Catalyst for reducing COD of sewage, and preparation method and application thereof

• Main Authors: YU PUFA, YAO HAIZHOU, WU BAOGANG, ZHAO HONGBIN, YU HUA
• Format: Patent
• Language: Chinese; English
• Published: 26.10.2021
• 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 relates to a catalyst for reducing COD of sewage, and a preparation method and application thereof, and belongs to the technical field of sewage treatment. The preparation method of the catalyst for reducing COD of sewage comprises the following steps: weighing copper nitrate, manganese nitrate and palladium nitrate, putting the weighed materials into a beaker, adding 100 ml of deionized water, and heating and stirring the materials to obtain an impregnation liquid; putting a catalyst carrier into the obtained impregnation liquid, heating and pressurizing for reaction, and drying to obtain an initial catalyst; and calcining the obtained initial catalyst to obtain the catalyst for reducing the COD of sewage. The invention also provides the catalyst for reducing COD of sewage prepared by adopting the preparation method, and the application of the catalyst. The catalyst for reducing the COD in the sewage is loaded with copper, manganese and palladium, has a wide selective adsorption range on organi