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 ...

The effect of the oxygen transfer rate on trickling filter operating characteristics and performance cannot be determined precisely. It is not possible to obtain more than a rough estimate of the ...

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 ...