高锰酸盐的活性炭吸附行为

Adsorption of Permanganate onto Activated Carbon Particles

为研究变价元素在活性炭颗粒上的吸附行为及吸附过程中的价态转化，以阐明高锰酸钾的吸附实质，作者考察了高锰酸盐在活性炭颗粒上的吸附情况以及外界条件对吸附作用的影响。结果发现ＭｎＯ－４不为活性炭颗粒吸附，但它可被活性炭颗粒还原，其还原分数强烈依赖于所处介质的ｐＨ值，还原产物主要为Ｍｎ２＋，还原产生的Ｍｎ２＋以表面络合模式为活性炭颗粒吸附。

In this paper,the adsorption behavior of permanganate onto activated carbon particles was studied as a function of pH,flow rate and the concentration of permanganate.It was found that permangante was not adsorbed but reduced by activated carbon particles.The percent of reduction of permanganate was strongly pH dependent.The reducing product of permanganate was mainly Mn 2+ which was adsorbed onto the activated carbon particles by surface complexation.