An Illinois Plant Deploys the Aero-Mod SEQUOX Process to Provide Biological Treatment With Room to Grow

An innovative biological nutrient removal process helps an Illinois village complete a successful plant expansion, improve treatment quality and end a consent decree.

May 16, 2022 | by Suzan Chin-Taylor |

Biological Nutrient Removal (BNR) Water Quality Plant Upgrade Aero-Mod, Inc. Glasco Ultraviolet Hach Hydro-Dyne Engineering Smith & Loveless, Inc. Activated Sludge Process Phosphorus Removal Nitrogen Removal Dissolved Oxygen System Inflow and Infiltration (I&I) Pumps UV Disinfection Digester Belt Filter Press

An Illinois Plant Deploys the Aero-Mod SEQUOX Process to Provide Biological Treatment With Room to Grow — Operator Todd Tatum (left) and contract operator Dale Youngers at the Hinckley Wastewater Treatment Plant.

An Illinois Plant Deploys the Aero-Mod SEQUOX Process to Provide Biological Treatment With Room to Grow — Youngers believes it is imperative to keep the plant well operated and maintained; he sees his contract operations company, TEST, as a guardian of the village’s investment.

An Illinois Plant Deploys the Aero-Mod SEQUOX Process to Provide Biological Treatment With Room to Grow — Dale Youngers, shown with the Smith & Loveless pump that transfers inflow to the biological nutrient removal system, believes in close communication with village trustees.

An Illinois Plant Deploys the Aero-Mod SEQUOX Process to Provide Biological Treatment With Room to Grow — Youngers is shown at the electrical control panel for the plant’s two submersible mixers (Wilo USA).

An Illinois Plant Deploys the Aero-Mod SEQUOX Process to Provide Biological Treatment With Room to Grow — Team members like full-time operator Todd Tatum support sound operations by thinking outside the box and solving problems in-house.

An Illinois Plant Deploys the Aero-Mod SEQUOX Process to Provide Biological Treatment With Room to Grow — Dale Youngers (left) and Todd Tatum with the 2020 Class C Plant of the Year award trophy.

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The Village of Hinckley needed to upgrade its rotating biological contactor plant to activated sludge to meet a consent decree. Looking to minimize impact on ratepayers, the village’s engineers and its operations and maintenance contractor found a solution through a small-footprint aeration technology that would save the expense of a large capital upgrade, while being easy to operate and maintain. They chose the Aero-Mod SEQUOX activated sludge process, which provides biological nutrient removal in a configuration that can be easily expanded to accommodate growth. The system’s successful performance has been partly responsible for the facility’s recognition as 2020 Class C 2020 Plant of the

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