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題名 | Modeling of Sucrose Degradation in Synthetic Waste Water using a Tubular Reactor Immobilized with Aspergillus Niger NTIT 80=以固定化黑麴菌NTIT80之管型反應器降解合成廢水糖分之數學模式 |
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作者姓名(中文) | 王惠娥; 彭耀寰; | 書刊名 | 環境保護 |
卷期 | 20:1 1997.06[民86.06] |
頁次 | 頁91-105 |
分類號 | 445.46 |
關鍵詞 | 固定化; 反應器; 數學模式; 分散模式; 濕潤效應; 質傳; 熱傳; Immobilization; Reactor; Mathematical model; Dispersion model; Wetting efficiency; Mass transfer; Heat transfer; |
語文 | 英文(English) |
中文摘要 | 以分散模式(Dispersion model)探討管型反應器之理論始於Wehner及Wilhem(1958 年 ),而此間亦有不同之模式推導見諸於文獻中。然而此種隨機流態之分散模式並沒有得到 廣泛之應用。 環工界仍多樂於應用塞狀流模式 (Plug flow model) 或完全混合模式 (Perfect mixing model) 來設計活性污泥法系統。 本研究使用本研究室前已發展之固定化 黑麴菌 NTIT80 管型反應器,在不同之流率及流動型態下,探討其對合成廢水中之糖分降解 情形,以進一步驗證該模式之正確性, 使用 t-test 統計 (95% 自信度 ) 處理之結果證明 此一模式若能進一步加以修正,則頗有其應用性。實用上在得到精確的 Peclet 模數以及內 在反應速率常數 k 後,本研究並對其質傳, 以及濕潤效應加以修正,結果證明由該分散模 式亦可以得到精確的反應器設計模式。 |
英文摘要 | Using the Dispersion Model to describe the engineering aspects in a tubular reactor was originated by Wehner and Wilhem (1958), since then much of literature have been cited, however application of this model has not been widely accepted. In contrast to this, the Plug Flow Model and The Perfect Mixing Model are gaining more ploypularity in the field of environmental engineering. This work presents a modification of The Dispersion Model: using an immobilized Aspergillus niger NTIT 80/soft polyurethane foam tubular reactor to investigate the sugar degradation rate at different flow rates, hence different Peclet numbers were measured. Data treated with t-test (C.L. 95%) showed that the model accounts only an approximation (Deviation 25.95%). While correction of the model with the external wetting efficiency fe (0.786), which has been weighted with the solvent-support interaction parameter (0.55) by Peng's modification of Mills and Dudukovic et. al., vielded a deviation of only 5.90%. Hence Peng's Modification illustrates results being fairly consistent with the experimentals. |
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