• DOI:10.2166/wst.2015.567
• Corpus ID: 41693979

Environmental remediation of heavy metal ions from aqueous solution through hydrogel adsorption: a critical review.

@article{Muya2016EnvironmentalRO,
  title={Environmental remediation of heavy metal ions from aqueous solution through hydrogel adsorption: a critical review.},
  author={Francis Ntumba Muya and Christopher Edoze Sunday and Priscilla Gloria Lorraine Baker and Emmanuel Iheanyichukwu Iwuoha},
  journal={Water science and technology : a journal of the International Association on Water Pollution Research},
  year={2016},
  volume={73 5},
  pages={
          983-92
        }
}

• F. Muya, C. E. Sunday, +1 author E. Iwuoha
• Published 4 March 2016
• Engineering
• Water science and technology : a journal of the International Association on Water Pollution Research

Heavy metal ions such as Cd(2+), Pb(2+), Cu(2+), Mg(2+), and Hg(2+) from industrial waste water constitute a major cause of pollution for ground water sources. These ions are toxic to man and aquatic life as well, and should be removed from wastewater before disposal. Various treatment technologies have been reported to remediate the potential toxic elements from aqueous media, such as adsorption, precipitation and coagulation. Most of these technologies are associated with some shortcomings, and challenges in terms of applicability, effectiveness and cost. However, adsorption techniques have the capability of effectively removing heavy metals at very low concentration (1-100 mg/L). Various adsorbents have been reported in the literature for this purpose, including, to a lesser extent, the use of hydrogel adsorbents for heavy metal removal in aqueous phase. Here, we provide an in-depth perspective on the design, application and efficiency of hydrogel systems as adsorbents.