How do a number of large food processing plants and a sensitive waterfowl habitat co-exist in a relatively small agricultural community? In Grandview, Wash., the key is the municipal wastewater treatment facility.
Treatment system supervisor David Lorenz and his team run a versatile process capable of handling the high-solids wastewater from the food industry, while recycling treated water to nearby Washington State Wildlife Department lands used by migrating ducks and geese. Biosolids from the plant are applied to area farms.
Normally, Grandview uses an oxidation ditch system to treat an average of 1.5 mgd from this central Yakima Valley community. But the
