Cleaning Membranes with Bubbles

TUESDAY, March 06, 2012
1:00pm – 3:00pm
KAISER 2020/2030

“Cleaning Membranes with Bubbles”
By Dr. Pierre Bérubé, P.Eng.
Associate Professor, Department of Civil Engineering

Membrane systems are increasingly being used in water treatment applications because of their ability to effectively retain contaminants of concern. However, some of the retained material can accumulate. Unless removed, the accumulated material (i.e. foulants) increases the resistance of the flow through the membrane, making membrane filtration prohibitively expensive. Bubble sparging is commonly used to remove and limit the accumulation of foulants. However, the effects of bubble sparging on foulant accumulation are poorly understood, and as a result, sparging systems have historically been designed using a trial-and-error approach. Research at UBC has shed light on the effects of bubble sparging on foulant accumulation. Recent research outcomes, which will be presented, have contributed to reducing the operating costs of membrane systems by as much as 50%.

Dr. Pierre Bérubé is an Associate Professor with the Department of Civil Engineering at the University of British Columbia. He has over 15 years of research and consulting experience dealing with the development and optimization of membrane technologies for water and wastewater treatment applications. Dr. Bérubé actively collaborates with researchers nationally and internationally on a number of research projects funded by the Natural Sciences and Engineering Research Council of Canada (NSERC), the Canadian Water Network, the Water Environment Research Foundation, and the European Membrane- Network.

Coffee, Cookies and Refreshments will be served