活性炭吸附硝酸铜电解液体系中砷的研究

Study on Arsenic Adsorption Properties by Activated Carbon from Copper Nitrate Electrolyte

研究了活性炭对硝酸铜电解液体系中砷的吸附性能,探讨了活性炭用量、吸附温度、吸附时间、溶液pH对其吸附性能的影响。实验结果表明:活性炭对砷有较强的吸附能力。在常温下,砷初始浓度为1g/L,电解液与活性炭质量比为13∶1,pH=2.5,平衡时间为40min时,砷的去除率达到85.2%。

Adsorption properties of activated carbon removing As from Cu(NO3)2 electrolyte were studied,and the effects of dosage of activaed carbon,adsorptive temperature,adsorptive time and solution pH were discussed.The results showed that the activated carbon had a fairly stong capacity of adsorbing As.At room temperature,when the initial concentration of As was 1g/L,the quality ratio of electrolyte and activated carbon was 13∶1,pH=2.5 and equilibrium was 40 min,the As removal rate reached 85.2%.