Adsorption of Naphthalene on Clay and Sandy Soil from Aqueous Solution

• 作者: Chiedu N. Owabor Ebuwa I. Osagie
• 来源期刊: 化学工程与科学期刊(英文)
• 学科: 化学
• 关键词: ADSORPTION NAPHTHALENE KINETIC Models Equilibrium Isotherms CLAY SANDY Soil
• 年，卷（期）: 2015,（3）
• 页码范围: 345-351
• 页数: 7页
• 分类号: O6

摘要

The adsorption behavior of naphthalene using clay and sandy soil as adsorbents is examined under ambient conditions. The adsorption equilibrium of naphthalene on clay and sandy soil was evaluated by the Langmuir, Freundlich and Tempkin isotherms. The results showed that the equilibrium data for naphthalene fitted the Freundlich model best within the concentration range studied for both clay and sandy soil. Experimental results showed that the time taken to attain adsorption equilibrium for naphthalene was 26 hrs and 20 hrs for clay and sandy soil, respectively. Among the tested kinetic models in this study, the pseudo-second order successfully predicted the adsorption process.