Use of ATR/FTIR spectrometry to study fouling of microfiltration membranes by natural waters
Use of ATR/FTIR spectrometry to study fouling of microfiltration membranes by natural waters
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DOI：
10.1016/s0011-9164(02)00545-3
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发表时间：
2002-09-10
期刊：
影响因子：
9.9
通讯作者：
Clark, MM
中科院分区：
文献类型：
--
作者：
Howe, KJ;Ishida, KP;Clark, MM
dd衰减全反射（ATR）傅里叶变换红外（FTIR）光谱法提供了深入了解两个北美表面沃茨过滤后聚丙烯微滤膜上沉积物的化学性质。污染物的光谱很容易与膜材料的光谱区分开来。结果没有显示出在污垢中存在羧酸、羧酸盐、酚或羟基官能团的有力证据，尽管这些官能团在天然沃茨中是常见的。ATR/FTIR还表明存在无机污垢;无机与有机污垢的比例在两种水源之间变化。污垢的光谱比其他天然沃茨的光谱明显更明显，这表明麦地那河和海狸湖表面沃茨中存在的相对较少的成分可能会吸附到这种膜材料。ATR/FTIR是研究天然沃茨对膜污染的有效工具。
ddAttenuated total reflection (ATR) Fourier transform infrared (FTIR) spectrometry provided insight into the chemical nature of deposits on polypropylene microfiltration membranes after filtration of two North American surface waters. The spectra of the foulants were easy to distinguish from the spectra of the membrane material. The results did not show strong evidence for the presence of carboxylic acid, carboxylate, phenolic, or hydroxyl functional groups in the foulants, although these functional groups are common in natural waters. ATR/FTIR also indicated the presence of inorganic foulants; the ratio of inorganic to organic foulants varied between the two water sources. The spectra of the foulants were significantly more distinct than spectra of other natural waters, suggesting that relatively few components present in Medina River and Beaver Lake surface waters may adsorb to this membrane material. ATR/FTIR appears to be a valuable tool for studying membrane fouling by natural waters.