含锰废水改性活性炭吸附性能研究

Improving Adsorption Capacity of Modified Activated Carbon by Wastewater Contained Manganese

在实验室条件下,采用含锰废水浸泡改性活性炭,测定了改性活性炭基本吸附性能。实验测得原始活性炭的碘吸附质量比为95.07 mg/g,活性炭的SO2吸附质量比为95.51 mg/g。而经过含锰废水浸泡不同天数后的改性活性炭的碘吸附质量比分别为:(1 d)118.43 mg/g,(2 d)118.36 mg/g,(3 d)160.69 mg/g和(4 d)133.17 mg/g;它们对SO2的吸附质量比分别为(1 d)149.53 mg/g,(2 d)122.14 mg/g,(3 d)117.12 mg/g和(4 d)110.09 mg/g。这些实验结果表明,采用含锰废水改性活性炭的表面化学性质后可以提高活性炭的碘值和吸附能力,同时含锰废水得到再利用。

in this paper, activated carbon was modified by being immersed in wastewater contained manganese under laboratory conditions, and the basic adsorption capability of the modified activated carbon bad been determined, The value of iodine adsorption ef the original activated carbon was 95.07 mg/g and SO2 adsorption capacity was 95.51 rag/g, respectively. After immersed in wastewater contained manganese in different days, the value of iodine adsorption of the modified activated carbon were 118.43 mg/g （one day）, 118.36 mg/g （two days）, 160.69 mg/g （three days） and 133.17 mg/g （four days）, rcspectively. The SO2 ansorption capacity were 149.53 mg/g （one day）, 122.14 mg/g （two days）, 117.12 mg/g （three days） and 110.09 mg/g （four days）, respectively. The results show that after modified the surface chemical properties of activated carbon immersed in wastewater contained manganese, the value of iodine adsorption and adsorption capacity of activated carbon have beeu improved, and the wastewater contained manganese was reused at the same time.