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Evaluation of the use of vinasse as a biostimulation agent for the biodegradation of oily sludge in soil BABT
Crivelaro,Sérgio Henrique Rezende; Mariano,Adriano Pinto; Furlan,Luis Tadeu; Gonçalves,Renato Almeida; Seabra,Paulo Negrais; Angelis,Dejanira de Franceschi de.
This work aimed to study the effect of vinasse on the biodegradation in soil of oily sludge from the Replan-Petrobras oil refinery. The Bartha respirometric method was used to verify the efficiency of the treatments with soil, oily sludge (7 and 14% m/m) and soil moisture adjustment with or without vinasse (0.11 mL/g dry soil) for 121 days. Although an increase in the soil microbial population was obtained with the vinasse, it demonstrated not to be adequate to enhance the biodegradation efficiency of the oily sludge in soil, since there was no difference between the CO2 produced from treatments with or without vinasse after the complete consumption of the vinasse. Thus, the use of vinasse as an amendment to biodegradation processes showed not to be...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodegradation; Soil; Oily sludge; Vinasse; Landfarming.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000500027
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The use of vinasse as an amendment to ex-situ bioremediation of soil and groundwater contaminated with diesel oil BABT
Mariano,Adriano Pinto; Crivelaro,Sérgio Henrique Rezende; Angelis,Dejanira de Franceschi de; Bonotto,Daniel Marcos.
This work investigated the possibility of using vinasse as an amendment in ex-situ bioremediation processes. Groundwater and soil samples were collected at petrol stations. The soil bioremediation was simulated in Bartha biometer flasks, used to measure the microbial CO2 production, during 48 days, where vinasse was added at a concentration of 33 mL.Kg-1of soil. Biodegradation efficiency was also measured by quantifying the total petroleum hydrocarbons (TPH) by gas chromatography. The groundwater bioremediation was carried out in laboratory experiments simulating aerated (bioreactors) and not aerated (BOD flasks) conditions. In both the cases, the concentration of vinasse was 5 % (v/v) and different physicochemical parameters were evaluated during 20 days....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioremediation; Soil; Groundwater; Diesel oil; Biostimulation; Vinasse.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400030
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