Petroleum oil removal by immobilized bacterial cells on polyurethane foam under different temperature conditions

RAIMONDO, ENZO; ALESSANDRELLO, MAURICIO; JUÁREZ TOMÁS, SILVINA; VULLO, DIANA; FERRERO, MARCELA

MARINE POLLUTION BULLETIN

PERGAMON-ELSEVIER SCIENCE LTD

Lugar: Amsterdam; Año: 2017 vol. 122 p. 156 - 160

0025-326X

In this work, a mixed biofilm composed by Pseudomonas monteiliiP26 and Gordonia sp. H19 was formed using polyurethane foam (PUF) asimmobilization support, for crude oil removal from artificial sea water.Fresh immobilized cells and immobilized cells that were stored at 4 °Cfor two months before use were assessed. The oil removal assays werecarried out at microcosm scale at 4, 15 and 30 °C. A viability loss of P.monteilii P26 was observed after the storage. The highest removal value(75%) was obtained at 30 °C after 7 days using fresh immobilized cells onPUF. Enhanced oil bioremoval was obtained at 4 °C and 15 °C with thepreviously stored immobilized cells compared to the fresh immobilizedcells. Crude oil sorption on the different systems was responsible forthe removal of 22-33% oil at the different temperatures. In conclusion,an economic tool for petroleum bioremediation is proposed