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Development of a cavitating jet apparatus with multiple jets to disinfect water


The consumption of quality water is essential for the human survival. Facing the current situation of scarcity and poor quality of available water, a great challenge is to develop treatment Technologies, ensuring adequate Standards of consumption and release to the water bodies. An effective alternative treatment of water is the cavitating jet apparatus. This equipment uses a high velocity jet, generating cavitation. Usually considered harmful to hydraulic systems, this Project presents a useful use for the cavitation phenomenon. The objective of this Project is to develop a cavitating jet apparatus with multiple jets for water disinfection. The parameters that define the formation of the cavitating jet, such as pressure, velocity and nozzle configurations will be studied and tested in an experimental set up in the Laboratory of Hydraulics and Fluid Mechanics of the Faculty of Civil Engineering, Architecture and Urbanism at UNICAMP. To perform the disinfection tests, it will be used the bacteria (nonpathogenic) Escherichia coli. It should be stated that this research is within a research group, in which a Mastered student, Maiara Pereira Assis, was awarded with a schoolarship supported by FAPESP (2011/16347-4). (AU)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DALFRE FILHO, JOSE GILBERTO; ASSIS, MAIARA PEREIRA; BONI GENOVEZ, ANA INES. Bacterial inactivation in artificially and naturally contaminated water using a cavitating jet apparatus. JOURNAL OF HYDRO-ENVIRONMENT RESEARCH, v. 9, n. 2, SI, p. 259-267, JUN 2015. Web of Science Citations: 9.

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Filed patent(s) as a result of this research project

EQUIPAMENTO PARA INATIVAÇÃO DE MICRORGANISMOS E DEGRADAÇÃO DE COMPOSTOS QUÍMICOS BR1020150130414 - Universidade Estadual de Campinas (UNICAMP) . José Gilberto Dalfré Filho; Ana Inés Borri Genovez; Maiara Pereira Assis - June 2015, 03

APPARATUS FOR INACTIVATING MICRO-ORGANISMS AND DEGRADING CHEMICAL COMPOUNDS PCT/BR2016/000056 - Universidade Estadual de Campinas (UNICAMP) . Jose Gilberto Dalfre Filho; Ana Inez Borri Genovez - September 2016, 03