• Home
  • Browse
    • Current Issue
    • By Issue
    • By Author
    • By Subject
    • Author Index
    • Keyword Index
  • Journal Info
    • About Journal
    • Aims and Scope
    • Editorial Board
    • Publication Ethics
    • Indexing and Abstracting
    • Peer Review Process
  • Guide for Authors
  • Submit Manuscript
  • Contact Us
 
  • Login
  • Register
Home Articles List Article Information
  • Save Records
  • |
  • Printable Version
  • |
  • Recommend
  • |
  • How to cite Export to
    RIS EndNote BibTeX APA MLA Harvard Vancouver
  • |
  • Share Share
    CiteULike Mendeley Facebook Google LinkedIn Twitter
Egyptian Journal of Aquatic Biology and Fisheries
arrow Articles in Press
arrow Current Issue
Journal Archive
Volume Volume 29 (2025)
Volume Volume 28 (2024)
Volume Volume 27 (2023)
Volume Volume 26 (2022)
Volume Volume 25 (2021)
Volume Volume 24 (2020)
Volume Volume 23 (2019)
Issue 5 (Special Issue)
Issue Issue 4
Issue Issue 3
Issue Issue 2
Issue Issue 1
Volume Volume 22 (2018)
Volume Volume 21 (2017)
Volume Volume 20 (2016)
Volume Volume 19 (2015)
Volume Volume 18 (2014)
Volume Volume 17 (2013)
Volume Volume 16 (2012)
Volume Volume 15 (2011)
Volume Volume 14 (2010)
Volume Volume 13 (2009)
Volume Volume 12 (2008)
Volume Volume 11 (2007)
Volume Volume 10 (2006)
Volume Volume 9 (2005)
Volume Volume 8 (2004)
Volume Volume 7 (2003)
Volume Volume 6 (2002)
Volume Volume 5 (2001)
Volume Volume 4 (2000)
Volume Volume 3 (1999)
Volume Volume 2 (1998)
Volume Volume 1 (1997)
M. Younis, A., A. Aly-Eldeen, M., M. Elkady, E. (2019). Effect of different molecular weights of chitosan on the removal efficiencies of heavy metals from contaminated water. Egyptian Journal of Aquatic Biology and Fisheries, 23(4), 149-158. doi: 10.21608/ejabf.2019.52591
Alaa M. Younis; Mohamed A. Aly-Eldeen; Eman M. Elkady. "Effect of different molecular weights of chitosan on the removal efficiencies of heavy metals from contaminated water". Egyptian Journal of Aquatic Biology and Fisheries, 23, 4, 2019, 149-158. doi: 10.21608/ejabf.2019.52591
M. Younis, A., A. Aly-Eldeen, M., M. Elkady, E. (2019). 'Effect of different molecular weights of chitosan on the removal efficiencies of heavy metals from contaminated water', Egyptian Journal of Aquatic Biology and Fisheries, 23(4), pp. 149-158. doi: 10.21608/ejabf.2019.52591
M. Younis, A., A. Aly-Eldeen, M., M. Elkady, E. Effect of different molecular weights of chitosan on the removal efficiencies of heavy metals from contaminated water. Egyptian Journal of Aquatic Biology and Fisheries, 2019; 23(4): 149-158. doi: 10.21608/ejabf.2019.52591

Effect of different molecular weights of chitosan on the removal efficiencies of heavy metals from contaminated water

Article 12, Volume 23, Issue 4, October 2019, Page 149-158  XML PDF (450.4 K)
Document Type: Original Article
DOI: 10.21608/ejabf.2019.52591
View on SCiNiTO View on SCiNiTO
Authors
Alaa M. Younis; Mohamed A. Aly-Eldeen; Eman M. Elkady
Abstract
In the present study, chitin isolated from locally available shrimp shells was pulverized to obtain three different particle sizes and then deacetylated to obtain various deacetylation degrees and molecular weights of chitosan. In the batch mode experiment, the removal efficiency of heavy metals [Zn(II), Cd(II), Pb(II), and Cu(II)] from synthetic wastewater solutions with different concentrations ranging from 10-30 mg/l using three molecular weights chitosan was evaluated. Cadmium was the best metal chelated by all three types of chitosan and the extent of adsorption was considerably higher in the type 1 of chitosan sample of small particle size with lower of molecular weight and higher of degree of deacetylation compared with types 2 and 3 chitosans. In addition, the maximum percent removal of heavy metal ions was at concentration 10 and 20 mg/l in order of Cd (II > Pb (II) > Cu (II) )> Zn (II), while at concentration 30 mg/l the removal efficiency of chitosan was in order of Cd (II) > Cu (II) > Pb (II) > Zn (II). The influence of pH is presented and the maximum uptake of metal ions was obtained at pH 4.0 at room temperature.
Keywords
Heavy metals; Removal efficiency; Chitosan; bio-adsorption; Shrimp shells
Statistics
Article View: 703
PDF Download: 1,077
Home | Glossary | News | Aims and Scope | Sitemap
Top Top

Journal Management System. Designed by NotionWave.