Removal of heavy metals from wastewater by membrane processes: A comparative study

Hani Abu Qdais, Hassan Moussa

Research output: Contribution to journalArticle

322 Citations (Scopus)

Abstract

Wastewater containing copper and cadmium can be produced by several industries. The application of both reverse osmosis (RO) and nanofiltration (NF) technologies for the treatment of wastewater containing copper and cadmium ions to reduce fresh water consumption and environmental degradation was investigated. Synthetic wastewater samples containing Cu2+ and Cd2+ ions at various concentrations were prepared and subjected to treatment by RO and NF in the laboratory. The results showed that high removal efficiency of the heavy metals could be achieved by RO process (98% and 99% for copper and cadmium, respectively). NF, however, was capable of removing more than 90% of the copper ions existing in the feed water. The effectiveness of RO and NF membranes in treating wastewater containing more than one heavy metal was also investigated. The results showed that the RO membrane was capable of treating wastewater with an initial concentration of 500 ppm and reducing the ion concentration to about 3 ppm (99.4% removal), while the average removal efficiency of NF was 97%. The low level of the heavy metals concentration in the permeate implies that water with good quality could be reclaimed for further reuse.

Original languageEnglish
Pages (from-to)105-110
Number of pages6
JournalDesalination
Volume164
Issue number2
DOIs
Publication statusPublished - Apr 1 2004

Fingerprint

Reverse osmosis
Heavy Metals
Nanofiltration
Heavy metals
comparative study
Wastewater
heavy metal
Copper
membrane
Membranes
wastewater
Cadmium
Ions
copper
Osmosis membranes
cadmium
ion
Water
Nanofiltration membranes
Weathering

Keywords

  • Heavy metals
  • Industrial wastewater
  • Nanofiltration
  • Removal efficiency
  • Reverse osmosis

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)
  • Water Science and Technology
  • Mechanical Engineering

Cite this

Removal of heavy metals from wastewater by membrane processes : A comparative study. / Qdais, Hani Abu; Moussa, Hassan.

In: Desalination, Vol. 164, No. 2, 01.04.2004, p. 105-110.

Research output: Contribution to journalArticle

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