I. Ortiz

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Biofiltration was used to eliminate volatile organic compounds from air streams in bench-scale reactors inoculated with an adapted consortium. Organic and inert supports were tested on 100 days of operation. The supports were: peat, vermiculite, a mixture of vermiculite and activated carbon, tree bark and, porous glass Rashig rings. A mixture of benzene,(More)
Benzene, toluene, ethyl benzene and xylenes, known collectively as BTEX, are widespread contaminants, commonly found in soil, aquifers, and the atmosphere. BTEX degradation was evaluated as separate substrates and in mixtures, in liquid culture, and in packed biofilters with the filamentous fungus Pae-cilomyces variotii CBS115145. BTEX were differentially(More)
The stimulation of the microbial population by a more bioavailable supplementary carbon source and by a surfactant pretreatment was studied in petroleum hydrocarbon-polluted soils bioremediation. Two types of soils were used, Soil A which had been recently polluted and the aged Soil B. They contained 52.4 and 50.4 g of total petroleum hydrocarbons per kg of(More)
BACKGROUND: Mathematical models describing the physical, chemical and biological processes that take place in bioremediation are necessary to design and optimise these technologies. This work models the effect of toluene as a gaseous cosubstrate in the degradation of phenanthrene in soil, considering the consumption of pollutants, the production of(More)
Pervaporation is considered a clean and energetically efficient process used for a wide range of applications, working separately or integrated into a hybrid process. In this work, a mathematical model has been developed accounting for the mass transport phenomena under non-isothermal conditions with strong contribution of polarization concentration that(More)
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