Editorial Board

Editor-in-Chief: Petre Gastescu, Hyperion University of Bucharest (Romania)
Managing Editor: Petre Bretcan, Valahia University of Targoviste (Romania)
Volume 9(2) / 2015
ISSN: 1844-6477 (print version)
ISSN: 2284-5305 (electronic version)

 

 

  

 

PEAT WETLAND AS A NATURAL FILTER OF EFFLUENTS FROM ADJACENT INDUSTRIAL AREAS

 

József DEZSO, Gabriella TÓTH, Dénes LÓCZY

Department of Physical and Environmental Geography, Institute of Geography, University of Pécs, Ifjúság útja 6. H-7624 Pécs, Hungary Emails: dejozsi@gamma.ttk.pte.hu, toth.gabi90@gmail.com, loczyd@gamma.ttk.pte.hu

Abstract

The main objective of the project is the study of a peat wetland functioning as recipient of effluents from former and present-day industrial activities. The investigation was focused on heavy metal contaminations and their probable mobilization or fixation. The studied peatbog is a typical Eastern European wetland, located in Hungary on the border between medium mountains (Bakony Mountains) and a Neogene basin (the Sárrét, an area under nature conservation). Watercourses and prevailing air currents can transport contaminants from industrial areas to the wetland. At first the basic parameters of surface waters and subsurface conditions (soils, groundwater) were investigated. These parameters (EC, Cl) are possible indicators of contamination. Subsequently, the amounts of heavy metals (Cd, Pb) extracted by solution in two steps (HCl, CaCl2) were measured using atomic absorption spectroscopy (AAS). The extracted values indicate what amounts of which elements could be mobilized by human impact and/or production of humic acids, which occasionally emerges during the remediation works. The total heavy metal concentrations in the samples were investigated by X-ray fluorescence method. Based on the investigation, the peatbog is claimed to function as a natural filter.

Keywords: peatbog, heavy metal contamination, absorption, sequential extraction

  
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