树脂吸附法处理黄连素模拟废水

Treatment of simulated berberine wastewater with resin adsorption

  • 摘要: 开展了树脂吸附法处理黄连素模拟废水实验研究,初步筛选了5种大孔吸附树脂,优选出最佳吸附树脂H103。考察了pH、树脂量、温度对吸附效果的影响,绘制了吸附等温线。结果表明:对于黄连素浓度为1 000 mg/L的模拟废水,最佳吸附pH值为7.0;在280.5~298.0 K的温度范围内,最佳吸附温度为293 K,在此温度下大孔树脂吸附黄连素的反应能更快达到平衡;在最佳吸附pH和温度条件下,最佳树脂投加量为3.0 g。用Freundlich等温吸附曲线或者仅用Langmuir等温吸附曲线描述吸附过程相关度均不高,说明大孔树脂H103吸附黄连素是一个复杂的过程。

     

    Abstract: The removal of berberine from synthetic pharmaceutical wastewater by polymeric adsorption resins was investigated. The optimal polymeric adsorbent was selected as H103 based on the comparison of berberine removal rates. The effects of pH, the amount of polymeric resin and temperature on the adsorption of berberine were explored. Also, the adsorption isotherms of berberine were tested. The results showed that the optimum pH value was 7.0 when the simulated berberine wastewater concentration was 1000 mg/L. The specific absorption rate was 139.0 mg/g when the polymer resin was least. The more polymeric adsorbents H103 added the better berberine removal rate could be reach.Inthe temperature rangefrom 280.5 K to 298.0 K, the optimum temperature for berberine adsorption was 293 K.Adsorption isotherm of berberine could be described neither by Freundlich equation, nor by Langmuir equation,which indicated the complexity of the absorption process of berberine by polymeric adsorbents H103.

     

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