Low maintenance and built-in redundancy - Grand Island, Nebraska As a critical part of a $21.5 million upgrade to its wastewater treatment facilities, the City of Grand Island, Nebraska, has invested in an advanced grit removal system for high-performance grit removal from the wastewater treatment plant (WWTP) headworks. Designing for built-in redundancy and achieving grit particle removal performance down to 90 microns were important factors in designing the optimum solution for the plant operators, replacing aging and inefficient equipment. An Advanced Grit ManagementTM solution from Hydro International was selected and proved its capability with challenging first-flush conditions experienced within days of being commissioned. “The existing wastewater infrastructure at Grand Island was a

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