Investigate the possibility of using (ethylene terephthalate) Grafted – 2- Hydroxy Propyl Methacrylate in wastewater treatment to control the contamination of lead and cadmium in the aquatic environment

Document Type : Animal environment

Authors

1 Department of soil science, Faculty of Agriculture, Islamic Azad University, Branch Khorasgan, P.O. Box: 81595-158, Isfahan, Iran

2 Department of chemistry, Faculty of sciences, Amirkabir university of Technology, P.O. Box: 15875-4413, Tehran, Iran

3 Department of soil science, Faculty of Agriculture, Islamic Azad University, Branch Khorasgan, P.O.Box: 81595-158, Isfahan, Iran

Abstract

Today, freshwater ecosystems polluted by heavy metals such as cadmium(cd2+) and lead(Pb2+) in Iran  and  other  countries is  an important environmental  problem.  Discharge  of  sewage  and waste water into surface waters is one of the most important sources of heavy metals pollutions. Surface adsorption of heavy metals by polymer from waste water is one of the most recommended methods for water resource filtration. Poly (ethylene terephthalate) – Grafted – 2- Hydroxy Propyl Methacrylate  was  used  as  surface  adsorbent  in  this  study.  The  properties  of  produced  adsorbent were studied. The results were showed that the contact between 1M NaOH and sorbent was not significant change in sorption properties. The adsorbent were used for filtration of Cd2+ and Pb2+ ions from pure laboratory solution and Isfahan steel factory wastewater. The results were showed that the maximum adsorption capacity for Cd2+ and Pb2+ were 23.44 and 20.9 mg/g respectively. The comparison of filtration Cd2+ and Pb2+ from pure laboratory solution and Isfahan steel factory wastewater were showed that the amount of Cd2+ filtration from both solutions were equal. The removal  of  Pb2+  from  Isfahan  steel  factory  wastewater  was  equal  54%  of adsorption  amounts from  pure  laboratory  solution.  The  results  proved  that  the  produced  adsorbent  was useful for removal of cd2+ and Pb2+ from wastewater.

Keywords

Journal of Animal Environment
Volume 5, Issue 3
November 2012
Pages 25-33

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