NOVELTY - An enhanced oil recovery treatment method is performed by preparing compound bacteria and nutrient solution, mixing at weight ratio compound bacteria:nutrient solution of 1:(2-18), adding in wastewater pool, performing continuous enhanced oil recovery method, standing for 12-16 hours, feeding in aerobic tank, standing for 12-48 hours, controlling pH to 5-9 and temperature at 20-40 degrees C, adding water in aerobic tank through water inlet at volume ratio sewage mixture:water of 15-25:1, adding 500 ppm chlorinated polymer flocculant, and precipitating for 4-8 hours.    USE - An enhanced oil recovery treatment method for wastewater (claimed).    ADVANTAGE - The enhanced oil recovery method is highly efficient, environment-friendly, low cost, nontoxic, and easy to perform.    DETAILED DESCRIPTION - An enhanced oil recovery treatment method is performed by preparing compound bacteria which involves mixing white Bacillus strain NKCCMR NK. DG-1, Bacillus pumilus strain NKCCMR NK2. 10-1, Bacillus subtilis strain AS1.107, edible Pseudomonas strain AS1.1641, and salt-resistant Brevibacterium strain NKCCMR NK2.B-3 at weight ratio Bacillus:B. pumilus:B. subtilis:edible Pseudomonas:salt-resistant Brevibacterium of (1-3):(1-5):(1-5):(2-7):(2-7), preparing nutrient solution by mixing 0.1-2% molasses, 0.3-0.5% ammonium chloride (NH4Cl), 0.1-0.2% potassium nitrate (KNO3), 0.1-0.2% sodium chloride (NaCl), 0.05-0.2% monopotassium phosphate (K2HPO4), 0.01-0.15% magnesium sulfate heptahydrate (MgSO4.7H2O), 0.01-0.1% potassium chloride (KCl) and water, mixing compound bacteria and nutrient solution at weight ratio compound bacteria:nutrient solution of 1:(2-18), adding in wastewater pool, performing continuous enhanced oil recovery method, standing for 12-16 hours, feeding in aerobic tank, standing for 12-48 hours, controlling pH to 5-9 and temperature at 20-40 degrees C, adding water in aerobic tank through water inlet at volume ratio mixture:water of 15-25:1, adding 500 ppm chlorinated polymer flocculant, and precipitating for 4-8 hours.    DESCRIPTION OF DRAWING(S) - The drawing shows a process flow diagram of the enhanced oil recovery treatment method. (Drawing includes non-English language text).