Method for treating reverse osmosis concentrated water through heterogeneous Fenton-like reaction catalytic oxidization

The invention discloses a method for treating reverse osmosis (RO) concentrated water through heterogeneous Fenton-like reaction catalytic oxidization and belongs to the technical field of environment protection. In the method, a supported transition metal oxide is employed as a Fenton-like reaction catalyst, wherein an active component of the catalyst is a mixture of transition metals comprising, by mass, 60-80% of Fe, 10-15% of Cu, 3-13% of Co and 7-12% of Mn. In the presence of the Fenton-like reaction catalyst and H2O2, a reaction is carried out with the RO concentrated water, wherein the organic pollutants in the RO concentrated water is oxidized and degraded through a generated hydroxyl free radical in a non-selective manner. The method is simple in processes, is convenient to carry out and is simple in process control. The catalyst can be recycled, so that the method is economical and available, can reduce COD value and chroma in the RO concentrated water high-effectively and quickly within a wide pH v