Method for degrading halogenated organic pollutants in water body through synchronous coupling of reduction and oxidation

• Main Authors: XU MIAOLING, LI WULIN, YANG BO, JI XIANHUA, YU GANG
• Format: Patent
• Language: Chinese; English
• Published: 21.07.2023
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a method for degrading halogenated organic pollutants in a water body through synchronous coupling of reduction and oxidation. The method comprises the following steps: providing the water body containing the halogenated organic pollutants; the method comprises the following steps: adding dithionite and persulfate into a water body, or adding pyrosulfite and persulfate into the water body to obtain a mixed solution; ultraviolet light is utilized to irradiate the mixed solution, and reduction and oxidation reactions are performed at the same time, so that halogenated organic pollutants in the water body are degraded. According to the method, the two salts in the mixed solution are activated by using ultraviolet light, the reducing active species and the oxidizing active species are obtained at the same time, the reducing active species perform reductive dehalogenation on the halogenated organic pollutants, and the oxidizing active species perform deep oxidative degradation on the dehalo