1,4-Dioxane removal from water and membrane fouling elimination using CuO-coated ceramic membrane coupled with ozone

• Published in: Environmental science and pollution research international Vol. 27; no. 18; pp. 22144 - 22154
• Main Authors: Scaratti, Gidiane, De Noni Júnior, Agenor, José, Humberto Jorge, de Fatima Peralta Muniz Moreira, Regina
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2020; Springer Nature B.V
• Subjects: Advanced Oxidation Processes: Recent Achievements and Perspectives; Antifouling coatings; Antifouling substances; Aquatic Pollution; Atmospheric Protection/Air Quality Control/Air Pollution; Catalytic oxidation; Ceramic coatings; Ceramics; Coatings; Drinking water; Earth and Environmental Science; Ecotoxicology; Environment; Environmental Chemistry; Environmental Health; Environmental science; Fouling; Membrane permeability; Membrane processes; Membrane separation; Membranes; Metal oxides; Mineralization; New technology; Ozonation; Permeability; Photocatalysis; Pollutants; Reaction kinetics; Surface water; Toxicity; Waste Water Technology; Water Management; Water Pollution Control; Water shortages; Advanced oxidation processes; Ozonation; Hybrid processes; Catalytic membrane; Ultrafiltration; Copper oxide
• ISSN: 0944-1344; 1614-7499
• DOI: 10.1007/s11356-019-07497-6

1,4-Dioxane is a synthetic cyclic ether traditionally used as a chlorinated solvent stabilizer. It is a small molecule and recalcitrant compound that is difficult to remove by conventional processes and in this regard, there is a need for the development of new technologies. In this study, an innovative CuO-coated ceramic membrane (CM) reactor system that can be used to oxidize 1,4-dioxane dissolved in surface water by catalytic ozonation was developed. The effect of the thickness of the CuO deposited on the ceramic membrane surface on the permeability, fouling resistance, 1,4-dioxane removal, and toxicity was evaluated. The efficiency of the hybrid ozonation coupled to the use of a CuO-coated CM in 1,4-dioxane removal and the antifouling properties were assessed from TOC and 1,4-dioxane removal kinetics data. Reusability in four cycles was also tested. The performance of the CuO-coated CM remained stable during the four cycles of the reusability test. The ceramic membrane coated with CuO particles coupled with ozonation is appropriate for 1,4-dioxane degradation in the aqueous phase (45% efficiency, rate constant increased by a factor of 2.98 compared with the uncoated-hybrid process) and fouling removal (60 min to recovery the permeate flux).