Catalytic wet air oxidation of oilfield produced wastewater containing refractory organic pollutants over copper/cerium–manganese oxide
- 240 Downloads
The feasibility of the application of the catalytic wet air oxidation (CWAO) in two produced water containing refractory organic pollutants [total organic carbon (TOC) content 1,249 and 1,442 mg L−1] were studied. The produced waters were oxidized in a batch reactor using a (4 wt%) Cu/Mn–Ce–O catalyst, prepared by the co-precipitation of manganese and ceria nitrates, followed by wet impregnation of copper acetate. The efficiency of the CWAO of oilfield produced water was determined by TOC removal of the tested wastewater, the Pseudomonas putida growth inhibition test was also accomplished. Approximately 80 % in TOC reduction was achieved during wet oxidation over the catalyst at 433 K and an oxygen partial pressure of 1.0 MPa. No leaching of Cu or Mn was detected.
KeywordsCatalytic wet air oxidation Oilfield produced water Cu/Mn–Ce–O catalyst TOC Pseudomonas putida growth inhibition test
Thanks are given to the FONACIT (Project No. QF-10) and to PDVSA-INTEVEP (Project No. 2001-00139/2003-056) for financial help, which allowed us to carry out the research reported here.
- 1.Dune K, Ezeilo F (2012) Petrol Technol Dev J 1:1–6Google Scholar
- 2.Environmental Protection Agency, EPA (1979) Oil and Gas extraction (O&G) effluent guidelines and standards. 40CFR Part 435.11 (bb)Google Scholar
- 4.Yang Y, Zhang X, Wang Z (2002) Water Sci Technol 46:165–170Google Scholar
- 12.Arena F, Italiano C, Spadaro L (2012) Appl Catal B 115–116:34–336Google Scholar
- 22.ISO 10712-1995-12-15 (1995) Water Quality–Pseudomonas putida Growth Inhibition Test (Pseudomonas Cell Multiplication Inhibition Test), 1st Ed., ISO, Geneve, SwitzerlandGoogle Scholar
- 23.Chapelle F (1993) Ground-water microbiology and geochemistry. Wiley, New Jersey, pp 349–352Google Scholar
- 24.Neff J, Sour T, Maciolek N (1992) Produced water 2: environmental issues and mitigation technologies. Plenum Press, New York, pp 502–503Google Scholar
- 29.Wagner C, Riggs W, Davis L, Moulder J, Muilenberg G (1979) Handbook of X-ray Photoelectron Spectroscopy. Perkin-Elmer Corp, USAGoogle Scholar
- 33.Qi G, Yang R (2003) Chem Commun 7:848–849Google Scholar