Study on emulsion stability for the treatment of industrial effluents containing emulsions

• Grant number: 10/20376-7
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Start date: March 01, 2011
• End date: June 30, 2015
• Field of knowledge: Engineering - Chemical Engineering - Chemical Process Industries
• Principal Investigator: Roberto Guardani
• Grantee: Cristhiane Assenhaimer Takahashi
• Host Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

The project consists of a study on emulsion stability and demulsification conditions, applied to metal working fluids, aiming at the treatment of effluents from metal working industrial processes. The plan involves lab scale experiments with emulsions containing different constituents and formulations, with the application of optical techniques like spectrophotometry and light scattering, followed by data treatment in order to fit models for estimating droplet size distribution and stability regions. Based on the results, demulsification tests will be carried out in order to establish the most adequate conditions to handle effluent emulsions. Assuming that the oil phase can be reprocessed, the aim in this step is to identify adequate processes for removing organic contaminants and dissolved ions from the aqueous phase. The project topic lies within the scope of a joint project between USP and the University of Bremen, Germany, carried out within the BRAGECRIM program (Brazilian German Collaborative Research Initiative in Manufacturing). The project entitled Emulsion Process Monitor in Metalworking Processes, coordinated by Prof. Roberto Guardani (USP) and Prof. Udo Fritsching (Univ. Bremen) is aimed at developing an optical sensor for monitoring emulsion properties and to study the stability and flow characteristics of emulsions of industrial interest. (AU)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

TAKAHASHI, Cristhiane Assenhaimer. Evaluation of emulsion destabilization by light scattering applied to metalworking fluids.. 2015. Doctoral Thesis - Universidade de São Paulo (USP). Escola Politécnica (EP/BC) São Paulo.