Development of a novel photocatalytic nano-composite membrane to - PowerPoint PPT Presentation

Development of a novel photocatalytic nano-composite membrane to create new water resources from wastewater Daisuke Sano, Ph.D. Associate Professor Division of Environmental Engineering Faculty of Engineering Hokkaido University Mar. 5th, 2013

Strategic Japanese-Spanish Cooperative Program 1 Conventional Autonomic and decentralized water water utilization metabolic system Drinking water treatment plant Drinking water treatment plant with cutting-edge technologies Reuse Farm Sewer Wild and farm animals Small facility for membrane bioreactor Farm Drinking water pipe Long sewer Reuse duct Sewer duct Reuse Recharge Reuse Fountain Intake Wastewater water treatment plant Wastewater effluent Mar. 5th, 2013 Daisuke Sano

Strategic Japanese-Spanish Cooperative Program 2 Membrane Bioreactor (MBR) Advantages MF: microfiltration MBR flow Treated ● Small footprint water Waste ● Simple operation MF water Air ● Simple maintenance Denitrification Nitrification Conventional flow NaClO Sedimentation Waste Treated Denitrification Nitrification water water Air Disinfection Mar. 5th, 2013 Daisuke Sano

Strategic Japanese-Spanish Cooperative Program 3 What we have to pay attentions to are… MF: microfiltration Treated NF/RO water Fouling and brine Waste MF water generation in NF/RO Air Denitrification Nitrification - Organic matter in MBR effluent - Viral pathogens and micropollutants Mar. 5th, 2013 Daisuke Sano

Strategic Japanese-Spanish Cooperative Program 4 What we would like to achieve… UF: ultrafiltration NF/RO Waste Water utilization MF UF water Air Photocatalysis membrane UV-visible light source ROS Hollow fiber UF membrane Photocatalysis membrane Mar. 5th, 2013 Daisuke Sano

Strategic Japanese-Spanish Cooperative Program 5 What we would like to achieve… Inactivatation of Degradation of microorganisms micropollutants UV-visible light source ROS Prevention of biofouling Photocatalysis membrane Mar. 5th, 2013 Daisuke Sano

Strategic Japanese-Spanish Cooperative Program 6 SPAIN Main members JAPAN Team Leader Prof. Marcos Fernandez-Garcia ICP-CSIC Dr. Katsuki KIMURA Dr. Daisuke SANO Hokkaido University Hokkaido University Water Treatment Engineering Water Treatment Engineering Membrane Technology Public Health Microbiology Dr. Maria Luisa Cerrada (ICP-CSIC) Team Leader Prof. Satoshi OKABE Hokkaido University Water Treatment Engineering Environmental Microbiology Dr. Hisashi SATOH Dr. Hiroshi YAMAMURA Hokkaido University Chuo University Dr. Marta Fernandez-Garcia Water Treatment Engineering Water Treatment Engineering (ICP-CSIC) Water Chemistry Membrane Technology Mar. 5th, 2013 Daisuke Sano

Strategic Japanese-Spanish Cooperative Program 7 March 5th, 2013 Research schedule Topics 2012 2013 2014 Equipment preparation and preliminary analyses Evaluation of depollution and disinfection capabilities Biofilm development analysis Synthesis of photoactive materials Synthesis of photocatalytic nanocomposite membranes Characterization of photocatalytic nanocomposite membranes Analysis of light-matter interaction in nanocomposite membranes Mar. 5th, 2013 Daisuke Sano

Strategic Japanese-Spanish Cooperative Program 8 Modification of titania (Spanish team) + 3-(trimethoxysilyl ) propyl methacrylate + TITANIA Free radical polymerization F F AIBN F F F 2,3,4,5,6-PENTAFLUORSTYRENE, 5PFS TITANIA-POLYMER Mar. 5th, 2013 Daisuke Sano

Strategic Japanese-Spanish Cooperative Program 9 Synthesis of photoactive materials (Spanish team) Ethylene vinylalcohol copolymer Polypropylene (EVOH) films (PP) films PP A1-EVOH EVOH S-PP A1-EVOH A1-PP A2-EVOH A2-PP B2-EVOH B1-PP S-EVOH B2-PP C1600-EVOH C1600-PP C1700-EVOH C1700-PP Mar. 5th, 2013 Daisuke Sano

Strategic Japanese-Spanish Cooperative Program 10 ROS production potential of films (Japanese team) ROS detection reagent in phosphate buffer (pH: 7.2) UV illuminator ROS 5 cm Quartz tube Film Mar. 5th, 2013 Daisuke Sano

Strategic Japanese-Spanish Cooperative Program 11 Total ROS production (Japanese team) Maximum 75%tile Median 25%tile Minimum Mar. 5th, 2013 Daisuke Sano

Strategic Japanese-Spanish Cooperative Program 12 Preparation of membranes (Spanish team) PVDF / Sulfolan ɸ = 150 – 200 µm Pore size = 200 – 700 nm Mar. 5th, 2013 Daisuke Sano

Strategic Japanese-Spanish Cooperative Program 13 Preparation of membranes with titania (Spanish team) PVDF-TiO 2 / Sulfolan ɸ = 350 – 400 µm Pore size = 150 – 700 nm Mar. 5th, 2013 Daisuke Sano

Strategic Japanese-Spanish Cooperative Program 14 A continuous-flow cell (Japanese team) Pump A Cross flow-type flow cell Membrane Pressure Quartz Pump B sensor UV illuminator glass PE Medium Mar. 5th, 2013 Daisuke Sano

Strategic Japanese-Spanish Cooperative Program 15 Membrane production SPAIN + titania provision Main members JAPAN Depollution, disinfection and biofilm prevention capabilities + Team Leader Membrane production Prof. Marcos Fernandez-Garcia ICP-CSIC Dr. Katsuki KIMURA Dr. Daisuke SANO Hokkaido University Hokkaido University Water Treatment Engineering Water Treatment Engineering Membrane Technology Public Health Microbiology Dr. Maria Luisa Cerrada (ICP-CSIC) Team Leader Prof. Satoshi OKABE Dr. Hisashi SATOH Dr. Hiroshi YAMAMURA Hokkaido University Hokkaido University Chuo University Water Treatment Engineering Water Treatment Engineering Water Treatment Engineering Dr. Marta Fernandez-Garcia Environmental Microbiology Water Chemistry Membrane Technology (ICP-CSIC) Mar. 5th, 2013 Daisuke Sano

16 Strategic Japanese-Spanish Cooperative Program March 5th, 2013 Research schedule Sep. 2012: Oct. 2012: Topics 2012 2013 2014 Spain team Japan team visited Sapporo visited Madrid Equipment preparation and preliminary analyses Evaluation of depollution and disinfection capabilities Biofilm development analysis Synthesis of photocatalytic nanocomposite membranes Synthesis of photoactive materials Synthesis of photocatalytic nanocomposite membranes Characterization of photocatalytic nanocomposite membranes Analysis of light-matter interaction in nanocomposite membranes Mar. 5th, 2013 Daisuke Sano

Strategic Japanese-Spanish Cooperative Program 17 Summary and future perspectives - Photocatalysis capability of prototype films was tested. - Prototype membranes are being produced by both sides of Japan and Spain teams. - Flow cell type reactor for analyzing biofilm prevention, chemical decomposition and virucidal capabilities of photocatalytic nano-composite membrane was constructed. - Biofilm formation, chemical decomposition and virucidal capabilities of photocatalytic nano-composite membrane will be tested using real wastewater. Mar. 5th, 2013 Daisuke Sano