Poly(itaconic acid)-assisted ultrafiltration of heavy metal ions’ removal from wastewater

Hamidreza Rezania, Vahid Vatanpour*, Somayeh Faghani

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The complexation–ultrafiltration technique has been introduced as a capable system to remove heavy metals ions from wastewater. This method needs a water-soluble polymer; therefore, in this paper we synthesized super water-soluble poly(itaconic acid) (PITA) and employed it in polymer-assisted ultrafiltration process to remove Pb(II) ions from synthetic wastewater solutions. The itaconic acid can be produced from different agricultural products and is a green and eco-friendly material. Factors influencing the removal of the metals ions including poly(itaconic acid) concentration, pH and permeate flux were investigated. The results showed that the maximum percentage of metal ion removal was obtained in the basic pH (pH > 7). The flux test was performed by 200 mg/L of poly(itaconic acid) and after 60 min, the flux of membrane was 33.4 L/m2h. The simultaneously selective removal ability of the poly(itaconic acid) for adsorption of different metal ions (Pb2+, Sn2+, Cu2+, Zn2+, and Cd2+) was also studied. The trend of rejection was Pb2+ > Cu2+ > Sn2+ > Zn2+ > Cd2+. The highest rejection of Pb(II) ions was achieved as 86%. Generally, the results of this research demonstrated that poly(itaconic acid) (with two carboxyl groups on its repeating unit) is more effective in removing heavy metals ions from wastewater in comparison with customary polymers.

Original languageEnglish
Pages (from-to)1069-1077
Number of pages9
JournalIranian Polymer Journal (English Edition)
Volume28
Issue number12
DOIs
Publication statusPublished - 1 Dec 2019
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2019, Iran Polymer and Petrochemical Institute.

Keywords

  • Adsorption
  • Heavy metal ions removal
  • Poly(itaconic acid)
  • Polymer-assisted ultrafiltration
  • Water-soluble polymers

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