• 专利标题:   Ozone catalytic membrane reactor assembly used for water treatment engineering, e.g. advanced treatment technology for drinking water by inducing ozone decomposition using copper manganate/reduced graphene oxide catalytic film.
  • 专利号:   CN111573818-A
  • 发明人:   QI F, LI A, WEI G, LIU Y, SONG Z
  • 专利权人:   UNIV BEIJING FORESTRY, GUANGDONG ENVIRONMENT TECH INST
  • 国际专利分类:   B01J023/889, B01J035/06, B01J035/10, C02F001/72, C02F001/78, C02F101/30, C02F009/14
  • 专利详细信息:   CN111573818-A 25 Aug 2020 C02F-001/72 202078 Pages: 8 Chinese
  • 申请详细信息:   CN111573818-A CN10460407 27 May 2020
  • 优先权号:   CN10460407

▎ 摘  要

NOVELTY - An ozone catalytic membrane reactor assembly and its application method in water treatment engineering. The water treatment engineering is done by inducing ozone decomposition using copper manganate/reduced graphene oxide catalytic film, removing refractory organic pollutants in water, simultaneously controlling generation of toxic by-product bromate, self-cleaning surface, and assembling. The copper manganate/reduced graphene oxide catalytic film is prepared by mixing copper manganate and graphene oxide, grinding, transferring to quartz crucible, calcining to obtain composite nanoparticles, dispersing in deionized water, and sonicating to obtain a suspension; and sealing one side of ceramic membrane, blowing nitrogen into suspension, oven vacuum drying film, and calcining. USE - The ozone catalytic membrane reactor assembly is used for water treatment engineering, preferably advanced treatment technology for drinking water and reclaimed water treatment technology (all claimed). ADVANTAGE - The assembly generates hydroxyl radicals and superoxide free-radicals with higher oxidation capacity, efficiently degrades organic pollutants, synchronously improve the online self-cleaning effect while degrading high-risk trace organic matter, effectively inhibit the formation of bromate which is a toxic by-product of ozone, and has refractory organics removal rate of up to more than 90% in drinking water, urban sewage and industrial wastewater. DETAILED DESCRIPTION - An ozone catalytic membrane reactor assembly and its application method in water treatment engineering. The water treatment engineering is done by inducing ozone decomposition using copper manganate/reduced graphene oxide catalytic film to produce hydroxyl radicals and superoxide radicals, removing refractory organic pollutants in water, simultaneously controlling generation of toxic by-product bromate, self-cleaning surface to control membrane pollution, and assembling. The copper manganate/reduced graphene oxide catalytic film is prepared by mixing copper manganate and graphene oxide at mass ratio of 0.5-10:1, grinding, transferring to quartz crucible, calcining to 300-400 degrees C at rate of 3-7 degrees C/minute for 0.8-1.2 hours to obtain composite nanoparticles, dispersing 0.1-0.3 g composite nanoparticles in 0.9-1.1 L deionized water, and sonicating for 10 minutes to obtain a suspension; and sealing one side of ceramic membrane, blowing nitrogen into suspension until container is completely compressed to pressure of 0.1 MPa, oven vacuum drying film at 45 degrees C for 12-15 hours, and calcining at 300-500 degrees C and at rate of 7-10 degrees C/minute.