Adsorption of CECs in the nanofiltration process

Tse Jung Liu, E. E. Chang, Pen Chi Chiang

研究成果: 雜誌貢獻文章同行評審

2 引文 斯高帕斯(Scopus)


Adsorption is one of the main mechanisms of compounds of emerging concerns (CECs) rejection by a membrane process. CECs could be adsorbed not only by membrane but also by suspended solid during membrane filtration. In this study, the adsorption of five CECs by natural organic matter (NOM) and NF270 was investigated by using 96-h bottle and batch tests at 25°C, respectively. Humic acid (HA), which is the major ingredient of NOM, was added into Milli-Q water as NOM to simulate the natural water. HA added into the solution was found insolubility at pH 7 in this study. Adsorption of CECs by HA was strongly correlated with log Kow of compound. Adsorption capacity was observed to be maximum with HA followed by NF. The study also found that the removal efficiency of CECs by NF could be affected by NOM present in the water. Micro-pollutants, such as CECs, could be adsorbed by HA and then be removed easily during the membrane filtration. Moderate existence of HA would be contributive for CECs removal, but too much HA would cause fouling phenomenon resulted in a worse removal efficiency.
頁(從 - 到)2658-2668
期刊Desalination and Water Treatment
出版狀態已發佈 - 6月 5 2015

ASJC Scopus subject areas

  • 污染
  • 水科學與技術
  • 海洋工程


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