With the rapid development of my country’s oil refining, chemical, and oil extraction industries, the inefficiency and high energy consumption of difficult-to-degrade high-salt wastewater treatment technology has not been well broken through, which has brought serious problems to the development of environmental protection technology and the ecological environment. Negative impact. Therefore, high-efficiency and low-energy-consumption treatment strategies and technologies for refractory high-salt wastewater have always been a technical bottleneck in the field of environmental protection.

 

The national industrial support project undertaken by Broad Environmental Protection-Intelligent low-energy membrane biotechnology. Based on the research on the application technology of environmental microbial specific flora to treat oily wastewater, the impact has been obtained through on-site pilot studies and industrial application tests. The key engineering parameters for the treatment effect of petroleum and petrochemical wastewater, low energy consumption membrane products are used in the industrialization process, which realizes innovative technologies such as tubular membrane backwashing, which greatly reduces the cross-flow velocity and operating energy consumption of tubular membranes, thereby Significantly save maintenance costs and operating expenses, and form a proprietary process with independent intellectual property rights.

 

The low-energy tubular membrane bioreactor is coupled with the three major technologies of special microorganisms, low-energy tubular membranes and intelligent control. It has short process, impact resistance, and low energy consumption (energy consumption per ton of water is about 0.8kw.h, which is lower than the conventional error. 1/3 of the flow tube membrane process), high salt resistance, intelligent control and other characteristics. This technology has been applied in many projects such as PetroChina and Sinopec. The average treated water volume reaches 4000m3/d. After treatment, the quality of the effluent is stable and reaches the A1 water injection standard.