利用水葫芦根系去除水中铜离子污染研究

摘要

In this study, water hyacinth roots was evaluated as a biosorbent material for the removal of Cu2＋ in aqueous media. The data demonstrated the considerable sorption capacity could get to 23.5 mg/g under the conditions of pH5.5, temperature of 55 ~C and CuE＋ concentration of 30 mg/L, This confirmed that water hyacinth roots was feasible as a biosorbent material for the removal of Cu〉 in aqueous media. The analysis about SB~, kinetic biosorption, activation energy and ion release in the process revealed the biosorption mechanism of the water hyacinth roots as a biosorbent material for the removal of Cu2＋ in aqueous media.%利用水葫芦根系作为生物吸附剂去除水溶液中的Cu2＋污染,试验结果表明,在pH5.5,温度为35℃,Cu2＋浓度为30 mg/L的条件下,水葫芦根系对Cu2＋的最大吸附量可达23.5 mg/g,说明水葫芦根系作为生物吸附剂去除水溶液中的Cu2＋是可行的。通过对水葫芦根系比表面积分析、吸附动力学分析、吸附活化能计算、吸附过程离子释放分析解释了水葫芦根系作为生物吸附剂去除水中Cu2＋的吸附机理。