METHOD FOR TREATMENT OF WASTE LIQUID DISCHARGED IN MANUFACTURING TNT

PROBLEM TO BE SOLVED: To provide a method for treatment of a red water waste liquid in which the waste water discharged in a TNT manufacturing process is treated to a level enabling a biological treatment.SOLUTION: The method includes: adjusting pH of the red water waste liquid discharged with TNT manufacture; and executing oxidation treatment by adding a ferrous sulfate heptahydrate of a catalyst, a copper sulfate pentahydrate of a promoter, a hydrogen peroxide, and a defoaming agent. Then, a caustic soda is added to an oxidation treatment water, and the catalyst is separated into solid and liquid by a filter, and thereafter is diluted with a raw water or water in a wastewater treatment plant.