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研究生: 沈裕智
Y-Jr Shen
論文名稱: 變動負荷特性與殘留基質對缺氧釋磷攝磷現象之探討
The Effect of Various Loading and Residual Substrate on anoxic Phosphate-release/uptake Characteristics
指導教授: 歐陽嶠暉
Chaio-Fuei Ouyang
口試委員:
學位類別: 碩士
Master
系所名稱: 工學院 - 環境工程研究所
Graduate Institute of Environmental Engineering
畢業學年度: 88
語文別: 中文
論文頁數: 110
中文關鍵詞: 脫硝除磷菌突變負荷營養鹽去除程序脫硝攝磷脫硝釋磷
外文關鍵詞: Denitrifying phosphate accumulating organisms, shock loading, biological nutrient removal processes, denitrification/ phosphate uptake, denitrification/ phosphate release
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  • 因此,本研究將TNCU-I程序操作於SRT=10天,變動進流基質濃度以觀察TNCU-I程序對突變負荷的忍受能力,並設計一系列之批次實驗,以TNCU-I程序之活性污泥探討在不同內部碳源濃度的條件下,有不同濃度外部殘留碳源存在之缺氧/好氧的狀態下,微生物之缺氧脫硝釋磷/脫硝攝磷及好氧釋磷/攝磷之反應行為。
    由實驗結果顯示,TNCU-I程序在各種不同的變動負荷下,對COD都能維持在相當高的去除率,而N、P的去除,雖沒有如去除有機碳那麼穩定,不過也都能快速地恢復穩定,此點證實TNCU-I程序對變動負荷確實具有較高的處理穩定性。
    在不同內部碳源濃度的條件下,有外部殘留碳源存在時,在缺氧/好氧的狀態下,由微生物之缺氧脫硝釋磷/脫硝攝磷及好氧釋磷/攝磷之批次實驗,可看出就相同內部碳源及外部殘留碳源的情況下,利用O2當電子接受者的比攝磷率比利用NO3當電子接受者的比攝磷率高。且攝磷反應受電子接受者的影響比受外部殘留COD濃度高低的影響還明顯。整體而言,內部碳源濃度越高,外部殘留COD濃度越低,越傾向於攝磷。
    在相同的內部碳源濃度情況下,外部殘留碳源濃度越高,其比脫硝率就越高。且在相同的外部殘留碳源濃度情況下,內部碳源濃度越高,其比脫硝率也越高。整體而言,不論內部碳源越高或外部碳源越高,其比脫硝率都會越高。



    Thus, our group developed a novel process (TNCU-I process) that added a RBC in the aerobic tank of the traditional A2O process. The sludge retention time of the nitrifier can be extended on the RBC to reduce the sludge retention time of activated sludge to solve the conflict the SRT between PAO and nitrifier. Consequently, the anoxic zone of the activated sludge can increased to enhance the present of denitrifying phosphate accumulating organisms (DNPAO) to solve the competition of carbon source between de-phosphate and denitrogen. Additionally, the tolerance ability of shock loading could be increased due to the present of RBC.
    In light of above discussion, this study investigated the influence of shock loading on the performance of TNCU-I. Additionally, the anoxic/aerobic phosph-ate uptake/release reactions under various initial COD and residue COD conditions of TNCU-I process were also performed by a series of batch experiments.
    The results revealed that the TNCU-I process showed excellent performance of COD removal under various shock loading. Although the performance of nitrogen and phosphate removal was not so good as COD, it could return to the steady state rapidly under various shock loading. This improved that the TNCU-I process showed good stability of treating shock loading influent.
    The results of batch experiments showed that the potential of phosphate uptake was dynamic. It increased with the initial COD increased, the initial PHA increased, and the residue COD decreased. Furthermore, the phosphate uptake/release influenced by electron acceptor (oxygen of nitrate) was more significantly than residue COD concentrations. Additionally, the specific denitrification rate increased with the initial COD and the residue COD increased.

    第一章 前言.................................................1 1.1 研究緣起................................................1 1.2 研究目的與研究重點......................................3 第二章 文獻回顧.............................................4 2.1 生物脫氮除磷之基本理論..................................4 2.1.1 生物脫氮 …………………………………………………4 2.1.2 生物除磷 …………………………………………………7 2.1.3 併同除碳、氮、磷之處理程序 …………………………11 2.1.4 旋轉生物圓盤(RBC)之基本原理 ……………………17 2.2 脫硝釋磷 / 脫硝攝磷之探討..............................21 2.3 突變負荷之特性.........................................28 第三章 實驗設備與方法......................................30 3.1 模型廠實驗.............................................30 3.1.1 TNCU-I模廠 ……………………………………………30 3.1.2 模型廠實驗計畫 ………………………………………32 3.2 批次實驗...............................................33 3.2.1活性污泥缺氧下脫硝釋磷/脫硝攝磷批次實驗 ………34 3.2.2活性污泥好氧下釋磷/攝磷批次實驗 …………………34 3.3 分析方法與設備.........................................37 3.3.1 分析方法 ……………………………………………37 3.3.2 分析設備 ………………………………………………37 第四章 結果與討論..........................................39 4.1 SRT=10天操作下TNCU-I程序之處理特性.....................39 4.2 變動負荷...............................................42 4.2.1 當進流COD=500 mg/L時變動之情形 ………………42 4.2.2 當進流COD=400 mg/L時變動之情形 ………………44 4.2.3 當進流COD=300 mg/L時之情形 ……………………44 4.2.4 當進流COD=200 mg/L時變動之情形 ………………47 4.2.5 當進流COD=100 mg/L時變動之情形 ………………49 4.2.6 突變負荷綜合討論 …………………………………51 4.3 外部殘留COD對好氧/缺氧狀態下釋磷/攝磷之影響............55 4.3.1 初始COD=300 mg/L時污泥釋磷/攝磷之情形 ………55 4.3.2 初始COD=200 mg/L時污泥釋磷/攝磷之情形 ………73 4.3.3 初始COD=100 mg/L時污泥釋磷/攝磷之情形 ………88 4.3.4 批次實驗綜合討論 ……………………………………98 第五章 結論與建議.........................................102 5.1 結論..................................................102 5.2 建議..................................................103 參考文獻..................................................104 附錄 …………………………………………………………………109

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