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Organic matter biodegradation and metal behaviour in contaminated freshwater sediments

Author

Listed:
  • Socorro Pedroza-Benitez
  • Anne-Laure Bussy
  • Icela D. Barcelo-Quintal
  • Edgar Lopez-Galvan
  • Pedro Avila-Perez

Abstract

Purpose. The interaction of biodegradable organic matter with metals was studied in sediments of a highly contaminated river of Mexico. Design/methodology/approach. A six fraction speciation procedure was performed on surface sediments, before and after two weeks of microbial activity, to determine metal-sediment association modifications. Findings. Associations of Cd, Cu and Pb evolved toward less available forms. Fe showed an opposite behaviour. The redox conditions showed more impact than the biodegradability of organic compounds on the results. Research limitations/implications. Longer experiments may generate additional metal movements. Originality/value. The results should serve to improve water quality of multi-contaminated rivers.

Suggested Citation

  • Socorro Pedroza-Benitez & Anne-Laure Bussy & Icela D. Barcelo-Quintal & Edgar Lopez-Galvan & Pedro Avila-Perez, 2010. "Organic matter biodegradation and metal behaviour in contaminated freshwater sediments," International Journal of Environmental Technology and Management, Inderscience Enterprises Ltd, vol. 12(1), pages 85-94.
    • Handle: RePEc:ids:ijetma:v:12:y:2010:i:1:p:85-94
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