نتایج جستجو برای: lakan pb and zn mine
تعداد نتایج: 16847091 فیلتر نتایج به سال:
Plants of an ecotype of Silene 6ulgaris (Caryophyllaceae) originating from a Cd-Pb-Zn mine at Plombière (Belgium) were grown on 15 polymetallic soils for a full life-cycle to investigate physiological responses which can help explain previously reported disorders in plants. The degree of regulation of the metal concentration in the young seedlings was a very reliable indicator of the subsequent...
Land reclamation is a common practice leading to the restoration of areas affected by industrial activity. Soil studies in reclaimed are very useful determine effectiveness works. The goal study was investigate soil properties, mineral composition, total concentrations Zn, Pb, Cd and As chemical forms these elements order assess success land abandoned mine tailing disposal site “Trzebionka” Zn-...
Fyrouzeh mine is located about 55 km northwest of Nyshabour in the Provice of Khorasan Razavi. The exposed rocks are mainly volcanic and intrusive with intermediate composition and all of them are altered. This mine is the first type of IOCG reconized in Iran with Cu-Au-LREE-U. Besides Cu-Au-U, this area shows As, Mo, Zn and Th anomalies. Geochemical evaluation of stream sediment with regard to...
Acute Effects of Lead on the Renal Handling of Zinc in Dogs. VICTERY, W., SOIFER, N. E., WEISS, J. S., AND VANDER, A. J. (1981). Toxicol. Appl. Pharmacol. 61, 358-367. Urinary zinc excretion was monitored in anesthetized dogs before and during 4 hr after acute exposure to lead (doses: 0.3 mg Pb (as acetate)/kg as iv prime, followed by infusion of 0.057 mg Pb/min; 3mg Pb/kg, followed by 0.57 mg ...
Abstract The objective of this work is to assess the contamination Essouk stream, under acid drainage from Sidi Kambar mine (southwest Skikda, Algeria), which has been widely exploited during previous decades. methodology was conducted control current state water chemistry, its evolution in space and time according variation physicochemical parameters content trace metals (Pb, Fe, Zn). In gener...
• Hydrozincite exhibits significant control on heavy metal mobility in other abandoned mining sites. No morphological similarity between biomineralized hydrozincite and Victoria Mine. Microbiological effects attenuation aqueous geochemistry are negligible. Microbial growth patterns community structure represent oligotrophic conditions. Large-scale Zn, Pb, Cu, Fe Ag ceased over 70 years ago the ...
Here we report the draft genome sequence of the acid-tolerant Desulfovibrio sp. DV isolated from the sediments of a Pb-Zn mine tailings dam in the Chita region, Russia. The draft genome has a size of 4.9 Mb and encodes multiple K+-transporters and proton-consuming decarboxylases. The phylogenetic analysis based on concatenated ribosomal proteins revealed that strain DV clusters together with th...
The contents of nine elements (As, Cd, Cr, Cu, Hg, Ni, Pb, Sb and Zn) have been assayed in the farming soils of Suszec commune (southern Poland). This area is affected by the main industrial centre of Poland (the Upper Silesian Industrial Region), the Czech Republic (Trzyniec smelter) and local contamination sources (coal mine). The contamination of the soils was assessed on the basis of geoacc...
The presence of Eriophorum angustifolium in mine tailings of pyrite maintains a neutral pH, despite weathering, thus lowering the release of toxic elements into acid mine drainage water. We investigated if the presence of slightly elevated levels of free toxic elements triggers the plant rhizosphere to change the pH towards neutral by increasing organic acid content. Plants were treated with a ...
In the carbonate soils contaminated by a toxic spill from a pyrite mine (Aznalcóllar, southern Spain), a study was made of a thin layer (thickness = 4 mm) of polluted soil located between the pyrite tailings and the underlying soil. This layer, reddish-yellow in color due to a high Fe content, formed when sulfates (from the oxidation of sulfides) infiltrated the soil, causing acidification (to ...
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