郭俊賢－以迷你管柱評估活性碳吸附水中有機物之可行性研究
Using RSSCTs to assess the avaibility of GAC adsorption of organic matter in water
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本研究嘗試以活性迷你管柱實驗，評估粒狀活性碳吸附水中特定有機污染物質、背景有機物質的效能，即評估在各種參數（初始濃度、空床接觸時間、管柱形式、競爭吸附等）條件下，不同參數對活性炭迷你管柱吸附水中背景有機物直、特定有機污染物質之影響。背景有機物質係以非氣提性有機碳（NPOC）的參數來代表，特定污染物選擇 2,4-二氯酚，用GC/ECD量測。

實驗結果顯示，對比公式在迷你管柱的使用上確實可行，在活性碳吸附自來水廠水中背景有機物方面，只有原水的特性、空床接觸時間（EBCT）等因素會影響貫穿曲線的表現，至於初始濃度、管柱形式等在影響貫穿曲線上的表現較不明顯。在特定有機物方面，活性碳對 2,4-二氯酚的吸附效果很好，於背景有機物（以聚氯乙醇代替，量測NPOC）存在的情況下，活性碳對 2,4-二氯酚的吸附容量會因為背景有機物質的競爭吸附效應而降低，且不同的2,4-二氯酚初始濃度亦會影響貫穿曲線的表現和活性碳對 2,4-二氯酚的吸附容量。

his study uses rapid small scale column test(RSSCT) to evaluate the suitability of activated carbon adsorption for the control of 2,4-dichloro -phenol (2,4-DCP) and background organic matter (BOM) in drinking water.The facters considered in RSSCT experiments include the initial concentrations of the 2,4-DCP and BOM, empty bed contact time (EBCT), type of the columns and the competitive adsorption between 2,4-DCP and BOM. The results showed thst the scaled equation used to design the RSSCT can effectively correlate the breakthrough curves of the 2,4-DCP and BOM between the smsll and the large columns. The breakthrough profile of the RSSCT was affected by the water quality and EBCT,but not affected by the type of the columns and initial concentrations of the 2,4-DCP and BOM. Competitive adsorption test between 2,4-DCP and BOM showed that the presence of the BOM reduced the adsorption capacity of the 2,4-DCP, however, the presence of 2,4-DCP can not affect the breakthrough behavior of the BOM in the tested concentrations.