Adsorption Characteristics of the Powdered Activated Carbon on Pesticide in the Water

• 作者: Feng Guixue Jia Ruibao Pan Zhangbin Song Wuchang Sun Shaohua
• 来源期刊: 气象与环境研究：英文版
• 学科: 农学
• 关键词: 粉末活性炭 吸附特性 农药 输水 LANGMUIR 粉状 动力学方程 吸附动力学
• 年，卷（期）: 2014,（12）
• 页码范围: 53-56
• 页数: 4页
• 分类号: S482

摘要

The adsorption characteristics of the powdered activated carbon on four kinds of pesticides( dichlorvos,chlorothalonil,lindane and chlorphyrifos) were studied,and the influential factors of adsorption effect were discussed. Results showed that the powdered activated carbon could effectively remove the above four kinds of pesticides. It was rapid adsorption period before 30 min,and removal rate has reached 90%. Adsorption kinetics of the powdered activated carbon on pesticides corresponded with quasi-two-level kinetic equation,and both Freundlich and Langmuir adsorption isotherms could simulate the adsorption process of the activated carbon on pesticide well. Competitive adsorption between small-molecule organics in the water diverting from Yellow River and pesticides on micropore of the activated carbon would occur.