頁籤選單縮合
題 名 | 利用延長曝氣法處理ABS廢水之成效研究=Performance of Extended Aeration Process for the Treatment of ABS Wastewater |
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作 者 | 張家源; 張錦松; 甘鳳琴; 沈麟明; 林陳彥; | 書刊名 | 嘉南學報. 科技類 |
卷 期 | 31 民94.12 |
頁 次 | 頁125-135 |
分類號 | 445.463 |
關鍵詞 | ABS樹脂廢水; 延長曝氣法; 水力停留時間; 化學需氧量; 生化需氧量; 濁度; ABS wastewater; Extended aeration process; HRT; COD; BOD[904e]; Turbidity; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究以延長曝氣法(Extended aeration process)處理實廠ABS樹脂廢水,系統控制條件SRT(Sludge retention time,SRT)為30天、曝氣控制5 L/min,主要探討其不同水力停留時間(hydraulic retention time,HRT)為1、1.5及2天控制下,處理系統對於化學需氧量(Chemical oxygen demand,COD)、生化需氧量(Biochemical oxygen demand,BOD5)、濁度(Turbidity)之處理效能,以及生物槽內的微生物生長情況,並且進一步討論各HRT控制下的變化狀態。研究結果指出,延長曝氣法在HRT為2天時,係為最佳操作條件,其生物槽內SS濃度範圍3200~4100 mg/L,而COD去除率為91%、BOD5去除率為92%、濁度去除率約90%。而當HRT縮短至1.5天及1天時,雖可提高系統內SS的增長,但其污泥的VSS/SS比值性質趨於無機性,當HRT操作為1天時,出流水濁度去除不良,且呈現多次的污泥洗出的現象。由研究結果顯示,在固定反應槽及沉澱槽體積、溫度、曝氣量的條件下,HRT的縮短,雖可提高SS濃度,但其VSS/SS值並無法保持穩定,且HRT的縮短會影響生物槽內的膠羽特性,對於沉澱槽的固液分離效能有顯著的不利影響,且探討其處理效能時,要監測觀察其出流水品質、生物槽內微生物生長狀態以及沉澱池的固液分離效果,才是完整的處理效能層面之探討。 |
英文摘要 | In this study, a laboratory scale extened aeration process was used for the treatment of ABS (Acrylonitrile-Butadiene-Styrene) wastewater. SRT (sludge retention time) was 30 days and aeration rate was controlled at 5 L/min. The purpose of this study was to know the performances of this extended aeration process for the removal of COD, BOD[8fa3] and turbidity under the HRT (hydraulic retention time) conditions of 1、1.5 and 2 days, respectively. The results showed that the optimal HRT was 2 days for this system. Under this HRT condition, the concentration of MLSS in the reactor was in the range of 3200 of 4100 mg/L. In addition, the removal of COD, BOD[8fa3] and turbidity was 91%, 92% and 90%, respectively. Lower HRT values showed higher SS values in the reactor. However, lower VSS/SS ratios and lower turbidity removals were obtained in the condition of short HRT. |
本系統中英文摘要資訊取自各篇刊載內容。