METHOD FOR TREATING WASTE WATER CONTAINING SURFACTANT

摘要

A method for effectively preventing the deterioration of a membrane flux in a method of decomposing a surfactant contained in wastewater by performing an ozone oxidation process prior to a membrane process is provided. In a method of sequentially treating wastewater containing a surfactant by an oxidation process and a membrane process, a method for treating wastewater containing a surfactant is characterized in that: the oxidation process is a process of contacting the wastewater with ozone under alkaline conditions to oxidize a surfactant contained in the wastewater; and the membrane process is a process of filtering alkaline oxidized water discharged from the oxidation process using a membrane. The membrane process is a reverse membrane process. The oxidation process is an accelerated oxidation process using ozone and hydrogen peroxide. The method further comprises an oxidizer removal process of removing an oxidizer remained in water that has passed through the oxidation process, and water that has passed through the oxidizer removal process is introduced into the membrane process.