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System: Nassau Amelia Utility

Description:   The existing sand filters at the NAU WWTP was failing.  Refurbishment of the existing filters commenced in November 2021.  The project’s scope included removal and replacement of the underdrain system, travelling bridge, backwash and washwater pumps, and installation of new sand media.  MKI was the refurbishment contractor authorized by SUEZ to perform modifications to the existing filters.  The project was substantially complete on January 31, 2022.

Automatic Backwash Filter Diagram
Figure 1: Automatic Backwash Filter Diagram


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