钢铁钒钛2025，Vol.46Issue(2)：19-25,7.DOI:10.7513/j.issn.1004-7638.2025.02.003
膜分离法回收沉钒废水中钒与铬
Recovery of vanadium and chromium from vanadium precipitation wastewater by membrane separation technology
摘要
Abstract
In order to recover the valuable metals vanadium and chromium from vanadium precipita-tion wastewater,this study adopted ethylenediaminetetraacetic acid(EDTA)complexation and mem-brane separation to treat vanadium precipitation wastewater.The effects of complexation effect,mem-brane type,water flux,pressure difference and other parameters on the recovery of vanadium and chro-mium were investigated.The results showed that when the molar ratio of EDTA was 1.5,the wastewa-ter was filtered by NF5 nanofiltration membrane at 0.8 MPa for 3 times.The retention rates of vana-dium and chromium were 99.88％and 99.97％,respectively,and the concentrations of vanadium and chromium in the concentrate were 24.97 g/L and 2.499 g/L,respectively,which realized the effective re-covery of vanadium and chromium in vanadium precipitation wastewater.The contents of vanadium and chromium in the permeate were 0.573 mg/L and 0.015 mg/L,respectively,meeting the industrial wastewater discharge standard.The results of DLS,SEM and AFM showed that the vanadium and chro-mium in the solution could be effectively recovered by using EDTA complexation and membrane separ-ation technology.关键词
沉钒废水/EDTA络合/膜分离/钒/铬Key words
vanadium wastewater/EDTA complexation/membrane separation/vanadium/chromium分类
矿业与冶金引用本文复制引用
辛云涛,宋坤,王如成,田庆华..膜分离法回收沉钒废水中钒与铬[J].钢铁钒钛,2025,46(2):19-25,7.基金项目
国家科技部重点研发计划支持(2022YFC3901001). （2022YFC3901001）
