臺灣博碩士論文加值系統

本研究嘗試以活性碳迷你管柱實驗,評估粒狀活性碳吸附水中特定有
機汙染物質,背景有機物質的效能,即評估在各種參數(初使濃度,空床接觸
時間,管柱形式,競爭吸附等)條件下,不同參數對活性碳迷你管柱吸附水中
背景有機物質,特定有機汙染物質之影響.背景有 機物係以非氣提性有機
碳(NPOC)的參數來代表,特定汙染物選擇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 於初使濃度,管柱形式等在影響貫穿曲線的表
現上較不明顯.在特定有機汙染物方面,活性 碳對2,4-二氯酚的吸附效果
很好,於背景有機物(以聚乙二醇代替,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2,4-二氯酚初使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.

This 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.