【正文】 osphorus are also need to have a certain removal. A2O denitrification and phosphorus removal at the same time in the process of the anic matter, the process is the most simple, always similar hydraulic retention time is less than other processes, the alternating anaerobic anoxic aerobic running, bacteria will not thrive, SVI generally less than 100, advantages of sludge bulking will not occur. KEY WORDS: Wastewater Treatment， A2/O， Nitrogen and phosphorus removal某城鎮(zhèn)污水處理廠初步設(shè)計(jì) 洛陽(yáng)理工學(xué)院畢業(yè)設(shè)計(jì)（論文） V 目 錄 前 言 ....................................................................................................... 1 第 1 章 設(shè)計(jì)概論 .................................................................................... 3 設(shè)計(jì)依據(jù)和任務(wù) ........................................................................ 3 原始依據(jù) ........................................................................... 3 設(shè)計(jì)內(nèi)容 .......................................................................... 3 設(shè)計(jì)要求 .......................................................................... 4 第 2 章 工藝流程圖的確定 .................................................................... 5 工藝流程的方案比較 ............................................................... 5 SBR 工藝 .......................................................................... 5 氧化溝工藝 ...................................................................... 6 A2/O 工藝 .......................................................................... 7 工藝流程的選擇 ........................................................................ 8 污水處理工藝 ................................................................. 9 污泥處理工藝 .................................................................11 第 3 章 主要構(gòu)筑物計(jì)算 ...................................................................... 13 污水主干管 .............................................................................. 13 設(shè)計(jì)參數(shù) ........................................................................ 13 泵前中格柵 .................................................................... 13 污水提升泵房 .......................................................................... 15 泵后細(xì)格柵 ............................................................................... 17 沉砂池 ...................................................................................... 18 初沉池 ...................................................................................... 20 A2/O 工藝 .................................................................................. 22 曝氣系統(tǒng)設(shè)計(jì)計(jì)算 ................................................................... 25 二沉池 ....................................................................................... 28 接觸池與加氯間 ....................................................................... 30 污泥泵房 ................................................................................. 31 污泥濃縮池 ............................................................................. 32 某城鎮(zhèn)污水處理廠初步設(shè)計(jì) 洛陽(yáng)理工學(xué)院畢業(yè)設(shè)計(jì)（論文） VI 貯泥池 ..................................................................................... 33 脫水間 ..................................................................................... 33 第 4 章平面及高程布置 ........................................................................ 35 污水廠的平面布置 ................................................................... 35 平面布置的一般原則 .................................................... 35 平面布置的具體內(nèi)容 .................................................... 35 污水廠的高程布置 ................................................................... 36 高程布置原則 ............................................................... 36 高程布置的注意事項(xiàng) ................................................... 36 高程布置方法 ............................................................... 37 高程布置計(jì)算 ................................................................ 38 污水提升泵靜揚(yáng)程校核 ................................................ 40 污泥高程設(shè)計(jì)計(jì)算 ........................................................ 41 結(jié) 論 ..................................................................................................... 42 謝 辭 ....................................................................................................... 43 參考文獻(xiàn) ................................................................................................. 44 外文資料翻譯 ........................................................................................ 45 某城鎮(zhèn)污水處理廠初步設(shè)計(jì) 洛陽(yáng)理工學(xué)院畢業(yè)設(shè)計(jì)（論文） 1 前 言 本次畢業(yè)設(shè)計(jì)的課題是河南省靈寶市污水處理廠初步設(shè)計(jì)。 A2/O 在同時(shí)脫氮除磷去除有機(jī)物的的工藝中，該工藝流程最為簡(jiǎn)單，總水力停留時(shí)間也少于同類其他工藝，在厭氧 — 缺氧 — 好氧交替運(yùn)行下，絲菌不會(huì)大量繁殖， SVI 一般小于 100，不會(huì)發(fā)生污泥膨脹等優(yōu)點(diǎn)。污水通過(guò)治理可以緩解和減輕水環(huán)境污染，緩解水資源的供需矛盾，為靈寶市的經(jīng)濟(jì)文化的發(fā)展創(chuàng)造有利條件。這些新工藝有的已在國(guó)內(nèi)外實(shí)際工程中得到了良好的應(yīng)用，有的已顯示出其良好的應(yīng)用發(fā)展前景、得到廣大的研究者和工程技術(shù)人員的關(guān)注并正在得到不斷深入的研究，他們的共同特點(diǎn)是高效、穩(wěn)定、節(jié)能，并具有對(duì)污染物去除的多功能性，大多具有脫氮除磷等深度處理的良好效能，并正朝自動(dòng)化控制的方向發(fā)展。但是，水環(huán)境中的淡水資源卻很少，僅占總量的 %，而目前能供人類直接取用的淡水資源僅占 %。加之自然水源的季節(jié)變化和地區(qū)差異，以及自然水體遭到的普遍污染，致使可能直接取用的優(yōu)質(zhì)水量日益短缺，難以滿足人們生活和工農(nóng)業(yè)生產(chǎn)日益增長(zhǎng)的需求，因此保護(hù)和珍惜水資源，是整個(gè)社會(huì)的共同職責(zé)。 近年來(lái)，隨著靈寶市經(jīng)濟(jì)不斷發(fā)展，人口和工業(yè)產(chǎn)值也隨之增加，生活用水和工業(yè)用水的需求也急劇擴(kuò)大，如此必然引起污水量的增加，一系列水環(huán)境問(wèn)題將日益 突出。工程的興建，一方面為人們提供優(yōu)質(zhì)的生活污水，提高人們的生活質(zhì)量和健康水平；另一方面是工業(yè)用水水質(zhì)得到保障。 某城鎮(zhèn)污水處理廠初步設(shè)計(jì) 洛陽(yáng)理工學(xué)院畢業(yè)設(shè)計(jì)（論文） II 關(guān)鍵詞： 污水處理， A2/O， 脫氮除磷 某城鎮(zhèn)污水處理廠初步設(shè)計(jì) 洛陽(yáng)理工學(xué)院畢業(yè)設(shè)計(jì)（論文） III The Process Design for LingBao Wastewater Treatment Plant ABSTRACT Water is the source of human life, conceived and nourish the all living things on the earth, and from all aspects for human services. However, fresh water resources in water environment is rarely, accounts for only % of the total, and can now directly access for human accounted for only % of freshwater resources. Combined with the seasonal variation and regional differences of natural water sources, as well as the general pollution of natural water bodies, and can directly access the water quality of increasingly scarce, hard to meet the needs