Friday, December 11, 2015

Phenols Removal From Refinery Wastewater By Advanced Oxidation Process (AOPs): From Laboratory Scale To Industrial One

CATEGORY: WASTEWATER TREATMENT
Phenols Removal From Refinery Wastewater By Advanced Oxidation Process (AOPs): From Laboratory Scale To Industrial One


Type
Conference Paper
Author
I. Saracino
Author
W. Tina
URL
Publisher
Society of Petroleum Engineers
Date
2015
Conference Name
Abu Dhabi International Petroleum Exhibition and Conference, 9-12 November, 2015
Abstract
Adavanced Oxidation Processes (AOPs) represent a group of promising technologies for the degradation of Refractory Chemical Pollutants as, for example, Chlorophenols (CPs) compounds of a special interest because of their high toxicity and low biodegradability. Authors describe the application of AOPs treatments on an actual case study consisting in the design of an Industrial-scale refinery effluent treatment & recovery plant.
The water portion generated which was not recycled, had to be discharged into the ocean with strict limits. For this purpose, two different AOPs treatments were studied at lab scale: the combination of hydrogen peroxide (H2O2) with a liquid catalyst and the adoption of H2O2 in combination with UV light.
Results revealed that the system resulting from the combination of H2O2 with a liquid catalyst into a specific H2O2/catalyst range allowed a higher phenol degradation kinetics than the treatment based on hydrogen peroxides coupled with UV light. Once the AOP treatment was optimized on a laboratory scale, the design for its adoption on an industrial scale was conducted and the system was integrated as a tertiary treatment in a wastewater system including Coalescent Plate Interceptors (CPI) and Flotation as Deoiling treatment and a Membrane Bioreactor (MBR) Oxidation system as a biological treatment.

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