Conventional design practice normally would mandate costly tertiary filtration to meet advanced wastewater treatment effluent criteria and either chemical treatment or tertiary filtration for advanced ...

FORT SMITH -- City officials are weighing how -- and if -- to replace two failing water filters responsible for treating sewage for about a third of Fort Smith. The Massard Water Reclamation Facility ...

The Brooklyn City Council heaved a collective sigh of relief after hearing a report from a meeting with the Iowa Department of Natural Resources at the city council meeting on Monday, Sept. 21.

A pilot-plant trickling filter receiving domestic wastewater was investigated for effects of the addition of various levels of nitrilotriacetic acid (NTA). Results of the study showed that NTA had no ...

A view of the Urbana & Champaign Sanitary District's trickling filter system in its infancy in the 1920s at its plant in northeast Urbana. A plaque on the wall of the Urbana & Champaign Sanitary ...