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Removal of heavy metal ions from wastewaters using natural clays

H. Bedelean, A. Maicneanu, S. Burca and M. Stanca
Removal of heavy metal ions from wastewaters using natural clays (in MECC'08, a window into the Mid-European Clay Community, Javier Cuadros (editor), Katarzyna Gorniak (editor), Krzysztof Bahranowski (editor) and Joao Labrincha (editor))
Clay Minerals (December 2009) 44 (4): 487-495

Abstract

A bentonite sample from the Petresti Deposit, Cluj County (Romania), was used to remove heavy-metal ions (Cd (super 2+) , Pb (super 2+) , Cr (super 3+) ) from wastewaters. A representative sample of bentonite (P) was characterized using the Brunauer-Emmett-Teller (BET) method, wet chemical analyses, X-ray diffraction (XRD) and Fourier-transform infrared (FTIR) spectroscopy. The bentonite deposit from Petresti is present at the contact between Upper Jurassic limestones and basaltic andesites with subordinate basalt bodies. These rocks are composed of clay minerals (mainly smectite), with opal, quartz, feldspar and mica/illite as minor phases. The bentonite sample was used in powdered form (d < 0.2 mm) without any chemical treatment. The influence of the working regime, static and dynamic, on the process efficiency was studied using monocomponent synthetic wastewaters containing Cd, Pb and Cr ions. The bentonite sample proved to be efficient for the removal of these heavy-metal ions; removal efficiencies up to 100% (lead removal) were achieved.


ISSN: 0009-8558
EISSN: 1471-8030
Coden: CLMIAF
Serial Title: Clay Minerals
Serial Volume: 44
Serial Issue: 4
Title: Removal of heavy metal ions from wastewaters using natural clays
Title: MECC'08, a window into the Mid-European Clay Community
Author(s): Bedelean, H.Maicneanu, A.Burca, S.Stanca, M.
Author(s): Cuadros, Javiereditor
Author(s): Gorniak, Katarzynaeditor
Author(s): Bahranowski, Krzysztofeditor
Author(s): Labrincha, Joaoeditor
Affiliation: Babes-Bolyai' University, Faculty of Biology and Geology, Department of Geology, Cluj-Napoca, Romania
Pages: 487-495
Published: 200912
Text Language: English
Publisher: Mineralogical Society, London, United Kingdom
Meeting name: 4 (super th) Mid-European clay conference (MECC'08)
Meeting location: Zakopane, POL, Poland
Meeting date: 20080922Sept. 22-27, 2008
References: 37
Accession Number: 2010-023297
Categories: Sedimentary petrologyEnvironmental geology
Document Type: Serial Conference document
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201014
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