Ceramic membranes have been around for quite some time, but the technology has often been cost prohibitive for many applications and markets. In the case of sludge thickening, the higher cost per square foot of membrane for ceramic is often offset by the potential gains in achieving sustainable operation at higher percent solids. Ceramic membranes offer both performance and economic advantages for sludge thickening applications despite higher capital costs. The enhanced membrane properties allow a ceramic membrane to operate at flux rates 4X higher than polymeric membranes. Ceramic membranes will also experience significantly longer lifetimes due to mechanical durability advantages. Sludge thickening is a very abusive environment due to coarse and abrasive material as well as the intense energy imparted on the membrane from the air scour at elevated MLSS concentration.
This presentation is available to AMTA Members only.
- Bryen Woo, PE
- Ovivo USA, LLC
- AMTA/NWMOA Technology Transfer Workshop, Spokane, WA
- AMTA/NWMOA Technology Transfer Workshop
- Silicon Carbide, Ceramic Membranes, Sludge Thickening