高锰酸钾强化粉末活性炭吸附效能研究

摘要

The influence of potassium permanganate preoxidation on the adsorption of phenol by pow-dered activated carbon was evaluated. The results showed that potassium permangnate preoxidation in-creased the adsorption capacity of trace phenol by powdered activated carbon. This increase was be-lieved due to the oxidized polymerization of phenol compounds on the surface of powdered activatedcarbon or the adsorption by the manganese dioxide formed in situ during permanganate oxidation.%以苯酚为代表物质，探讨了不同pH、不同本底等条件下高锰酸钾预氧化对粉末活性炭吸附水中微量有机污染物的影响规律。结果表明，高锰酸钾预氧化使苯酚在粉末活性炭表面的饱和吸附量增加，其增加幅度取决于吸附过程中高锰酸钾的氧化条件及新生态水合二氧化锰的生成量。