Nanofiltration Concentrate Blending with Reverse Osmosis Raw Water - W23XX - Town of Jupiter

Byproduct water (concentrate) produced by membrane treatment must be managed. Water quality characteristics of nanofiltration (NF) concentrate make it suitable for blending and to be repurposed. Since 2010, when the NF Plant was placed into service, NF concentrate has been supplied to the Loxahathcee River District (LRD), through an Interlocal Agreement (IA), for blending with irrigation quality (IQ) water. With expiration of the IA on the horizon (2026), and uncertainty of favorable negotiations with LRD for a renewed agreement, alternative management options for NF concentrate were considered in the 2022 Water Master Planning effort. A promising option of blending NF concentrate with Floridan Aquifer (FA) raw water for supply to the reverse osmosis (RO) membrane treatment plant resulted. Preliminary conceptual analysis and blend studies for this strategy provide significant positive benefits for the future operation of Jupiter's water treatment plant. This project includes pilot testing, design, permitting, and construction of improvements for blending NF concentrate with FA raw water for RO treatment, enabling the Utility and it's customers to benefit by repurposing NF concentrate as a resource to supplement raw water supply to the RO treatment plant. As of October 25, 2022, this project is included in the Town of Jupiter FY 2023-2027 Budget CIP. An engineer has been selected for the project. Bidding is estimated to take place in December of 2022. *Project information has been obtained through a public capital improvement plan (CIP). A CIP is a financial schedule for short- and long-range projects which is updated regularly. Information listed in the CIP often evolves based on funding availability and the project details, including timeline and value, are subject to change. The content management team will continue to pursue additional details as they become available.

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