SPECIATION OF HEAVY METALS IN SURFACE WATERS POLLUTED BY ANTHROPOGENIC ACTIVITIES

In this work we present the results of a methodological research on the chemical speciation of heavy metals found in surface waters of an area polluted by mining activities (in the Western Carpathians). The surface water samples were collected in two seasons (summer and fall). Each time were perform...

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Main Authors: Constantin Luca, Elena Bîrsan
Format: Article
Language:English
Published: Alma Mater Publishing House "Vasile Alecsandri" University of Bacau 2010-12-01
Series:Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry
Subjects:
Online Access:http://pubs.ub.ro/dwnl.php?id=CSCC6201011V04S01A0004
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author Constantin Luca
Elena Bîrsan
author_facet Constantin Luca
Elena Bîrsan
author_sort Constantin Luca
collection DOAJ
description In this work we present the results of a methodological research on the chemical speciation of heavy metals found in surface waters of an area polluted by mining activities (in the Western Carpathians). The surface water samples were collected in two seasons (summer and fall). Each time were performed in situ physical-chemical measurements (pH, Eh, conductivity, temperature) and analytical determination of total concentrations of some metals (manganese, copper, zinc, iron, cadmium) and anions (SO42-, Cl-, PO43-, NO3-). Analyze of chemical speciation of these metals was made using the PHREEQC program which allowed us to determine the distribution of studied elements. The concordance of the results obtained with this program with thermodynamic predictions arising from potential - pH equilibrium diagrams - Pourbaix type justify the compatibility between the program calculation and experimental data.
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spelling doaj.art-eb50e03b4f394dd5934e6c932aad484b2022-12-22T01:36:42ZengAlma Mater Publishing House "Vasile Alecsandri" University of BacauScientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry1582-540X2010-12-01114439448SPECIATION OF HEAVY METALS IN SURFACE WATERS POLLUTED BY ANTHROPOGENIC ACTIVITIESConstantin LucaElena BîrsanIn this work we present the results of a methodological research on the chemical speciation of heavy metals found in surface waters of an area polluted by mining activities (in the Western Carpathians). The surface water samples were collected in two seasons (summer and fall). Each time were performed in situ physical-chemical measurements (pH, Eh, conductivity, temperature) and analytical determination of total concentrations of some metals (manganese, copper, zinc, iron, cadmium) and anions (SO42-, Cl-, PO43-, NO3-). Analyze of chemical speciation of these metals was made using the PHREEQC program which allowed us to determine the distribution of studied elements. The concordance of the results obtained with this program with thermodynamic predictions arising from potential - pH equilibrium diagrams - Pourbaix type justify the compatibility between the program calculation and experimental data.http://pubs.ub.ro/dwnl.php?id=CSCC6201011V04S01A0004heavy metalsspeciationmining activitiesPourbaix type diagram
spellingShingle Constantin Luca
Elena Bîrsan
SPECIATION OF HEAVY METALS IN SURFACE WATERS POLLUTED BY ANTHROPOGENIC ACTIVITIES
Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry
heavy metals
speciation
mining activities
Pourbaix type diagram
title SPECIATION OF HEAVY METALS IN SURFACE WATERS POLLUTED BY ANTHROPOGENIC ACTIVITIES
title_full SPECIATION OF HEAVY METALS IN SURFACE WATERS POLLUTED BY ANTHROPOGENIC ACTIVITIES
title_fullStr SPECIATION OF HEAVY METALS IN SURFACE WATERS POLLUTED BY ANTHROPOGENIC ACTIVITIES
title_full_unstemmed SPECIATION OF HEAVY METALS IN SURFACE WATERS POLLUTED BY ANTHROPOGENIC ACTIVITIES
title_short SPECIATION OF HEAVY METALS IN SURFACE WATERS POLLUTED BY ANTHROPOGENIC ACTIVITIES
title_sort speciation of heavy metals in surface waters polluted by anthropogenic activities
topic heavy metals
speciation
mining activities
Pourbaix type diagram
url http://pubs.ub.ro/dwnl.php?id=CSCC6201011V04S01A0004
work_keys_str_mv AT constantinluca speciationofheavymetalsinsurfacewaterspollutedbyanthropogenicactivities
AT elenabirsan speciationofheavymetalsinsurfacewaterspollutedbyanthropogenicactivities