Description: Das Projekt "Bioleaching and bioremediation of vanadium in minerals, industrial wastes and soils" wird vom Umweltbundesamt gefördert und von Universität Basel, Umweltgeowissenschaften durchgeführt. Vanadium (V) plays a highly critical role in natural systems due to its potential toxicity to organisms. The pollution of V in the terrestrial environment is mostly due to mining activity and burning of fossil fuels. Today, assessing the impact of V enriched solids on the terrestrial environment is extremely difficult due to the limited knowledge about V biogeochemistry. Panzhihua in Chinese province Sichuang is a region abundant with V enriched ores. Due to mining and refining activities, Panzhihua region has a serious V pollution. Taking advantage of the environmental conditions in Panzhihua, we propose to investigate the V mobility in V enriched minerals, industrial wastes and contaminated soils obtained from Panzhihua with different methods, comprising sequential extraction, X-ray absorption spectroscopy and column leaching experiments. Concerning the important role of microorganisms in the biogeochemical cycles of trace elements, the influence of microbial activities, including Fe and S oxidation, Fe and V reduction, HCN and organic acid production, on V mobility in different solids will be studied in detail. Furthermore, attempts will be made to develop bioleaching/ bioremediation techniques based on the knowledge gained in this project. The thorough understanding of the fate of V in the terrestrial environment is urgently required for risk assessment and the implementation of strategies to cope with V pollution.
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Fossiler Brennstoff ? Vanadium ? Biogeochemie ? Schadstoffbelastung ? Röntgenspektroskopie ? Feststoff ? Industrieabfall ? Übriger Bergbau ? Verbrennung ? Mineralboden ? Bergbau ? Bioleaching ? Erz ? Raffination ? Redoxreaktion ? Technik ? Wirkungsanalyse ? Mikroorganismen ? Biologische Aktivität ? Wertermittlung ? Mineral ? Organismen ? Gebiet ? Naturpotential ? Verunreinigung ? Risikobewertung ? Absorptionskolonne ?
License: cc-by-nc-nd/4.0
Language: Englisch/English
Time ranges: 2011-10-01 - 2015-09-30
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