AVALIACAO DA ELETROFLOTACAO NO TRATAMENTO DE AGUA PRODUZIDA DE PETRoLEO/EVALUATION OF THE ELECTROFLOTATION ON PRODUCED WATER TREATMENT

The processes of extraction, transportation and refining of oil generate wastewater with a considerable range of organic and inorganic waste, such as hydrocarbons, phenols, heavy metals, ammonia, among others. Therefore, it is necessary to treat such wastewaters before releasing it to the environmen...

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Bibliographic Details
Published in:Holos (Natal, RN) RN), 2014-01, Vol.30 (3), p.212-212
Main Authors: Cunha, G S, Dutra, A J B
Format: Article
Language:English
Online Access:Get full text
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Summary:The processes of extraction, transportation and refining of oil generate wastewater with a considerable range of organic and inorganic waste, such as hydrocarbons, phenols, heavy metals, ammonia, among others. Therefore, it is necessary to treat such wastewaters before releasing it to the environment or reuse it in some stage of production. Due to the high efficiency and compactability, electrochemical technologies have shown to be an interesting alternative in the treatment of effluents, particularly the electroflotation. The objective of this work was to test electroflotation, as an alternative to the treatment of original samples of produced water from oil, aiming at the removal of organic matter. The Chemical Oxygen Demand values before and after the test column were reported. It was used as cathode, stainless steel, and as anode, titanium coated with ruthenium oxide. The applied voltages varied between 2.5 and 5.5 v. The flotation times were 10, 20, 30, 40 and 50 min. Results shown a considerable decrease in contaminant load after 50 minutes of flotation under voltages around 5,5 v.
ISSN:1807-1600