Experimental Study on Softening Treatment of Weak Acid Hydrogen Type Resin to Viscous Oil Sewage

Abstract:

This essay presents an experimental study about softening effect of weak acid hydrogen type resin on viscous oil sewage of an oil production plant through ion exchange technique, and the test results show that: when the first level of ion exchange column adopts weak acid hydrogen type resin and the second level adopts weak acid sodium type resin, pH value of final effluent is 6.7~7.0, and average hardness is 0.02 mg·L^-1; when the first-level resin is invalid and regenerated, with washing for 12h at the flow rate of 10BV/H by softened water after acid feeding, about 50% of the weak acid hydrogen type resin is transformed into sodium type, and after being put into operation, the pH value the hardness and other indexes of the first-level and second-level effluent conform to national requirements. It is thus clear that: compared with the traditional process of the first-level exchange column adopting the weak acid sodium type resin, the first-level exchange column adopting the weak acid hydrogen type resin has better softening effect on viscous oil sewage, reduces alkali transformation steps during regeneration, and reduces alkali cost and environmental pollution.

• Periodical: Applied Mechanics and Materials (Volume 535)
• Pages: 692-700
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.535.692
• Online since: February 2014
• Authors: Xiao Ge, Ying Xu, Bin Dong, Zu Wen Liu
• Keywords: Hydrogen Type, Softening, Viscous Oil Sewage, Weak Acid Resin

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