摘要
用水泥对火电厂废渣-粉煤灰进行改性,利用改性粉煤灰吸附去除水中的Cr(VI)离子,试验研究了Cr(VI)初始浓度、吸附剂用量、吸附时间、溶液的酸度和吸附剂颗粒大小对吸附效果的影响,找出了吸附的最优条件。在最佳条件下,改性粉煤灰对Cr(VI)的去除率达95%以上。
A modified fly ash adsorbent was made by mixing a certain amount of cement (#325) with fly ash and then dried the mixture in a dry machine at 150(C for three hours. Due to its adsorptive ability, this adsorbent was applied for the removal of Cr (VI) in wastewater. Experimental results show that the initial concentration, adsorptive time, pH and particle size may exert influences on the removal rate of Cr(VI). A removal rate of more than 95% can be achieved under the optimal conditions.
出处
《桂林电子工业学院学报》
2003年第6期40-42,共3页
Journal of Guilin Institute of Electronic Technology
基金
桂林电子工业学院自然科学基金资助(Z20313)
