They say a picture's worth a thousand words. If that's true, this image of a fouled membrane bioreactor (MBR) system needs little prelude — it's simply what happens when you don't properly protect your membranes with pretreatment.
Biological Nutrient Removal (BNR) is allowing many wastewater treatment plants to achieve extremely high effluent quality. Still, for some applications even the most advanced BNR processes can’t address concerns with trace organics, pharmaceuticals, and other endocrine disrupting compounds (EDCs).
As global conditions place more stress on water resources, a great deal of attention is being paid to water reuse technologies, particularly those that facilitate the reuse of the next level of difficult-to-treat or highly variable raw water sources.
A Q&A with Snehal Desai, global business director for Dow Water & Process Solutions, about the power of RO (reverse osmosis) membrane technology — to provide cleaner water, save precious resources, and improve sustainability.
The Cincinnati Zoo uses an ultrafiltration system (UF) to treat stormwater. The reclaimed water is collected from 14 acres of the park, including parking lots, animal exhibit yards, rooftop drains, and walking path storm drains