Advanced treatment of oil recovery wastewater from polymer flooding by UV/H2O2/O3 and fine filtration.
In order to purify oil recovery wastewater from polymer flooding (ORWPF) in tertiary oil recovery in oil fields, advanced treatment of UV/H2O2/O3 and fine filtration were investigated. The experimental results showed that polyacrylamide and oil remaining in ORWPF after the conventional treatment process could be effectively removed by UV/H2O2/O3 process. Fine filtration gave a high performance in eliminating suspended solids. The treated ORWPF can meet the quality requirement of the wastewater-bearing polymer injection in oilfield and be safely re-injected into oil reservoirs for oil recovery.
Guang-Meng
Ren
R
School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China. rgmhit@126.com
De-Zhi
Sun
S
Chunk
Jong Shik
JS
D005374:Filtration / Q000379:methods*; D006861:Hydrogen Peroxide / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D009821:Oils / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D014466:Ultraviolet Rays; D014874:Water Pollutants, Chemical / Q000737:chemistry*
D009821:Oils; D011108:Polymers; D014874:Water Pollutants, Chemical; D006861:Hydrogen Peroxide