MECHANICS vs. Membranes.

The article reports on a comparison of traditional mechanical sludge thickening technologies, including gravity belt thickeners, and an innovative use of vacuum membranes for waste activated sludge thickening which was seen at the Oxford Pollution Control Plant in London, Ontario. The comparison showed that the membrane thickener saved money by reusing existing sludge delivery piping and other mechanisms, while the traditional system would lead to an increase in costs because it would require a new building to house the feed tank and other equipment.