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papermaking midcourse water is the most important papermaking wastewater, whose concentration of pollutants is relatively high with large amount of water and produces big hazards to the environment. The article introduces the general situations of technical transformations, and compares the removal effects and treatment compliance situations of the major pollutants in the papermaking midcourse water by the wastewater treatment project before and after the technical transformations, and on this basis, it analyzes the process and technology features of the technical transformation project. The project practices show that the operations of the papermaking wastewater treatment project system after the technical transformations are reliable and able to tolerate the impact loads, and the treatment effects are significantly improved. The technical transformation method has reference values to the treatment of the papermaking midcourse water.

Technical transformation researches and practices of papermaking wastewater treatment project