On July 2, 2018, the first high salinity wastewater biochemical treatment project - 60 m³/h high salinity wastewater biochemical treatment project of SINOPEC Qingdao Refining Co., Ltd. was put into operation successfully. The salinity tolerance of microorganism used by us in this project is much higher than the market level, with strong resistance against fluctuation. The microorganism just need to be added once during operation and no more addition is required. 

After treatment by us, the high salinity wastewater (mainly including sulfate, ammonium salt, and nitrate, etc.), and target pollutants including COD, ammonia nitrogen, nitrate nitrogen and total nitrogen reached the control target. And as the entire process adopts the contact oxidation method, without sludge bulking, so no subsequent treatment is needed, which has won unanimous praise from the owner.