Westech Engineering, Inc.

Rene Ann Carson

Darrell Wayne Christianson

Eric Allen Lawrence

Rand S Faaborg

Brian Lee Primrose

Thomas Martin Dumbaugh

A combination biological contactor and self-backwashing filter system for water treatment is disclosed. The system may include a treatment vessel defining an upper chamber and a lower chamber. A biological contactor may be disposed within the upper chamber, and a filter may be disposed in the lower chamber. A contactor outlet conduit and inlet manifold may be used to transfer water from the biological contactor to filter cells within the filter.

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Ames, IA, United States of America

Rene Ann Carson