Membranes used for drinking water in Iowa is becoming a more common treatment alternative. High pressure membranes are used to remove regulated and unregulated contaminamts such as nitrate, ammoina, and dissolved minerals. Discharge of the concentrate stream can be challenging and the limiting factor in selection of this alternative....

Membranes are used widely to treat drinking water in Iowa. This presentation provides an overview of low and high pressure membranes used in Iowa, the water quality of various aquifers, regulatory requirements, pilot protocol and testing, and design considerations. This presentation will also include a brief IDNR General Rules Update....