利用造粒赤泥吸附水中Cd^(2+)的研究

RESEARCH ON ADSORBING Cd^(2+) IN WATER BY GRANULAR RED MUD

提出了一种新的造粒赤泥吸附剂(GRM)的制备方法,并研究了它作为一种低成本的吸附剂,对水溶液中Cd2+的吸附性能。GRM在低浓度下对Cd2+较强的去除能力、静态实验中的高吸附性能及动态吸附柱较强的再生能力均表明将粉状的赤泥吸附剂制成GRM加固产品可用于重金属的吸附。

This study puts forward a new method to prepare granular red mud(GRM)and evaluates its potential use to remove cadmium ions from aqueous solutions as a low-cost adsorbent.The high capability to remove cadmium completely at low concentrations,high adsorption capacity in batch and column adsorption and fine reversibility to be regenerated rapidly for 4 cycles indicate that granular red mud can be used in heavy metals adsorption as an upgraded product for powdered red mud adsorbents.