活性炭上吸附态重金属稳定性

发布时间：2018-05-31 18:56

  本文选题：活性炭 + 重金属　； 参考：《环境工程学报》2017年01期

【摘要】：为评价吸附后活性炭上重金属稳定性,采用BCR(European Communities Bureau of Reference)连续浸提法对吸附于活性炭上的重金属形态进行分析,分为可交换态、可还原态、可氧化态和残渣态。结果表明:未改性、硝酸改性、氨改性活性炭上Cr(Ⅵ)、Pb(Ⅱ)、Cd(Ⅱ)以残渣态稳定态为主,均在80%左右,在环境中的迁移性低,且改性后活性炭上重金属残渣态含量高于未改性活性炭。研究表明,应用BCR连续提取法有助于确定活性炭中重金属的污染状况和潜在释放能力。
[Abstract]:In order to evaluate the stability of heavy metals on activated carbon after adsorption, the forms of heavy metals adsorbed on activated carbon were analyzed by BCR(European Communities Bureau of Reference) continuous extraction method, which can be divided into exchangeable state, reducible state, oxidable state and residue state. The results show that the residual state of Cr (鈪，

本文编号：1960927