Organic Materials Laboratory, Corporate Research and Development Center, Toshiba Corporation, Komukai Toshiba-cho, Saiwai-ku, Kawasaki 212-8582, Japan E-mail:
Water Sci Technol. 2013;68(8):1819-24. doi: 10.2166/wst.2013.411.
Removal of phenol from saline water was carried out with chelating resin. A polyamine chelating resin, Diaion CR-20, removed phenol compounds selectively from industrial wastewater containing 2% salt. From saline water containing 20 mg/L phenol, 70% of the phenol was removed. After treatment, phenol was eluted from the resin by aqueous NaOH, and the resin could also be regenerated by heating in air. Diaion CR-20 adsorbed phenol even in the presence of FeCl3, indicating that treatment with this resin of wastewater containing metal can remove phenol and metal cations in a single step.
采用螯合树脂去除盐水中的苯酚。聚胺螯合树脂 Diaion CR-20 可从含盐量为 2%的工业废水中选择性地去除苯酚类化合物。从含有 20mg/L 苯酚的盐水中，可去除 70%的苯酚。处理后，用氢氧化钠水溶液从树脂上洗脱苯酚，树脂也可以通过在空气中加热再生。Diaion CR-20 即使在存在 FeCl3 的情况下也能吸附苯酚，表明用这种树脂处理含有金属的废水可以在一步中去除苯酚和金属阳离子。
