| Literature DB >> 25239685 |
Syllos Santos da Silva1, Osvaldo Chiavone-Filho1, Eduardo Lins de Barros Neto1, Edson Luiz Foletto2.
Abstract
The present work investigates the conjugation of flotation and photo-Fenton techniques on oil removal performance from oilfield produced water. The experiments were conducted in a column flotation and annular lamp reactor for induced air flotation and photodegradation steps, respectively. A nonionic surfactant was used as a flotation agent. The flotation experimental data were analyzed in terms of a first-order kinetic rate model. Two experimental designs were employed to evaluate the oil removal efficiency: fractional experimental design and central composite rotational design (CCRD). Overall oil removal of 99% was reached in the optimum experimental condition after 10 min of flotation followed by 45 min of photo-Fenton. The results of the conjugation of induced air flotation and photo-Fenton processes allowed meeting the wastewater limits established by the legislations for disposal.Entities:
Keywords: Flotation; Integration; Oilfield; Photo-Fenton; Produced water
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Year: 2014 PMID： 25239685 DOI： 10.1016/j.jenvman.2014.08.021
Source DB: PubMed Journal: J Environ Manage ISSN： 0301-4797 Impact factor: 6.789