FOX Engineering specializes in water and wastewater solutions that help cities and industries provide clean water.

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Recent Work

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IMG_4122 crop
Marshalltown, IA

Biogas Generator Replacement 2016

One of the city’s two biogas engine-generators permanently failed. It was 40 years old and would require more money to fix than it was worth ($1/4M). Sizing a new engine-generator had very little to do with the parameters of the existing engine-generator. The Performance Edge Project reduced the city’s need for capacity.

MBR Channels crop
Iowa

Conversion to River Discharge

CHALLENGE An amino acids plant producing animal feed supplements desired to convert from a pretreatment facility to a direct discharger. The pretreatment plant was a plug flow activated sludge plant consisting of equalization, a three-zone aeration basin, a post aeration anoxic zone, a re-aeration basin, and a final clarifier prior to discharging to a neighboring […]

Swift
Iowa

Dissolved Air Flotation Improvements

This pork slaughterhouse facility had a 35-foot diameter dissolved air flotation thickener and an 11’ x 52’ rectangular DAF unit for wastewater pretreatment. FOX was hired to review the DAF performance and recommend improvements.

Upcoming Events

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July 25, 2016

Kirkwood Annual Wastewater Conference

August 27, 2016

Shrimp and Bingo

September 13, 2016

AWWA Short Course