Siemens Industry, Inc.

Siemens Water Technologies Pte. Ltd.

Westech Engineering, Inc.

Eric Allen Lawrence

Joseph Edward Zuback

Darrell Wayne Christianson

Rand S Faaborg

Brian Lee Primrose

Rene Ann Carson

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.

Combination biological contactor and self-backwashing filter systems

A phosphorus removal system is operable to remove phosphorus from an influent. The system includes a first section receiving the influent and discharging a first flow. A first coagulant inlet is positioned upstream of the first section and is in fluid communication with the influent to introduce a first coagulant selected to precipitate phosphorus. A second section receives the first flow and discharges a second flow, and a third section receives the second flow and discharges an effluent. A second coagulant inlet is positioned downstream of the first section and upstream of the third section to introduce a second coagulant selected to precipitate phosphorus.

Phosphorous removal system

Phosphorus removal method

Phosphorus removal system and process

Growing community of inventors

Madrid, IA, United States of America

Eric Allen Lawrence