Patent ID: 6127141
Filing Date: 2000-10-03
Classification: B01D,C12M,Y10S

Abstract:
A mass transfer system comprising:(a) a first tangential flow membrane device comprising:i) a first housing enclosing an interior volume;ii) one or more filter means separating the interior volume of the first housing into two or more chambers, including a first set of chambers comprising an intra-filter volume and a second set of chambers comprising an extra-filter volume;(b) a second tangential flow membrane device in fluid communication with one or more of the chambers of the first tangential flow membrane device, said second tangential flow membrane device comprising:i) a second housing enclosing an interior volume;ii) one or more filter means separating the interior volume of the second housing into two or more chambers, including a first set of chambers comprising an intra-filter volume and a second set of chambers comprising an extra-filter volume;(c) one or more substance addition means in fluid communication with the extra-filter volume or intra-filter volume of the first and/or second tangential flow membrane device; and(d) one or more fluid exit means in fluid communication with the extra-filter volume or intra-filter volume of the first and/or second tangential flow device.