BIOSORPTION OF HEXAVALENT CHROMIUM BASED ON MODIFIED Y ZEOLITES OBTAINED BY ALKALI-TREATMENT

被引：2
|
作者：
Figueiredo, Hugo [2 ]
Silva, Bruna [2 ]
Quintelas, Cristina [2 ]
Pereira, Manuel F. R. [3 ]
Neves, Isabel C. [1 ]
Tavares, Teresa [2 ]
机构：
[1] Univ Minho, Ctr Quim, Dept Quim, P-4710057 Braga, Portugal
[2] Univ Minho, Ctr Biol Engn, IBB, P-4710057 Braga, Portugal
[3] Univ Porto, Fac Engn, Dept Engn Quim, LCM,Lab Associado LSRE, P-4200465 Oporto, Portugal
来源：
ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL | 2010年 / 9卷 / 03期
关键词：
alkali-treatment; Arthrobacter viscosus; biosorbent; Cr(VI); NaY Zeolite; DIFFERENT ALUMINUM CONTENT; HIGH-SILICA ZEOLITES; HEAVY-METALS; STRUCTURAL EVOLUTION; CHEMICAL TREATMENTS; AQUEOUS-SOLUTION; ZSM-5; DISSOLUTION; ADSORPTION; REMOVAL;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The structural modification of external surface of NaY was investigated in order to enhance efficient biosorption systems consisting of a bacterial biofilm, Arthrobacter viscosus, supported on that zeolite, for removing hexavalent chromium from aqueous solutions. The supported bacterial biofilm reduces Cr(VI) to Cr(III) and this cation is then retained in the zeolite by ion exchange. NaY zeolite was modified by alkali-treatments using NaOH 2.0 M, with two different contact periods of time between the zeolite and the alkaline solutions, resulting in NaYA and in NaYB. The biosorbents supported on the modified NaY zeolite were tested in solutions with low concentration of chromium. The results showed that the modification of external surface of NaY zeolite allows an efficient Cr removal, and the maximum removal efficiency was observed for NaYA sample that was submitted to a smoother chemical treatment.
引用
收藏
页码：305 / 311
页数：7
相关论文
共 50 条
  • [31] Structure and apatite formation of microarc oxidized TiO2-based films before and after alkali-treatment by various alkali concentrations
    Wei, Daqing
    Zhou, Yu
    Wang, Yuanbin
    Meng, Qingchang
    Jia, Dechang
    [J]. SURFACE & COATINGS TECHNOLOGY, 2008, 202 (20): : 5012 - 5019
  • [32] Adsorption of hexavalent chromium onto alkali-modified biochar derived from Lepironia articulata: A kinetic, equilibrium, and thermodynamic study
    Asadullah
    Kaewsichan, Lupong
    Tohdee, Kanogwan
    [J]. WATER ENVIRONMENT RESEARCH, 2019, 91 (11) : 1433 - 1446
  • [33] A Micro Electrochemical Sensor based on Bismuth-Modified Mesoporous Carbon for Hexavalent Chromium Detection
    Xu, Sixing
    Wang, Xiaohong
    Zhou, Chen
    [J]. 2015 IEEE SENSORS, 2015, : 622 - 625
  • [34] Polypyrrole Modified Granular Activated Carbon Nanocomposite for Treatment of Wastewater Containing Highly Toxic Hexavalent Chromium
    Setshedi, Katlego Z.
    Kalombo, Lonji
    Nomadolo, Nomvuyo
    Hlekelele, Lerato
    Ray, Suprakas Sinha
    Maity, Arjun
    [J]. MACROMOLECULAR MATERIALS AND ENGINEERING, 2024, 309 (08)
  • [35] Continuous treatment of chromium picolinate and efficient chromium removal without hexavalent chromium accumulation using the modified Fe-C micro-electrolysis process
    Chen, Zhuo
    Li, Jingxia
    Chen, Tao
    Luo, Lin
    Luo, Shuang
    Xie, Xiande
    [J]. SEPARATION AND PURIFICATION TECHNOLOGY, 2024, 346
  • [36] Reply to "Comment on the removal mechanism of hexavalent chromium by biomaterials or biomaterials-based activated carbons" -: (Comment on "Diffusion kinetic study of Chromium(VI) biosorption by Aeromonas caviae")
    Loukidou, MX
    Karapantsios, TD
    Zouboulis, AI
    Matis, KA
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2006, 45 (07) : 2408 - 2408
  • [37] Evaluation of ion exchange-modified Y and ZSM5 zeolites in Cr(VI) biosorption and catalytic oxidation of ethyl acetate
    Silva, B.
    Figueiredo, H.
    Soares, O. S. G. P.
    Pereira, M. F. R.
    Figueiredo, J. L.
    Lewandowska, A. E.
    Banares, M. A.
    Neves, I. C.
    Tavares, T.
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2012, 117 : 406 - 413
  • [38] Bacterial cellulose-modified castor oil-based polyurethane sponge for hexavalent chromium removal
    Maia, Lana S.
    Pinhati, Fernanda R.
    Monteceli, Francisco M.
    Colturato, Vitoria M. M.
    Barbosa, Rennan F. S.
    Barud, Hernane S.
    da Conceicao, Monique T.
    Rosa, Derval S.
    Mulinari, Daniella R.
    [J]. JOURNAL OF APPLIED POLYMER SCIENCE, 2023, 140 (38)
  • [39] Chitosan-based composite microspheres for treatment of hexavalent chromium and EBBR from aqueous solution
    Han, Shiqi
    Zhou, Xuelei
    Xie, Honghao
    Wang, Xiaohong
    Yang, Lingze
    Wang, Huili
    Hao, Chen
    [J]. CHEMOSPHERE, 2022, 305
  • [40] Enhanced water treatment with TEMPO-modified luffa cellulose-PVA nanofiber composite for removal of hexavalent chromium
    Abdullah, Hadar M.
    Ahmed, Shahyan S.
    Abdulghafar, Banaz A.
    Yasin, Suhad A.
    Zeebaree, Samie Yaseen Sharaf
    Zeebaree, Aymn Yaseen Sharaf
    Zebari, Osama Ismail Haji
    [J]. RESULTS IN CHEMISTRY, 2024, 8
12345