2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/25/2021 | 8:30 AM - 10:30 AM | ADDRESSING THE CONTRIBUTION OF INDIRECT POTABLE REUSE TO INLAND FRESHWATER SALINIZATION | Virtual Platform
ADDRESSING THE CONTRIBUTION OF INDIRECT POTABLE REUSE TO INLAND FRESHWATER SALINIZATION
Inland freshwater salinity is rising across many regions of the United States and globally, a phenomenon called the freshwater salinization syndrome (FSS). We explore a potential conflict between managing the FSS and augmenting drought prone water supplies through indirect potable reuse (IPR). IPR has the potential to exacerbate the FSS because salts added to the sewage collection system, or during the treatment process, are not removed by conventional treatment. Here we evaluate the relative contribution of three sources—two rapidly developing watersheds and a wastewater reclamation facility—to rising sodium concentration in a regionally important drinking water reservoir in Virginia. Sodium mass loads from the reclamation facility are comparatively small when evaluated on an annual basis but dominate mass loads to the reservoir during dry weather periods. Across all timescales and sources, sodium concentrations are highest in water discharged from the reclamation facility. Sodium in reclaimed wastewater originates from chemicals used in the treatment process, industrial discharges, human excretion, down drain disposal of drinking water, and sodium-rich household products.
- Major ions
- Urban streams
- Dry rivers
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Presenters/Authors
Shantanu Bhide
(), Virginia Tech, bhidesv@vt.edu;
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Stanley Grant
(), Virginia Tech, stanleyg@vt.edu;
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