【正文】 Λァあ＊大學本科生畢業(yè)設(shè)計（論文） i 摘 要 本設(shè)計為武漢市第八污水處理廠工藝設(shè)計。 該設(shè)計的生活污水流量為： 150000 m3 /d，進水水質(zhì)為： BOD5 =250mg/l，COD=550mg/l， SS=260mg/l。處理后要求達到的水質(zhì)標準為： BOD5 =20mg/l，COD=80mg/l， SS=20mg/l。設(shè)計內(nèi)容主要包括兩大部分，即污水處理部分；污泥處理部分。設(shè)計的核心工藝為 AB 法，經(jīng)過處理的污水完全可以達到需要的處理程度。 通過比較選擇確定 AB 法為最佳工藝。選定工藝流程后，按照工藝流程的順序進行構(gòu)筑物的設(shè)計計算，在完成污水和 污泥處理構(gòu)筑物的設(shè)計計算后 ,根據(jù)平面布置的原則 ,綜合考慮各方面因素進行了污水廠的平面布置。據(jù)污水的流量對連接各構(gòu)筑物的管渠進行了選徑、確定流速以及水力坡降 ,然后進行了水力損失計算。據(jù)水力損失計算對污水和污泥高程進行了計算和布置。最后完成了對平面圖、高程圖及各種主要的構(gòu)筑物圖的繪制。 污泥處理中、沉淀池剩余污泥則經(jīng)重力自流至重力濃縮池。以降低污泥的含水率，減小污泥體積。泥經(jīng)濃縮后 ,含水率尚還大 ,體積仍很大。為了綜合利用和最終處置 ,需對污泥進行干化和脫水處理。 關(guān)鍵詞： AB 法、污水處理 Λァあ＊大學本科生畢業(yè)設(shè)計（論文） ii ABSTRACT This is a design about the sewage treatment plant of wuhan city. The flow of sanitary sewage that should be designed is: 150000 m3 / d, Inflow water quality: BOD5=250mg/l, COD=550mg/l, SS=260mg/l. The standard quality of water treated is: BOD5=20mg/l, COD=80mg/l, SS=20mg/l. Design content mainly includes two parts: the sewage disposal part, Sludge treatment. The centre technology of the design method is Adsorption Biodegradation. By paring the choice AB method for the optimum process is determined. After selected process flow, in accordance with the order of the process flow for structure design and calculation, in finishing the design and calculation of sewage and sludge treatment structures, based on the principle of plane layout, prehensive consider all aspects of factors in the sewage plant layout. According to the sewage flow tube drainage of connecting the structures of the diameter, velocity and hydraulic gradient, for sure, and then the hydraulic loss calculation. According to the hydraulic loss calculation of sewage and sludge elevation calculation and layout. Finally pleted the plan, elevation drawing and all kinds of the main structures of drawing. In the sludge treatment, residual sludge sedimentation tank by gravity artesian to gravity concentration pool. To reduce the moisture content of sludge, reduce sludge volume. Mud after enrichment, the moisture content is also big, the volume is still very big. For prehensive utilization and final disposal, drying and dehydration of sludge treatment. Keywords: AB, sewage disposal Λァあ＊大學本科生畢業(yè)設(shè)計（論文） iii 目 錄 摘 要 ..................................................................................................................................... i ABSTRACT .............................................................................................................................. ii 第一章 前 言 ................................................................................................................... 1 第二章 設(shè)計基本資料 ..................................................................................................... 2 、原始資料 .................................................................................................................... 2 設(shè)計內(nèi)容 ....................................................................................................................... 3 第三章 污水處理常見方法簡介及方案比選 ........................................................... 6 污水處理常見方法簡介 ............................................................................................ 6 深井曝氣活性污泥法 ........................................................................................ 6 AB 法 ............................................................................................................... 6 氧化溝法 .......................................................................................................... 7 SBR 法 ................................................................................................................ 8 方 案比選 .................................................................................................................... 8 SBR 法在工藝方面的主要特征 ..................................................................... 8 AB 法在工藝方面的主要特征 ....................................................................... 9 AB 法的生產(chǎn)原理 ............................................................................................... 9 構(gòu)筑物的選擇 ............................................................................................................ 9 格柵的選擇 ........................................................................................................ 9 沉砂池的選擇 .................................................................................................. 10 沉淀池的選擇 .................................................................................................. 10 、污水處理程度的確定 .............................................................................................. 12 污水的 SS 處理程度計算 ................................................................................ 12 污水的 BOD5處理程度計算 ........................................................................... 13 污水的 COD 處理程度的計算 ........................................................................ 13 第四章 主要處理構(gòu)筑物的設(shè)計計算 ....................................................................... 15 粗格柵的設(shè)計 ............................................................................................................ 15 設(shè)計參數(shù) .......................................................................................................... 15 格柵的間隙數(shù) .................................................................................................. 15 格柵槽 寬度 ...................................................................................................... 15 通過格柵的水頭損失 ...................................................................................... 16 Λァあ＊大學本科生畢業(yè)設(shè)計（論文） iv 柵后明渠的總高度 .......................................................................................... 16 格柵槽總長度 .................................................................................................. 17