【正文】 6 月 王雙： 6 萬噸 /天生活污水 A2/O 處理與回用工藝設(shè)計(jì) Ⅰ 摘要 水是人類生存的根本，我國的水資源的儲(chǔ)量雖然豐富，但是由于人類的污染和破壞加之一些不可利用 的水資源使水成為我國的可持續(xù)發(fā)展的制約問題之一。 世界上河流污染最嚴(yán)重的 20 個(gè)城市有 16 個(gè)在我國。污染的主要來源有很多方面，主要是城市生活污水和工礦企業(yè)排放的廢水。 A2/O，即厭氧 — 缺氧 — 好氧三段式活性污泥法。污水在流經(jīng)三個(gè)不同功能分區(qū)的過程中，在不同微生物菌群作用下，使污水中的有機(jī)物、氮、磷得到去除。在厭氧、缺氧和好氧交替運(yùn)行的條件下可抑制絲狀菌繁殖，克服污泥膨脹， SVI 值一般小于 100，有利于處理后污水與污泥的分離，運(yùn)行中在厭氧和缺氧段內(nèi)只需輕緩攪拌，運(yùn)行費(fèi)用低。 關(guān)鍵詞：發(fā)展 ； 水污染 ； A2/O；硝化 ；節(jié)約 。 the total hydraulic retention time is less than other craft. Running alternately by the anaerobic, anoxic anaerobicaerobic conditions can inhibiting filamentous bacteria breeding, overe the sludge bulking, and the SVI generally less than 100, it is advantageous to the treatment of sewage and sludge after separation, in anaerobic and lack of oxygen in the operation of the segment only gentle stirring, low operating cost. The process effect of sewage treatment is well, and can save money for the operation of the sewage plant, advantageous to realize the reuse of the water. Keywords: development。 A2/O。 save. 王雙： 6 萬噸 /天生活污水 A2/O 處理與回用工藝設(shè)計(jì) 目錄 引言 ....................................................................................................................... 1 1 概論 ................................................................................................................... 2 設(shè)計(jì)任務(wù) .................................................................................................. 2 設(shè)計(jì)要求 .................................................................................................. 2 設(shè)計(jì)基礎(chǔ)資料 .......................................................................................... 2 污水的主要來源 ...................................................................................... 3 環(huán)境概況 .................................................................................................. 3 污水處理廠廠址 ...................................................................................... 3 市政管網(wǎng) .................................................................................................. 4 工藝流程方案的選擇 .............................................................................. 4 2 污水處理系統(tǒng) .................................................................................................... 5 中格柵 ...................................................................................................... 5 提升泵 .................................................................................................... 10 細(xì)格柵 .....................................................................................................11 沉砂池 .................................................................................................... 13 初沉池 .................................................................................................... 18 A2/O 生化反應(yīng)池 .................................................................................... 24 二沉池 .................................................................................................... 33 接觸消毒池 ............................................................................................ 39 3 污泥處理系統(tǒng) .................................................................................................. 41 遼寧工程技術(shù)大學(xué)畢業(yè)設(shè)計(jì)（論文） 污泥水分去除的意義和方法 ................................................................. 41 污泥濃縮池 ............................................................................................ 42 污泥脫水系統(tǒng) ........................................................................................ 44 污泥提升泵的選擇 ................................................................................ 44 污泥回流泵的選擇 ................................................................................ 45 4 污水深度處理系統(tǒng) .......................................................................................... 45 絮凝池 .................................................................................................... 45 沉淀池 .................................................................................................... 49 過濾池 .................................................................................................... 52 5 污水處理廠總體設(shè)置 ...................................................................................... 62 平面布置 ................................................................................................. 62 高程布置 ................................................................................................. 63 6 供配電系統(tǒng)設(shè)計(jì) .............................................................................................. 65 電源 ........................................................................................................ 66 配電系統(tǒng) ................................................................................................ 66 用電功率統(tǒng)計(jì)表 .................................................................................... 66 7 儀表控制系統(tǒng)設(shè)計(jì) .......................................................................................... 67 設(shè)計(jì)原則 ................................................................................................ 67 設(shè)計(jì)內(nèi)容 ................................................................................................ 67 8 勞動(dòng)定員 ......................................................................................................... 69 9 經(jīng)濟(jì)概預(yù)算 ...................................................................................................... 69 投資估算 ................................................................................................ 69 王雙： 6 萬噸 /天生活污水 A2/O 處理與回用工藝設(shè)計(jì) 項(xiàng)目總投資 ............................................................................................ 70 污水處理成本 ........................................................................................ 71 10 消防 .................................................................