Abstract
During the tangential micro filtration and ultrafiltration processes a membranes fouling in surface and inside the pores often appears. This fouling has the effect of a permeation flow decrease in terms of the filtration time. In order to keep this flow constant (to improve the rentability) the transfer pressure gradient is frequently increased and leads to solid matter surface deposit on the porous wall. The fouling can then be irreversible and requires the stopping of the facilities. The fouling and more particularly the fouling by solid deposit seems to be an abatement to the micro filtration technology development. It is then necessary to search the carrying away conditions of these solid deposits and thus to control the fouling process. An ultrafiltration or micro filtration appliance has been realized and allows to calculate experimentally the erosion critical stress on a porous wall : this is the minimum stress to apply in order to lead in the principal flow a solid particles deposit and the parietal stress to be imposed to lead by an erosion process a solid particles deposit. (O.L.)
Citation Formats
Aubert, Marie-Cecile.
Erosion critical stress of a matter surface deposit on a micro filtration membrane; Contrainte critique d'erosion d'un depot superficiel de matiere sur membrane de microfiltration.
France: N. p.,
1995.
Web.
Aubert, Marie-Cecile.
Erosion critical stress of a matter surface deposit on a micro filtration membrane; Contrainte critique d'erosion d'un depot superficiel de matiere sur membrane de microfiltration.
France.
Aubert, Marie-Cecile.
1995.
"Erosion critical stress of a matter surface deposit on a micro filtration membrane; Contrainte critique d'erosion d'un depot superficiel de matiere sur membrane de microfiltration."
France.
@misc{etde_246773,
title = {Erosion critical stress of a matter surface deposit on a micro filtration membrane; Contrainte critique d'erosion d'un depot superficiel de matiere sur membrane de microfiltration}
author = {Aubert, Marie-Cecile}
abstractNote = {During the tangential micro filtration and ultrafiltration processes a membranes fouling in surface and inside the pores often appears. This fouling has the effect of a permeation flow decrease in terms of the filtration time. In order to keep this flow constant (to improve the rentability) the transfer pressure gradient is frequently increased and leads to solid matter surface deposit on the porous wall. The fouling can then be irreversible and requires the stopping of the facilities. The fouling and more particularly the fouling by solid deposit seems to be an abatement to the micro filtration technology development. It is then necessary to search the carrying away conditions of these solid deposits and thus to control the fouling process. An ultrafiltration or micro filtration appliance has been realized and allows to calculate experimentally the erosion critical stress on a porous wall : this is the minimum stress to apply in order to lead in the principal flow a solid particles deposit and the parietal stress to be imposed to lead by an erosion process a solid particles deposit. (O.L.)}
place = {France}
year = {1995}
month = {May}
}
title = {Erosion critical stress of a matter surface deposit on a micro filtration membrane; Contrainte critique d'erosion d'un depot superficiel de matiere sur membrane de microfiltration}
author = {Aubert, Marie-Cecile}
abstractNote = {During the tangential micro filtration and ultrafiltration processes a membranes fouling in surface and inside the pores often appears. This fouling has the effect of a permeation flow decrease in terms of the filtration time. In order to keep this flow constant (to improve the rentability) the transfer pressure gradient is frequently increased and leads to solid matter surface deposit on the porous wall. The fouling can then be irreversible and requires the stopping of the facilities. The fouling and more particularly the fouling by solid deposit seems to be an abatement to the micro filtration technology development. It is then necessary to search the carrying away conditions of these solid deposits and thus to control the fouling process. An ultrafiltration or micro filtration appliance has been realized and allows to calculate experimentally the erosion critical stress on a porous wall : this is the minimum stress to apply in order to lead in the principal flow a solid particles deposit and the parietal stress to be imposed to lead by an erosion process a solid particles deposit. (O.L.)}
place = {France}
year = {1995}
month = {May}
}