靈寶市污水處理廠初步設計畢業設計論文(已修改)

　

【正文】 洛陽理工學院畢業設計（論文）I洛陽理工學院畢業設計（論文）靈寶市污水處理廠初步設計洛陽理工學院畢業設計（論文）II摘要根據根據洛陽理工學院土木工程系下達的設計任務，對靈寶市污水處理進行設計計算。經綜合考慮后，本設計主體處理構筑物采用氧化溝，經過處理后使污水達到所需水質要求。通過市政管網收集的污水在通過粗格柵去除大的懸浮雜質后，由提升泵站將污水提升到污水處理廠。在經過細格柵后，進入平流式沉砂池將污水中較大的無機顆粒去除。而后進入氧化溝，利用活性污泥對污水進行脫氮除磷，降低污水中的BOD、COD。處理后的污水進入接觸池消毒，達到排放標準。對氧化溝內產生的污泥首先進入濃縮池濃縮，在經帶式壓濾機壓濾脫水后外運填埋。設計中對整個處理流程的各主體構筑物如格柵、平流式沉砂池、氧化溝、接觸池等進行了詳細、系統的設計計算和說明。理論上給出了這個流程中BOD、COD、的去除率及脫氮除磷的效率。在泥路中，對濃縮池、脫水機進行設計計算和說明。再結合靈寶市當地的地形和設計規范，對污水處理廠進行平面布置和高程計算，從而系統的確定各處理構筑物的標高及布置。 污水經過各處理構筑物后，達標排放至農灌渠，從而緩解靈寶市的用水危機，并改善靈寶市的環境問題。關鍵詞：城市污水 改良型氧化溝 生物處理 脫氮除磷洛陽理工學院畢業設計（論文）IIIThe preliminary design in wastewater treatment plant of Lingbao cityAbstractAccording to the design mission in Department of Civil Engineering of the Luoyang College of science and technology, the calculation is carried out for the municipal sewage in Lingbao. After consideration, the triple oxidation ditch is adopted in this design。 the effluent is made to attain the discharge of the urban sewage.After removing the miscellaneous in municipal sewage which is collected by tube by the thick space grid. Then the municipal sewage is pumped to the plant. After passing the thin bar, the municipal sewage es into the sand sinking pond to take off the large inanic substance. Then entering to the oxidation ditch, getting rid of the nitrogen and the phosphor by activated sludge, at the same time BOD, COD is reduced. At last, it es into the contact pool to antiseptic, making the effluent be up to the standard of the discharge. Collected in the oxidation ditch, the mud is sent to thickener pond first, then it is pressed into piece by the straining dehydrate machine and carried outside.The major content of this design is about the calculation and introduction of main structures such as pump station, grille, desilting basin, contact pond, thickener pond, the oxidation ditch, sludge digestion, sludge impoundment in detail and systematically, which are parts of the procedure. The removal efficiency of BOD, COD, denitrification and phosphorus removal efficiency are given in theory. Level assign and vertical assign are done according to the landform of Lingbao and design specification.The effluent is discharged into channel after each processing structure. The environment of Lingbao has been improved, and it also alleviates the crisis of water. Key words: municipal sewage。 the meliorative oxidation ditch。 biological treatment。 removal the nitrogen and phosphor 洛陽理工學院畢業設計（論文）IV目錄前言 ......................................................................................................................1第 1章 設計任務及設計資料 ................................................................................2 設計概況 ...............................................................................................................................................2 設計任務與內容 ...................................................................................................................................2 設計原始資料 .......................................................................................................................................2 城市氣象資料 ...............................................................................................................................2 城市地形資料 ...............................................................................................................................2 設計規模 .......................................................................................................................................4 進出水水質 ...................................................................................................................................4第 2章 設計說明書 .........................................................................................5 處理程度的計算 ...................................................................................................................................5 BOD5的去除率為 ...........................................................................................................................5 CODcr的去除率為 ........................................................................................................................5 SS的去除率為 ..............................................................................................................................5 NH4N的去除率為 .........................................................................................................................5 TP的去除率為 ..............................................................................................................................5 城市污水處理工藝的選擇 ...................................................................................................................5 工藝流程的比較 ...........................................................................................................................6 工藝流程選擇 ...............................................................................................................................8 格柵和泵房 ...................................................................................................................................9 沉砂池的設計 .............................................................................................................................11 氧化溝的設計 .............................................................................................................................12 消毒劑的選擇 .....................................................................................................................................18 消毒工藝概述 .............................................................................................................................18 方案的確定 .................................................................................................................................18 接觸池的確定 ................