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Experimental Study of Treating Petroleum Refinery Wastewater by Vacuum Distillation

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Abstract:

Vacuum distillation (VD) by NaOH was used for treatment of petroleum refinery wastewater, and the optimal experimental conditions including operation vacuum degree, initial pH, feeding process were also investigated. Chemical oxygen demand (COD), conductivity and pH value were utilized to estimate the removal efficiency for treatment of refinery wastewater. Based on experimental results, it can be concluded that NaOH displays higher efficiency for the treatment of refinery wastewater, the pellucid effluents with satisfied COD removal efficiency (99%) and low salinity were obtained in fully batch process at operation vacuum degree of-0.085 MPa, operation time of 50 min, initial pH of 11, and the corresponding pH values of effluents varied from 7 to 9. Thus, in view of fine COD and mineralization removal efficiency, the VD technology is an effective approach to treat petroleum refinery wastewater.

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Periodical:

Advanced Materials Research (Volumes 955-959)

Pages:

371-375

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.955-959.371

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Cite this paper

Online since:

June 2014

Authors:

Long Yan*, Yu Fei Wang, Jian Li Li

Keywords:

COD, Mineralization, Refinery Wastewater, Vacuum Distillation

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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