【正文】 of untreated sewage directly into the water cause environmental pollution. Industrial waste water after treatment is reduced in recent years, continued to grow, but city life sewage accounted for over 51% of the water pollution. This design is about the sewage treatment plant in Guangzhou, huangge town . The construction of this plant is 30000 m3/d. The main origin of the sewage is the sanitary sewage and the industrial waste. The main polluting is the NH3N, BOD, COD. It is suitable to use the biochemistry processing method. After the parison of the plan, the Oxidation Ditch craft was chosen as the process. The elimination rate of the NH3N, BOD, COD respectively achieved %, %, %. The outlet water of the treatment meets the level two of the National Sewage Discharge Standard (GB89781996). The mixed liquor of the sewage and the activated sludge are sporting unceasingly in the oxidation ditch. It is good to exclude BOD、 COD and take off the nitrogen and the phosphorus. Additionally, the simple processing, the few buildings, the varied structure, the nimble movement, and the good stability of the movement, the province initial cost, the low operating cost, the convenient operation and management, the good quality of the letout water are also the places which the oxidize ditch is better than the other technology. Key Words： Sewage treatment, Oxidation ditch, Niteogen and Phosphorus Removal, Biochemical Oxygen Demand, Chemical Oxygen Demand 華東交通大學(xué)理工學(xué)院畢業(yè)設(shè)計(jì)（論文） 目 錄 摘 要 .............................................................................................................................................. I Abstract ........................................................................................................................................... II 目 錄 ............................................................................................................................................III 引 言 ............................................................................................................................................. 1 第 1 章 概 述 ............................................................................................................................... 2 設(shè)計(jì)任務(wù)和設(shè)計(jì)依據(jù) ......................................................................................................... 2 設(shè)計(jì)任務(wù) ..................................................................................................................... 2 設(shè)計(jì)依據(jù) ..................................................................................................................... 2 設(shè)計(jì)要求 ............................................................................................................................. 2 污水處理廠設(shè)計(jì)原則 ................................................................................................. 2 污水處理工程運(yùn)行過(guò)程中應(yīng)遵循的原則 ................................................................. 3 工程概況 ............................................................................................................................. 3 工程環(huán)境概況 .............................................................................................................. 3 選題的依據(jù)及意義 ..................................................................................................... 4 設(shè)計(jì)研究?jī)?nèi)容 ..................................................................................................................... 4 污水處理廠設(shè)計(jì)規(guī)模 .................................................................................................. 4 進(jìn)水水質(zhì) ..................................................................................................................... 4 處理程度的計(jì)算 ......................................................................................................... 5 設(shè)計(jì)水處理工藝流程 ...................................................................................................... 5 工藝流程的比較 ........................................................................................................... 5 工藝流程的選擇 ......................................................................................................... 7 第 2 章 主要污水處理構(gòu)筑物說(shuō)明 ............................................................................................... 8 中格柵和提升泵房 ............................................................................................................. 8 設(shè)計(jì)參數(shù) ..................................................................................................................... 8 細(xì)格柵和沉砂池 ................................................................................................................. 9 細(xì)格柵運(yùn)行參數(shù) .......................................................................................................... 9 沉砂池設(shè)計(jì) .................................................................................................................. 9 厭氧池 ............................................................................................................................... 10 設(shè)計(jì)參數(shù) ................................................................................................................... 10 吳波：廣州黃閣鎮(zhèn)污水處理廠工程設(shè)計(jì) IV 厭氧池尺寸 ............................................................................................................... 10 氧化溝 ............................................................................................................................... 10 設(shè)計(jì)參數(shù) ................................................................................................................... 10 氧化溝尺寸 ............................................................................................................... 10 二沉池 ............................................................................................................................... 11 設(shè)計(jì)參數(shù) ..........