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Mariano,Adriano Pinto; Bonotto,Daniel Marcos; Angelis,Dejanira de Franceschi de; Pirôllo,Maria Paula Santos; Contiero,Jonas. |
This work aimed to evaluate the capability of different microorganisms to degrade commercial diesel oil in comparison to a weathered diesel oil collected from the groundwater at a petrol station. Two microbiological methods were used for the biodegradability assessment: the technique based on the redox indicator 2,6 - dichlorophenol indophenol (DCPIP) and soil respirometric experiments using biometer flasks. In the former we tested the bacterial cultures Staphylococcus hominis, Kocuria palustris, Pseudomonas aeruginosa LBI, Ochrobactrum anthropi and Bacillus cereus, a commercial inoculum, consortia obtained from soil and groundwater contaminated with hydrocarbons and a consortium from an uncontaminated area. In the respirometric experiments it was... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodegradability; Bioremediation; Commercial oil diesel; Weathered diesel oil. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000100028 |
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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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Borges,Ana Kleiber Pessoa; Tauk-Tornisielo,Sâmia Maria; Domingos,Roberto Naves; Angelis,Dejanira de Franceschi de. |
The aim of this work was to study the constructed wetland system for the treatment of water from the Corumbataí river simulated on a laboratory scale. The parameters analyzed at different points of the system were ammonia, biochemical demand for oxygen (BDO), chemical demand for oxygen (CDO), chlorides, apparent color, conductivity, dissolved oxygen, magnesium (Mg), sodium (Na), potassium (K), silicon (Si), total phosphorous, total coliforms and Escherichia coli, total dissolved solids (TDS), turbidity, and macrophyte biomass. The results demonstrated that this alternative water treatment system was effective in removing the microorganisms (total coliforms and E. coli), among other parameters analyzed, for varying periods of the treatment, promoting... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquatic macrophytes; Filtering soil; Microfiltration; Bioreactor; Microorganisms. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000600024 |
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