The town of Schererville Indiana has a population of approximately 20,000 and is located at the intersection of SR-41 and SR-30

The solids handling facilities at the Schererville wastewater treatment plant were severely overloaded. Conventional drying beds could not keep up with sludge production, creating a large solids inventory and placing the plant operators in an extremely tenuous position. NIES Engineering designed a belt filter press to aid in dewatering biosolids at the plant. The filter press, installed in a previously existing building, uses a polymer to enhance the drying process. Additionally, variable frequency drives were provided on pumps to allow flexibility in operation of the system. Incorporated into this project was a truck loading station to allow direct hauling of the thickened sludge and piping to allow transfer of thickened sludge to the existing drying beds.

Depending on operational requirements, the Schererville wastewater plant staff now has the ability to dewater biosolids for direct disposal or to reduce the solid’s volume to maximize their drying bed capacity. The Belt Filter press not only provides flexibility in operation, but in disposal options as well.

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