918搏天堂

接待会见918搏天堂官方网站!

文献资料

联系918搏天堂

918搏天堂

电话:0570-8788056

传真:0570-8788381

邮箱:zjgykp@163.com

地点:浙江省衢州市东港经济开发区

东港4路2号

您所在的目今位置:首页 > 文献资料 > 排铅类文献
  • 化学改性橘皮用于吸附/脱附镉(II),铜(II),铅(II):平衡与动力学研究
  • 宣布时间: 2019/3/29 点击次数:2473 
  •   化学改性橘皮用于吸附/脱附镉(II),铜(II),铅(II):平衡与动力学研究

    Adsorption/desorption of Cd(II), Cu(II) and Pb(II) using chemically modified orange peel: Equilibrium and kinetic studies 

    Mohamed R. Lasheen, Nabila S. Ammar, Hanan S. Ibrahim 

    Solid State Sciences

    Volume 14, Issue 2, February 2012, Pages 202–210,http://dx.doi.org/10.1016/j.solidstatesciences.2011.11.029

    Water Pollution Research Department, National Research Centre, 12311 Dokki, Cairo, Egypt

    Abstract

    Waste materials from industries such as food processing may act as cost effective and efficient biosorbents to remove toxic contaminants from wastewater. This study aimed to establish an optimized condition and closed loop application of processed orange peel for metals removal. A comparative study of the adsorption capacity of the chemically modified orange peel was performed against environmentally problematic metal ions, namely, Cd2+, Cu2+ and Pb2+, from aqueous solutions. Chemically modified orange peel (MOP) showed a significantly higher metal uptake capacity compared to original orange peel (OP). Fourier Transform Infrared (FTIR) Spectra of peel showed that the carboxylic group peak shifted from 1637 to 1644 cm−1 after Pb (II) ions binding, indicated the involvement of carboxyl groups in Pb(II) ions binding. The metals uptake by MOP was rapid and the equilibrium time was 30 min at constant temperature and pH. Sorption kinetics followed a second-order model. The mechanism of metal sorption by MOP gave good fits for Freundlich and Langmuir models. Desorption of metals and regeneration of the biosorbent was attained simultaneously by acid elution. Even after four cycles of adsorption-elution, the adsorption capacity was regained completely and adsorption efficiency of metal was maintained at around 90%.

  • 上一篇:
    下一篇:
  • 返回新闻列表
 

    联系918搏天堂

  • 地点:浙江省衢州市东港经济开发区东港4路2号
  • 联系电话:0570-8788056
  • 咨询热线:400-7118-600
  • E-mail:zjgykp@163.com

Coptyright © 2018 zjgykp.com All Rights Reserved. 版权所有 918搏天堂   技术支持:浙江芝麻开门  浙ICP备19048970号-1|后台治理
网站地图
友情链接:万象城官网  bat365  yy易游  米乐M6官网  9游会官网  pg电子官网  米乐M6官网  3377体育  云顶集团官网  bat365官网  UG环球官网  米乐M6官网  Bsports体育  J9真人  bat365官网