摘要
[目的]探讨植酸海泡石复合重金属吸附剂对Cd2+的最佳吸附条件。[方法]以植酸与海泡石为原料,制备出植酸海泡石复合重金属吸附剂对Cd2+进行吸附,分析吸附剂用量、pH、温度、Cd2+浓度、吸附平衡时间等因素对吸附剂吸附性能的影响。[结果]植酸海泡石复合重金属吸附剂吸附Cd2+的最佳条件为:吸附剂用量为18 g/L,温度为30℃,pH=3.8,Cd2+浓度为48 mg/L,吸附时间60 min。[结论]该研究为含镉废水的处理提供了科学依据。
[ Objective] The study aimed to discuss the optimal conditions for Cd2＋ adsorption by an adsorbent compounded of phytic acid and sepiolite. [ Method ] An adsorbent compounded of pbytic acid and sepiolite was used to adsorb Cd2~ , and the effects of adsorbent dosage, pH, temperature, Cd2＋ concentration and adsorption equilibrium time on adsorption performance of the adsorbent were discussed. [ Result] When 18 g/L of adsorbent compounded of phytie acid and sepiolite was used to adsorb solution with Cd2＋ concentration of 48 mg/L and pH of 3.8 for 60 min at 30℃, the adsorption effect of Cd2＋ was better. [ Conclusion] The research could provide scientific references for the treatment of wastewater containing Cd2＋ in future.
出处
《安徽农业科学》
CAS
2013年第24期10087-10088,共2页
Journal of Anhui Agricultural Sciences
基金
湖南省科技厅科学研究项目(2012SK3283)
