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日處理5萬m3AAO污水處理設計設計+CAD圖紙

時間:2019-06-14 23:19來源:畢業論文
處理流量為5萬 的污水處理廠,其污水處理工藝選擇AAO工藝。A2/O工藝亦稱A-A-O工藝,是英文Anaerobic-Anoxic-Oxic第一個字母的簡稱(生物脫氮除磷)。按照實質意義來說,本工藝稱為厭氧-缺

總說明:眾所周知,環境保護是我國基本的國策之一,而水環境的保護更是當前環境保護的重點。水是一直十分重要的不可替代資源,是人類社會發展的堅實基礎。從某種意義上講,水資源的質量比數量更重要。因為只有符合一定質量標準的水才對社會有意義。所以,城市污水治理已經成當前迫切需要解決的問題之一,也是我們需引起重視和進行研究的問題之一。36264
    本次的畢業設計的是一個處理流量為5萬 的污水處理廠,其污水處理工藝選擇AAO工藝。A2/O工藝亦稱A-A-O工藝,是英文Anaerobic-Anoxic-Oxic第一個字母的簡稱(生物脫氮除磷)。按照實質意義來說,本工藝稱為厭氧-缺氧-好氧法生物脫氮除磷工藝的簡稱。A2/O工藝由于不同的環境條件,不同功能的微生物群落的有機配合,加之厭氧、缺氧的條件下,部分的不可生物降解的有機物能被開環或斷鏈,使得N、P、有機碳被同時去除,并提高對不可降解有機物的去除效果。
    本次設計的流程主要由格柵、隔油池、集水井、泵房、沉砂池、初沉池、A2/O反應池、二沉池、回流污泥泵房、污泥濃縮池、儲泥池、污泥脫水間、紫外消毒池等組成。
為了保護生活環境,防止水環境污染、海洋污染,設計的出水引入稀釋能力較小的河湖和作為一般回用水用途,設計的污水處理廠出水水質執行城市污水排放一級A標準:BOD5≤20mg/L,COD≤60 mg/L,SS≤20mg/L,氨氮≤15mg/L,磷酸鹽(以P計)≤0.5mg/L。
    本次設計根據《地表水環境質量標準》,《污水綜合排放標準》,《城市污水處理廠污泥排放標準》,《室外給水設計規范》,《室外排水設計規范》,《城市污水處理工程項目建設標準》對構筑物、高程、廠區面積等,找到正確的方法進行計算,進行合理設計,從而達到污水設計的全部要求。 源`自*六)維[論*文'網www.mmeqir.tw
畢業論文關鍵字:城市污水   A2/O工藝   工藝流程   國家出水標準
A city daily processing 50000 m3AAO Wastewater Treatment Design Design General Information
General information As we all know, environmental protection is one of China's basic national policy, and to protect the water environment is the focus of current environmental protection. Water, as an irreplaceable resource for human need, is an important pillar of social 
sustainable development. In a sense, the quality of water is more important than quantity. Because only meet certain water quality standards fishes social sense. Therefore, the city sewage treatment has become one of the urgent need to address the issue, but also we need to pay attention and be one of the issues studied.
he design is a city of a sewage treatment plant, the process flow of 50,000, by using AAO wastewater treatment process on sewage treatment. A2 / O process known as AAO process, is the English Anaerobic-Anoxic-Oxic first letter abbreviation (BNR). In accordance with the substance of sense, this process is called anaerobic - anoxic - aerobic biological nutrient removal process for short. A2 / O process the organic with different environmental conditions, different functions of microbial communities, coupled with anaerobic, anoxic conditions, the non-biological degradation of organic matter that can be part of an open-loop or scission, making N, P, organic At the same time the carbon is removed, and to improve the non-biodegradable organics removal.
The process design consists of a grid, grease traps, sumps, pumping stations, grit chamber, primary sedimentation tank, A2 / O reaction tank, secondary sedimentation tank, return sludge pumping station, sludge thickener, storage mud pool, the sludge dewatering, ultraviolet disinfection tank and other components.
To protect the environment, prevent water pollution, marine pollution, the introduction of the design of water dilution capacity of smaller lakes and reuse water for general purposes, the design of sewage treatment plant effluent quality implementation of city sewage discharge an A standard: BOD5≤20mg / L, COD≤60 mg / L, SS≤20mg / L, ammonia ≤15mg / L, phosphate (as P) ≤0.5mg / L. 日處理5萬m3AAO污水處理設計設計+CAD圖紙:http://www.mmeqir.tw/huaxue/20190614/34632.html
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