UFJF - Universidade Federal de Juiz de Fora

Study of cyanobacteria-implications on water potability: application of physical principles – evanescent and interferometry waves on the quantification of Cylindrospermopsis raciborskii populations

Data: 10 de November de 2016

   The project here presented is one of the components of an integrated study focused on the implications of the presence of cyanobacterial blooms in waters used for human supply. Flowering of cyanobacteria is a reality to be faced with regard when it comes to the management of water resources.

   The great relevance of the study is to concentrate efforts on this problem, which is one of the most complex both in terms of conceptual evaluation and the establishment of mitigating measures for water quality. The central idea of ​​this project is to develop methodology and equipment for the counting of micro particles and analysis of the surrounding environment from the theory of evanescent waves and interferometry.

   Populations of Cylindrospermopsis Raciborskii will be used as an application model for natural samples. The equipment will function as an instrument for the study and monitoring of cyanobacteria, since the intensity recorded on the oscilloscope depends on factors such as refractive index of the solution, cyanobacteria refractive index, prism refractive index, cyanobacteria size and concentration, temperature and distance between the cyanobacteria and the surface of the prism.

   The knowledge of these factors allows controlling and/or monitoring the response of the environment to the presence of cyanobacteria. The measurement of the refractive index of the solution will be done by the interferometric technique.

 

Members:

Fabio Roland | Coordinator