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Year: 2010Subject: heavy metalsFiles: Metadata onlyclear all
Showing 1-8 of 8 records
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10th International Multidisciplinary Scientific GeoConference SGEM2010
Publication

HEAVY METAL CONTENTS OF BARLEY (HORDEUM SP.) PLANTS AT AREAS AROUND THE CITY

(SGEM Scientific GeoConference, 2010, Topal, Ali, Kahraman, Ali)

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This study was conducted to analyze concentrations of heavy metals in plants and soils of barley fields which were growing around of Konya city (Central Anatolia, Turkey). The samples of plants and soils were collected from different areas of two directions (North and South) and two distances (0 and 50 km) of the city. The samples of plants were analyzed for heavy metals (Pb, Zn, Cu, Cr, Ni) measured by ICP-OES. The samples of soils were also analyzed for basic chemical properties (pH, humus and carbonate contents...

Ecology and Environmental Protection2010
10th International Multidisciplinary Scientific GeoConference SGEM2010
Publication

REMOVAL OF Hg2+ AND Pb2+ IONS FROM AQUEOUS SOLUTIONS ON CORN COBS BIOMATERIALS II. KINETICS AND SORPTION MECHANISM

(SGEM Scientific GeoConference, 2010, Stefan, Daniela Simina, Belcu, Mihai, Meghea, Irina)

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The presence of heavy metals in environmental factors remains among the most important concerns at national and international levels, while at the same time novel biomaterials usually derived from agricultural wastes are designed and tested for their removal below admitted limits. In this respect efficiency of biosorption of Hg2+ and Pb2+ on corn cobs have been studied for different working parameters: initial solution concentrations of heavy metals, particle size of biomass and temperature. The kinetic model for ...

Ecology and Environmental Protection2010
10th International Multidisciplinary Scientific GeoConference SGEM2010
Publication

SEM-EDX IDENTIFICATION OF PARTICLES FROM FOG IN AN INDUSTRIALLY POLLUTED REGION OF CZECH REPUBLIC

(SGEM Scientific GeoConference, 2010, Stoyanova, Valeria, Shoumkova, Annie, Fisak, Jaroslav, Tsacheva, Tsenka)

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The properties of individual particles, rather than bulk aerosol characteristics, determine the environmental and health impact of the atmospheric pollutants. Single particles have been sampled during 30 fog episodes at the mount Milesovka (837 m a.s.l.) located in the industrially polluted area of north Bohemian brown coalfield. More than 2000 of these solid, water insoluble particles, collected from May 2006 till July 2007, have been analyzed by SEM-EDX and classified according to their shape, size and elemental...

Air Pollution and Climate Change2010
10th International Multidisciplinary Scientific GeoConference SGEM2010
Publication

MAGNETIC METHODS FOR DELINEATION OF HEAVY METAL POLLUTION IN BURGAS REGION

(SGEM Scientific GeoConference, 2010, N. Jordanova, D. Jordanova)

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Magnetic susceptibility mapping and rock magnetic characterization of topsoils from southeastern Bulgaria near the Black sea coast was carried out for delineation of the anthropogenic pollution. The presence of strongly magnetic parent material (volcanites, volcanoclastic sediments) and various soil types (Vertisols, Luvisols, Chromic Cambisols, Planosols, Fluvisols) were taken into account by using normalization of the field susceptibilities to the median susceptibility value, calculated separately for each soil ...

Applied and Environmental Geophysics2010
10th International Multidisciplinary Scientific GeoConference SGEM2010
Publication

HEAVY METAL CONTENTS OF BARLEY (HORDEUM SP.) PLANTS AT AREAS AROUND THE MAIN ROADS

(SGEM Scientific GeoConference, 2010, Topal, Ali, Kahraman, Ali)

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This study was conducted to analyze concentrations of heavy metals in plants and soils of barley fields standing along main roads of Konya city (Central Anatolia, Turkey). The samples of plants and soils were collected from different areas of two distances (0 and 1 km) of main roads and analyzed for heavy metals (Pb, Zn, Cu, Cr, Ni) measured by ICP-OES. The samples of soils were also analyzed for basic chemical properties (pH, humus and carbonate contents). The results revealed a large variability within the nearn...

Ecology and Environmental Protection2010
10th International Multidisciplinary Scientific GeoConference SGEM2010
Publication

HEAVY METAL VARIATION IN THE SOILS ASSOCIATED WITH THE BALAN MINING PERIMETER

(SGEM Scientific GeoConference, 2010, Balint, AS Ramona)

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Balan perimeter is one of the most representative mining zones of the Eastern Carpathians, well known for its copper ores, represented mainly by massive and/or disseminated pyrite and chalcopyrite concordantly interlayered with low grade Cambrian metamorphites of the Tulghes Group. The chemical study of these accumulations highlighted the presence of elements (Cu, Pb, Zn, Ni, Co, Mn) which, by geochemical characteristics and behaviour, can be included in the category of heavy metals and which, by build-up and/or m...

Oil and Gas Exploration2010
10th International Multidisciplinary Scientific GeoConference SGEM2010
Publication

PHYSICOCHEMICAL CHARACTERIZATION OF PYRITE CINDERS

(SGEM Scientific GeoConference, 2010, Shoumkova, Annie, Stoyanova, Valeria)

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A detailed investigation of physical and chemical properties of pyrite cinders from sulfuric acid production has been carried out by employing variety of analytical methods and techniques, including ICP-MS, XRL, XRD, M\"ossbauer Spectroscopy, SEM-EDX, SQUID, TGA, etc. The study is focused on the investigation of the content and distribution of about 50 micro- and trace elements in magnetically separated fractions, and among/within individual particles. It has been found that many heavy metals exist in easily avail...

Recycling2010
10th International Multidisciplinary Scientific GeoConference SGEM2010
Publication

SORBENTS OF HEAVY METALS BASED ON COMBINATION OF LOW RANK COALS AND CHITOSAN

(SGEM Scientific GeoConference, 2010, Havelcová, Martina)

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The study has been aimed at development of cheap sorbents of toxic heavy metals and radionuclides based on low rank, low energetic coals in combination with chitosan for use in treatment of both waste and drinking water and construction of active geochemical barriers. Sorbents based on lignite and naturally oxidized lignite (oxihumolite, leonardite) were prepared, both raw and impregnated with chitosan from its solution in oxalic acid. The sorbents were characterized by chemical and structural analyses. Their sorp...

Ecology and Environmental Protection2010
Showing 1-8 of 8 records
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