橘子皮对水中亚甲蓝的吸附性能

用低值廉价的橘子皮作为吸附剂对亚甲蓝染料废水进行吸附研究，考察了吸附平衡时间、溶液pH、染料浓度等因素对亚甲蓝吸附的影响，橘子皮主要含有羧基、氨基和磺酸基，橘子皮生物吸附剂对MB的吸附所需平衡时间为1小时，在pH=10的条件下,生物吸附剂对MB的最大吸附量(qm)为370.3±31.0 mg/g，等温吸附线符合Langmuir和Freundlich模式，研究结果表明：橘子皮对染料废水的吸附只需很短的时间则可达到吸附饱和，且吸附量大，具有很好的应用前景。

Adsorption performance in binding of Methylene Blue in aqueous solution by orange peel

Orange peel was used as low-cost adsorbent in binding of Methylene Blue. The effects of equilibrium time, pH, dye concentration have been studied. Carboxyl, amine and phosphonate functional groups were present in the orange peel. The equilibrium time was 1 hour, the maximum adsorption capacities of the orange peel was 370.3±31.0 mg/g at pH 10. The Langmuir and Freundlich isotherms were well fitted in this biosorption system. Results showed relatively higher rate constant and biosorption capacities. These adsorption performance indicate the orange peel as a potentially economical adsorbent for dye removal.