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Reverse Osmosis Coupled with Ozonation for Clean Water Recovery from an Industrial Effluent: Technical and Economic Analyses.
Membranes (Basel)
January 2025
Departamento de Ciencias del Agua y Medio Ambiente, Instituto Tecnológico de Sonora, 5 de Febrero 818 sur Col. Centro, Cd. Obregón C.P. 85000, Sonora, Mexico.
Technical and economic criteria were used to evaluate the feasibility of the treatment of an industrial effluent (10 m/h) for water recovery and reuse. The treatment evaluation included the following: (1) effluent characteristic determination; (2) selection and evaluation of the effluent treatment at lab scale, establishing operating conditions and process efficiency; (3) scaling up the treatment process to the industrial level; (4) treatment plant design and commercial availability analysis of the required equipment; and (5) the costs of the inversion and operation of the plant treatment, cost/m for water recovery, and time of investment recovery. The physicochemical characteristics of the effluent exposed the polluted wastewater with sodium chloride salts and colourants, predominating a mixture of tartrazine, Red 40, and brilliant blue from the synthesis of food additives.
View Article and Find Full Text PDFOzonized water as a promising strategy to remove biofilm formed by spp. on polyethylene and polystyrene surfaces.
Biofouling
January 2025
Department of Food Technology, Universidade Federal de Viçosa, Viçosa, Brazil.
The dairy industry faces challenges in controlling spoilage microorganisms, particularly , known to form resilient biofilms. Conventional disinfection methods have limitations, prompting the exploration of eco-friendly alternatives like ozone. This study focused on biofilms on polystyrene and polyethylene surfaces, evaluating ozone efficacy when incorporated into different water sources and applied under static and dynamic conditions.
View Article and Find Full Text PDFCatalytic ozonation of dimethyl phthalate by Ti-MCM-41 in water.
RSC Adv
January 2025
Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Ocean University Lianyungang 222005 China
A Ti-MCM-41 mesoporous molecular sieve catalyst was prepared by a hydrothermal method. Nitrogen adsorption desorption, XRD, TEM and SEM characterization results showed that the catalyst had a large specific surface area, a regular hexagonal pore structure, and titanium doping was uniformly dispersed in MCM-41 molecular sieves. The amount of titanium doping, reaction temperature, and the initial solution pH had important effects on the catalytic ozonation of dimethyl phthalate (DMP) by Ti-MCM-41.
View Article and Find Full Text PDFSynthesis of a novel starch-based emulsion gel with remarkable low-temperature stability via esterification, ozone-oxidation and ion induction.
Carbohydr Polym
March 2025
Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan Polytechnic University, Wuhan 430023, PR China; School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China. Electronic address:
A novel starch-based emulsion gel was designed via octenyl succinic anhydride (OSA) esterification, ozone oxidation, and ion (Ca) induction. The gel properties and low-temperature stability of emulsion gel with different oxidation time (0, 5, 10, 15, 25 min; OW-0, 5, 10, 15, 25) were systematically investigated. FTIR revealed that the oxidation of CC and -OH groups in OW-0 by ozone oxidation led to their cleavage into carbonyl groups, and than transformed to carboxyl groups.
View Article and Find Full Text PDFElucidating molecular characteristics of organic compounds during ozone micro-bubbles treatment based on GC × GC-QTOF-MS and non-targeted analysis.
J Environ Manage
January 2025
College of Environment, Hohai University, Nanjing, 210098, PR China; Suzhou Research Institute, Hohai University, Suzhou, 215100, PR China; Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Hohai University, Nanjing, 210098, PR China. Electronic address:
The ozone micro-bubbles (OCBs) technology is increasingly gaining traction as a promising alternative method for organic compounds removal in wastewater. Nevertheless, there is a scarcity of literature addressing the molecular-level transformation of organic compounds during OCBs treatment. In this work, the secondary effluent from a wastewater treatment plant was treated with ozone milli-bubbles (OLBs) and OCBs, and the fate of organic compounds at the molecular level was investigated using comprehensive two-dimensional gas chromatography quadrupole time-of-flight mass spectrometry (GC × GC-QTOF-MS).
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