Cavitating jet apparatus to achieve water disinfection

• Grant number: 09/54278-4
• Support Opportunities: Regular Research Grants
• Start date: March 01, 2010
• End date: February 28, 2011
• Field of knowledge: Engineering - Civil Engineering - Hydraulic Engineering
• Principal Investigator: José Gilberto Dalfré Filho
• Grantee: José Gilberto Dalfré Filho
• Host Institution: Faculdade de Engenharia Civil, Arquitetura e Urbanismo (FEC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

The quality of drinking water is an issue of major importance, because it has been deteriorating over the years due to the industry pollution, the use in agriculture and the increase of domestic sewage release generated by the population increase. A major concern is water pollution by sewage release. This leads to the introduction of pathogenic microorganisms that can cause various diseases, some of which can be fatal. The quality of water for human consumption can be improved by controlling pollution and improving the techniques for disinfection, which consists of destroying pathogens present in water. This is therefore an extremely important step in terms of public health. The use of the phenomenon of cavitation as an alternative for disinfection of water has attracted attention. This is due to the fact that it eliminates largely, or entirely, the use of chemical reagents commonly used for water disinfection. The objective of this work is to adapt the cavitating jet apparatus to improve its efficiency for water disinfection. (AU)