不同吸附材料对水中Cr(Ⅵ)吸附性能初探

文章以蛭石、粉煤灰、沸石为吸附材料,初步研究了它们对Cr6+离子的吸附性能。实验表明,3种吸附剂对Cr6+离子的吸附都受到吸附剂量、溶液pH和搅拌时间等吸附条件的影响。经过对照实验,表明蛭石对Cr6+离子的吸附效果较之粉煤灰和沸石要好,并且在如下吸附工艺条件下:pH 5.5、搅拌时间30min、浓度为10mg/L的Cr6+模拟废水中,蛭石用量为0.1 g/ml最佳,此时最大去除率为70.11%。

Primary study on the several of the adsorbent to absorption properties of Cr(Ⅵ)

In this paper,vermiculite,fly ash,zeolite for the adsorbent materials,on their performance Cr6+ Ion conduct a preliminary study.The experiments show that their capacity of absorbing are subject to the weight of adsorbent,pH and adsorption contact time.The control experiments show that the vermiculite to Cr6+ absorption effect is better than the fly ash and zeolite,its absorption of the best conditions: pH 5.5,Stirring time 30 min,The concentration of 10 mg/l of Cr6+ wastewater in the vermiculite amount of 0.1g/ml for the best,then the largest removal of 70.11 percent.