【正文】 第 1 頁 摘 要 本次畢業(yè)設(shè)計(jì)的題目為武漢某經(jīng)濟(jì)開發(fā)區(qū)污水處理廠設(shè)計(jì) — OA/2 工藝。主要任務(wù)是完成該經(jīng)濟(jì)開發(fā)區(qū)排水管網(wǎng)布置及污水處理廠初步設(shè)計(jì)和單項(xiàng)處理構(gòu)筑物施工圖設(shè)計(jì)。 其中初步設(shè)計(jì)要完成設(shè)計(jì)說明書一份、污水處理廠總平面圖一張及污水處理廠污水與污泥高程圖一張；單項(xiàng)處理構(gòu)筑物施工圖設(shè)計(jì)中，主要是完成 OA/2平面圖和剖面圖及部分大樣圖。 該污水處理廠工程，近期規(guī)模為 5萬噸 /日。 該污水廠的污水處理流程為：從泵房到沉砂池，進(jìn)入 OA/2 反應(yīng)池 ，進(jìn)入輻流式二次沉淀池，進(jìn)入接觸池，再進(jìn)入巴氏計(jì)量槽，最后出水；污泥的流程為：從 OA/2 反應(yīng)池 排出的剩余污泥進(jìn)入集泥配水井，再由污水泵送入濃縮池，再進(jìn)入儲(chǔ)泥池，最后外運(yùn)處置。 污水處理廠處理后的出水優(yōu)于國家污水綜合排放標(biāo)準(zhǔn) (GB89781996)中的一級(jí)標(biāo)準(zhǔn)。 所選擇的 OA/2 工藝，具有良好的脫氮除磷功能。 關(guān)鍵詞： OA/2 工藝；脫氮除磷； 第 2 頁 ABSTRACT The topic of this graduate design is about the design of the sewage disposal plant in the development area of economy and techonology in wuhan City. The technics of the plant is the AnaerobicAnoxicOxic. The main task is the primary design of the plant and the shop drawing of the oxidation ditch pond. The task of the primary design is that a design book、 a plan of the plant、 the high drawing of the disposal of sludge and sewage。in the single disposal build design,the harvest is that the section plane drawing、 the plan and some part magnifying drawings of the AnaerobicAnoxicOxic. The construction of this plant is 50000 steres per day. The process of the sewage in the plant is that:The sewage runs from pump house to sand sinking pond,enters the pond of sedimentation tank,enters disinfection pond,then enters calculation trough,at last lets process of the sludge is that: Surplus sludge from the sedimentation tank enters concentration pond,enters digestion pong,then it is dehydrated,at last it is carried out of the plant. The outlet water of the plant meets the level one of the National Sewage Discharge Standard (GB89781996). There is an AnaerobicAnoxicOxic more than the craft of SBR in the craft of CASS. it prevents sludge from eapending,promots releasing phosphorus ,and strengthens antinitration. Key words： The AnaerobicAnoxicOxic。 Taking off the nitrogen and the phosphorus。 第 1 頁 目 錄 摘 要 ............................................................................................................................1 ABSTRACT ....................................................................................................................2 第一部分 .........................................................................................................................1 第 1章 設(shè)計(jì)概論 .............................................................................................................1 ............................................................................................................1 開發(fā)區(qū)概況及自然條件 ......................................................................................1 開發(fā)區(qū)概況 .............................................................................................1 開發(fā)區(qū)自然條件 ......................................................................................3 設(shè)計(jì)水量與水質(zhì) ......................................................................................4 第 2章 總體設(shè)計(jì) .............................................................................................................5 ............................................................................................................5 合流制排水系統(tǒng) ......................................................................................5 分流制排水系統(tǒng) ......................................................................................6 排水體制選擇 ..........................................................................................7 污水處理廠設(shè)計(jì)規(guī)模 ..........................................................................................8 第 3章 污水處理廠設(shè)計(jì) ..................................................................................................8 污水處理廠址選擇 .............................................................................................8 污水污泥處理工藝選擇 ......................................................................................9 ........................................................................................................9 、污泥處理工藝選擇 .........................................................................9 ................................................................................. 17 進(jìn)水泵房 ............................................................................................... 17 細(xì)格柵和沉砂池 .................................................................................... 18 A2/O池 .................................................................................................. 18 鼓風(fēng)機(jī)房 ............................................................................................... 19 二次沉淀池 ........................................................................................... 19 配水集泥井 ........................................................................................... 20 污泥濃縮池 ........................................................................................... 20 脫水車間 ............................................................................................... 20 第 4章 污水處理廠總體布置 ......................................................................................... 21 ............................................................................................... 21 ....................................................................... 21 污水處理廠的平面布置 .......................................................................... 23 ............................................................................................ 24 .......................................................................... 24 .......................................................................... 25 第 5章 勞動(dòng)定員及其附屬構(gòu)筑物 .................................................