A5084479624- Metal Extraction and Bioleaching
- Minerals Flotation and Separation Techniques
- Adsorption and biosorption for pollutant removal
- Mine drainage and remediation techniques
- Extraction and Separation Processes
- Clay minerals and soil interactions
- Radioactive element chemistry and processing
- Water Quality Monitoring and Analysis
- Advanced oxidation water treatment
- Analytical chemistry methods development
- Heavy metals in environment
- Corrosion Behavior and Inhibition
- Chromium effects and bioremediation
- Algal biology and biofuel production
- Phosphorus and nutrient management
- Enzyme-mediated dye degradation
- Geochemistry and Elemental Analysis
- Hybrid Renewable Energy Systems
- Radioactivity and Radon Measurements
- Microbial Fuel Cells and Bioremediation
- Iron oxide chemistry and applications
- Wastewater Treatment and Nitrogen Removal
- Anaerobic Digestion and Biogas Production
- Advanced Photocatalysis Techniques
- Latin American Urban Studies
Consejo Nacional de Investigaciones Científicas y Técnicas
2011-2024
National University of General San Martín
2013-2024
Centro Científico Tecnológico - San Juan
2010-2021
Universidad Nacional de San Martín
2009-2014
Comisión Nacional de Energía Atómica
2010-2012
Universidad Nacional de La Plata
1990-2003
Centro de Investigación y Desarrollo en Criotecnología de Alimentos
1996-2001
National University of Quilmes
1997
The applicability of different photochemical advanced oxidation technologies (PAOTs), namely, direct UV-C photolysis, UV-C/H2O2 and UV-A/TiO2 heterogeneous photocatalysis (HP), photo-Fenton reactions (UV-A/H2O2/Fe2+, PF), for the degradation 300 mg L−1 nonylphenol ethoxylate-9 (NPE-9) in water is described. Different kinetic regimes each PAOT were found, as a result, comparative efficiencies could be obtained only from final parameters such NPE-9 conversion, TOC decrease, aldehyde production...
Montmorillonite clays and biomass have noticeable metal sorption capacity. Clays or are difficult to separate from the solution when used as sorbent materials. A methodology retain improve separation processes is generate clay biopolymers matrices fungal grown on a natural (MMT). The objective of this study characterize evaluate their uranium adsorption generated (BMMTs) were characterized through X-ray diffraction, measurement apparent diameter particles, electrophoretic mobility. Some...
Many industries generate a considerable amount of wastewater containing toxic and recalcitrant dyes. The main objective this research was to examine the biosorption capacity Reactive Blue 19 Red 141 by Antarctic yeast Debaryomyces hansenii F39A biomass. Some variables, including pH, dye concentration, adsorbent contact time, were studied. equilibrium sorption biomass increased with increasing initial concentration up 350 mg/l. Experimental isotherms fit Langmuir model maximum uptake (qmax)...
The interactions of the different components soils, such as living biomass and organic matter, with mineral surfaces are considerable interest due to their environmental reactivity potential for improving carbon storage in long-term. Also, microbial species known participate key soil processes, it has been hypothesized that microbes do not just sorb minerals but also actively bind may even play an important role formation. Nuclear magnetic resonance (NMR) spectroscopy is one most powerful...
We have investigated the magnetism of 0.5 at. % Fe3+-doped CuO samples by Mössbauer spectroscopy and magnetization studies. The Curie–Weiss-type behavior observed for low-field-magnetization measurements at temperatures higher than 220 K is interpreted as an uncompensation moments enhanced doping. results are compared with 1.2 Zn2+-doped previous ones doped divalent ions. Trivalent ion doping produces increase in susceptibility a peak TN. magnetic coupling Fe2+ ions to lattice found be about...
The microbial reduction of chromium(VI) to chromium(III) has been one the most widely studied forms metal bioremediation. Recently, we have found that Thiobacillus ferrooxidans and thiooxidans, growing on elemental sulphur, can indirectly promote by producing reducing agents such as sulphite thiosulphate, which abiotically reduce chromium(VI). Those species are acidophilic bacteria grow optimally at pH values lower than 4. However, those stabilised higher values. Thus, present paper reports...
Este artículo presenta resultados de una investigación transdisciplinaria que combina el conocimiento local con saberes las ciencias sociales y naturales propósito último comprender remediar los problemas socioambientales barrios hiperdegradados. La fue realizada en un barrio la Región Metropolitana Buenos Aires, Argentina. Como punto partida, desde 2008 se llevó a cabo trabajo etnográfico sobre percepción vecinos acerca asociados contaminación. En ese proceso, diseñó montó observatorio...
We investigated the dye-removal potential of a collection 61 cold-adapted yeasts from King George Island, Antarctica, on agar plates supplemented with 100 mg L-1 several textile dyes; among which isolates 81% decolorized Reactive Black 5 (RB-5), 56% decolorizing Orange 16, but only 26% doing so Blue 19 and Acid 74. Furthermore, we evaluated ligninolytic using 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic-acid) diammonium salt-, 3,5-dimethoxy-4-hydroxybenzaldehydazine-, or...