• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Energy Technologies Symposium >Rapid Removal of Pb(II) from Acid Wastewater Using Vanadium Titanium-Bearing Magnetite Particles Coated by Humic Acid
【24h】

Rapid Removal of Pb(II) from Acid Wastewater Using Vanadium Titanium-Bearing Magnetite Particles Coated by Humic Acid

机译：使用腐殖酸涂覆的钒含铁铝磁铁矿颗粒快速去除酸废水的Pb（II）

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Acid wastewater containing toxic metal ions has become increasingly important global environmental concern and lead (Pb) is one of the prime toxic heavy metal ions. Humic acid (HA), a kind of natural organic matter, has been proven to have a great adsorption capacity for metal cations (Pb~(2+), Cu~(2+), etc.). Our previous study has verified that HA has excellent adsorbing ability on vanadium titanium-bearing magnetite (VTM) particles. In this study, VTM-HA complex magnetic particles were prepared for removing Pb(II) from acid wastewater, which could be easily recycled by magnetic separation. The effects of pH value, ionic strength and VTM-HA concentration on the removal ratio of Pb(II) were determined by isothermal adsorption tests. The results indicated that Pb(II) adsorption was subject to pH and ionic strength. When initial Pb(II) concentration is 100 mg/L, the residual concentration and removal ratio of Pb(II) reach 0.17 mg/L and 99.83%, respectively, which are much lower than the discharge standard.
机译：含有有毒金属离子的酸废水已成为越来越重要的全球环境问题和铅（PB）是毒性重金属离子之一。已经证明腐殖酸（HA）是一种天然有机物，具有较大的金属阳离子吸附能力（PB〜（2+），Cu〜（2+）等）。我们以前的研究证实，HA在含钒含钒磁铁矿（VTM）颗粒上具有优异的吸附能力。在该研究中，制备VTM-HA复合磁性颗粒以从酸废水中除去Pb（II），这可以通过磁分离容易地再循环。通过等温吸附试验测定pH值，离子强度和VTM-HA浓度对Pb（II）的去除率的影响。结果表明，PB（II）吸附受到pH和离子强度。当初始PB（II）浓度为100mg / L时，Pb（II）的残留浓度和去除率分别达到0.17mg / L和99.83％，低于排出标准。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号