活性炭处理的腐殖酸对锌离子的吸附研究

Adsorption of Zinc Ions on the Humic Acid Dealt with Activated Carbon

用正交实验研究了活性炭处理稀碱腐殖提取液 ,同时进一步研究腐殖酸对Zn2 +的吸附条件及吸附性能 .研究发现 ,在实验条件下 ,腐殖酸几乎不能被活性炭吸附 ,而且腐殖酸对Zn2 +的吸附率可达 99.65 % ,吸附基本属于langmuir型 ,吸附的最佳条件是等量的Zn2 +和腐殖酸在pH 13 ,45℃ ,1h .

The humic acid extracted by dilute base was dealt with activated carbon and study the adsorption of metal zinc ions on the humic acid. The results indicated that the humic acid was hardly adsorbed by activated carbon, in the range of research, while adsorptive percentage had amounted to 99.65%. The type of adsorption probably belong to langmuir, the optimum adsorptive condition was in pH13, 45℃ for 1h when zinc ions volume was equal to humic acid volume.