Method for treating high-concentration degradation-resistant organic wastewater through multiphase high-pressure microwave catalytic oxidation

• Main Authors: LI LIFENG, KAN ZIJIAN, CHE LIANFA, HUO YING, ZHANG QIAN, FU LIANCHAO
• Format: Patent
• Language: Chinese; English
• Published: 28.06.2024
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a method for treating high-concentration degradation-resistant organic wastewater through multiphase high-pressure microwave catalytic oxidation. The method comprises the following steps: pumping to-be-treated organic wastewater and a gas oxidizing agent into a reactor filled with a high-activity catalyst and a microwave generator, sealing and pressurizing, carrying out three-phase coupling on the gas oxidizing agent, the organic wastewater and the solid catalyst under the induction catalysis of multiple physical fields, and finally carrying out efficient in-situ catalytic degradation on organic matters in the wastewater. Compared with the existing wet catalytic oxidation technology, the method has the advantages that microwave radiation is used as a heating source and an auxiliary catalyst, so that the high-temperature and high-pressure conditions required by reaction are reduced, the reaction efficiency is improved, the treatment time is shortened, the degradation rate is improved, t