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

作者：Alessandrello Mauricio J^*; Juarez Tomas Maria S; Raimondo Enzo E; Vullo Diana L; Ferrero Marcela A

来源：Marine Pollution Bulletin, 2017, 122(1-2): 156-160.

DOI：10.1016/j.marpolbul.2017.06.040

• Petroleum oil
• Biofilm
• Bioremoval
• Polyurethane foam
• Bioremediation
• Bacterial immobilization

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

• 出版日期2017-9-15