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采用物化活化工艺,以枣椰仁为原材料制作颗粒活性碳( GAC) ,制作过程主要有 6 个步骤: 清洗,烘干,粉碎,筛分,炭化和活化. 通过小试对新型 GAC 去除余氯的特性进行了研究,并将实验结果与 Langmuir和 Freundlich 等温方程进行了拟合. 通过理论和实验分析,考察了主要运行参数对吸附动力的影响. 结果表明: Langmuir 等温方程与实验数据最为吻合,说明其对余氯吸附为单层吸附. 新型 GAC 在余氯吸附方面具有巨大潜力,比传统的吸附剂更具竞争力. 采用托马斯扩展模型结合物质转移阻力对实验结果进行了验证,模拟结果与实验非常符合.
Through the process of physico-chemical activation, granular activated carbon (GAC) is made from date palm as raw material, and the production process consists of six steps: washing, drying, crushing, sieving, carbonization and activation. And the experimental results were fitted with the Langmuir and Freundlich isothermal equations.The influence of the main operating parameters on the adsorption kinetics was investigated by theoretical and experimental analysis.The results show that the Langmuir isotherm equation is in good agreement with the experimental data, Indicating that the adsorption of residual chlorine is monolayer adsorption.The new GAC has great potential for residual chlorine adsorption and is more competitive than traditional adsorbents.The experimental results are verified by using Thomas extended model combined with material transfer resistance.The results of simulation and Experiment is very consistent.