Abstract
The effective treatment of polymer-flooding sewage has attracted great concerns during the oilfield wastewater treatment. The low pollutant removal efficiency due to the high viscosity of polymer is addressed in the actual production process. In this work, a novel integrated process of “air flotation-(anaerobic-anoxic-aerobic)-ozone catalytic oxidation-dual media filtration-multimedia filtration” is presented. The viscosity of the treated effluent was reduced from 1.424 mPa·s to 0.942 mPa·s; Suspended solids and oil removal were 99.5%, biochemical oxygen demand, total nitrogen, total phosphate, and other biochemical indexes in polymer-flooding sewage were also removed efficiently. At the same time, more than 70% of the polymer retained in the effluent. The goal of improving the treating efficiency of polymer-flooding sewage while retaining polymer was achieved. This work provides an efficient approach for polymer-flooding sewage reuse.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Chemical Engineering and Processing - Process Intensification
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
