龙口褐煤对As(Ⅲ)的吸附特征

Study on the Characteristics of Adsorption for As(Ⅲ) on Longkou Lignite

利用龙口褐煤作吸附剂对Ａｓ（Ⅲ）的单组分水溶液进行吸附研究，对吸附模型、吸附时间、吸附剂用量以及温度、ｐＨ值对吸附的影响给予表征．结果表明：龙口褐煤对Ａｓ（Ⅲ）的静态等温吸附符合Ｆｒｅｕｎｄｌｉｃｈ等温方程．

With Longkou lignite as an adsorbent,the characteristics of adsorption for As(Ⅲ) are studied. The adsorption model, isotherms, and the effects of adsorption time, the dosage of adsorbent, the tempreture and the pH value are characterized respectively. The results indicate that the adsorption isotherm is conformed to the Freundlich equation.