25 research outputs found
First characterization of endophytic Corynespora cassiicola isolates with variant cassiicolin genes recovered from rubber trees in Brazil
Tangential streaming potential/current measurements for the characterization of composite membranes
International audienc
Development of a new method for the characterisation of electrokinetic properties of fouling deposits during the filtration - International Congress on Membranes and Membrane Processes, Amsterdam
Decontamination of polluted discharge waters from surface treatment industries by pressure-driven membranes: Removal performances and environmental impact
International audienc
Understanding of Ion Transport in a NaâMordenite Membrane: Use of Numerical Modeling To Estimate SurfaceâSolute Interactions in the Pore
International audienc
Understanding of Ion Transport in a NaâMordenite Membrane: Use of Numerical Modeling To Estimate SurfaceâSolute Interactions in the Pore
Permeability measuremens of brazilian Eucalyptus
The permeability of Brazilian Eucalyptus grandis and Eucalyptus citriodora wood was measured in a custom build gas analysis chamber in order to determine which species could be successfully treated with preservatives. Liquid permeability was tested using an emulsion of Neen oil and a control of distillated water. Air was used to test the gas phase permeability. For both Eucalyptus grandis and Eucalyptus citriodora, the longitudinal permeability of gas was shown to be about twice as great as the liquid phase permeability. No radial permeability was observed for either wood. The permeability of air and water through the sapwood of Eucalyptus grandis was greater than that through the sapwood of Eucalyptus citriodora. The permeability of neen oil preservative through the sapwood of Eucalyptus grandis was also greater than through the sapwood of E. Citradora, but the difference was not statistically significant. Scanning Electron Microscopy images showed that the distribution and obstruction in the vessels could be correlated with observed permeability properties. Irrespective of the causes of differences in permeability between the species, the fluid phase flux through the sapwood of both species was significant, indicating that both Eucalyptus grandis and Eucalyptus citriodora could be successfully treated with wood preservative