Heterogeneous Fenton catalytic oxidation reactor and application thereof

The invention provides a heterogeneous Fenton catalytic oxidation reactor, which comprises a hollow cylinder body, wherein a raw water inlet area and a mixing reaction area are sequentially arranged in the cylinder body along the water inlet direction; a filter plate is arranged between the raw water inlet area and the mixing reaction area; a reflux water inlet area is arranged below the raw waterinlet area; a perforated plate is arranged between the reflux water inlet area and the raw water inlet area; the reflux water inlet area is communicated with the raw water inlet area through the perforated plate; and the reflux water inlet area is communicated with the mixing reaction area through a pipeline. The invention further provides a using method of the heterogeneous Fenton catalytic oxidation reactor. The heterogeneous Fenton catalytic oxidation reactor and the application thereof provided by the invention have the advantages of small occupied area, high mass transfer efficiency, high utilization efficiency