ADSORPTION OF DINITROPHENOLS ONTO POLYMERIC ADSORBENTS AND ITS MECHANISM

• 作者: SHIZuoqing XUMancai
• 来源期刊: 中国反应性高分子：英文版
• 学科: 工学
• 关键词: 聚合吸附剂 二硝基苯酚 吸收
• 年，卷（期）: 2000,（1）
• 页码范围: 34-41
• 页数: 8页
• 分类号: TQ424.3

摘要

The adsorption of 2,4-dinitrophenol and 2,6-dinitrophenol on non-polar and polar adsorbents was studied.The results showed that the equilibrium adsorption did not comply with the Langmuir equation and was not mono-layer adsorption .It is of interest to notice that the effect of pH on the adsorption of 2,4-or 2,6-dinitrophenol onto ADS-7 and ADS-21 was very small,The result is explained by hydrogen bonding interaction between 2,4-or 2,6-dinitrophenol and the adsorbent ADS-21.The large adsorption capacity of dinitrophenol onto ADS-21,which was about 500mg/g at an equilibrium concentration of 400mg/L,and the small dinitrophenol leakage in the effluent from ADS-21 column presented a good prospect for treatment of wastewater containing dinitrophenol with adsorbent ADS-21.