做本設(shè)計可以使我得到很大的提高， 可在 不同程度上提高調(diào)查研究，查閱文獻，收集資料和正確熟練使用工具書的能力，提高理論分析、制定設(shè)計方案的能力以及設(shè)計、計算、繪圖的能力；技術(shù)經(jīng)濟分析和組織工作的能力；提高總結(jié)，撰