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用静态吸附法对比研究D30l树脂、330树脂对环境激素双酚A的吸附性能。实验结果表明:相同条件下,D301树脂对双酚A的吸附量大干330树脂对双酚A的吸附量;330树脂在pH=4—9时对双酚A的吸附量最大,在pH值为11.31时,D301树脂对双酚A的吸附量最大,其吸附量大于330树脂对双酚A的最大吸附量;随着盐含量的升高,330树脂对双酚A的吸附量先迅速降低后平缓升高,而D301树脂对双酚A的吸附量随盐含量的升高逐渐增大;在80%C_2H_5OH和2mol/L NaOH的混合解吸剂中,D301、330树脂上双酚A的解吸率分别为99.99%、97.78%。D301树脂对双酚A的吸附存在离子交换,但以π—π作用为主,330树脂对双酚A的吸附以离子交换为主。
The static adsorption method was used to study the adsorption of environmental hormone bisphenol A by D301 resin and 330 resin. The experimental results show that under the same conditions, the adsorption capacity of bisphenol A by D301 resin is larger than that of bisphenol A by 330 resin. The adsorption capacity of bisphenol A by 330 resin is the highest at pH = 4-9. Was 11.31, the adsorption capacity of bisphenol A by D301 resin was the largest, and the adsorption capacity of bisphenol A was larger than that of 330 resin. With the increase of salt content, the adsorption capacity of bisphenol A by 330 resin decreased rapidly The adsorption amount of bisphenol A on D301 resin gradually increased with the increase of salt content. In the mixed desorbent of 80% C 2 H 5 OH and 2 mol / L NaOH, the desorption of bisphenol A on D301 and 330 resin Rates were 99.99%, 97.78%. D301 resin adsorption of bisphenol A ion exchange, but mainly π-π, 330 resin adsorption of bisphenol A based ion exchange.