Treating Heavy Oil Wastewater for Beneficial Use by Integrated Technology of Bio-Oxidation and RO

LI Jingting, LIU Xiaobo

Abstract


Heavy oil exploitation wastewater is characterized by its high concentration of emulsified oil, high salinity, high temperature and complex chemical components. This paper discuss a successful pilot-scale demonstration application of a unique technology integrating heat exchanger, gas floatation, biological contact oxygen, filtration, ultra-filtration, reverse osmosis at Chenzhuang oilfield. The scale of the process was about 360 m3/d, and the performance of the treatment process, the effectiveness of the technology for removal of oil and for controlling RO membranes fouling, and the economic effect are also discussed. Operation results show that the biological contact oxidation--ultra filtration process can reduce the oil contents to less than 0.5 mg/L and TDS to less than 3. The conductivity of RO effluent is below 456 μS·cm-1, the treated water can meet the required standard for steam-injected boiler, and it can also be used to prepare polymer solution for viscosity keeping.

Key words: Heavy oil wastewater; Biological contact oxygen; RO; Steam boiler; Polymer solution


Keywords


Heavy oil wastewater; Biological contact oxygen; RO; Steam boiler; Polymer solution

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References


[1] Pak, A., & Mohammadi, T. (2008). Wastewater Treatment of Desalting Units. Desalination, 222, 249–254

[2] Ma, S. H., Zhang, S. S., & Zhou. J. (2012). Reutilization Process Design of Baikouquan Heavy Oil Sewage. Chemical Engineer, 203, 39-42.

[3] Kharaka, Y. K., Leong, L. Y. C., Doran, G., & Breit, G. N. (1998). Can Produced Water be Reclaimed? In the Proceedings of the 5th International Petroleum Environmental Conference, Albuquerque, NM.

[4] Xu, P., & Drewes, J. E. (2006). Viability of Nanofiltration and Ultra-Low Pressure Reverse Osmosis Membranes for Multi-Beneficial Use of Methane Produced Water. Sep. Purif. Technol., 52(1), 67.

[5] Gulde, C. M. (2003). Performance of a Hybrid Reverse Osmosis-Constructed Wetland Treatment System for Brackish Oil Field Produced Water. Water Res., 37, 705-713.

[6] Wu, X. L., Huang, X. R., & Deng, Y. (2012). Status and Prospects of the Seawater Desalinization Technology. Contemporary Chemical Industry, 141, 964-967.

[7] Qiao, X. L., Zhang, Z. J., Yu, J. L., & Ye, X. F. (2008). Performance Characteristics of a Hybrid Membrane Pilot-Scale Plant for Oilfield-Produced Wastewater. Desalination, 225, 113-122.

[8] Dou, M. W., Su, B. W., Gao, X. L., & Gao, C. J. (2011). Progress in Membrane Technology for Treatment of Oilfield Produced Water. Environmental Science and Technology, 34(8), 124-130.

[9] Ang, W. S., Lee, S., & Elimelech, M. (2006). Chemical and Physical Aspects of Cleaning of Organic-Fouled Reverse Osmosis Membranes. J. Membrane Sci., 217, 198-210.




DOI: http://dx.doi.org/10.3968%2Fj.aped.1925543820130501.1156

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