Integrating water reuse and stormwater management into constructed wetland designs to enhance water supply and multi-purpose project benefits

Project ID: 22006
Principal Investigator: Nathan Kuhnert
Research Topic: Desalination and Water Treatment
Funded Fiscal Years: 2022, 2023 and 2024
Keywords: None

Research Question

The proposed project aims to answer several important research questions about the implementation of wetlands to accomplish engineering goals to meet water supply needs while simultaneously achieving multiple ancillary benefits.

• Can constructed wetlands address dual Indirect Potable Reuse (IPR) and stormwater treatment needs, thereby facilitating both water supply augmentation and water quality improvement of impaired water bodies?
• More specifically, how can constructed wetland designs be optimized to treat IPR water and stormwater, which have different flow regimes and water quality profiles?
• Can constructed wetlands replace or reduce costly advanced water treatment (AWT) processes that are typically used for IPR projects?
• After compiling existing wastewater, stormwater, and environmental CEC datasets, what additional data collection/analyses are needed and most beneficial for site selection and design?

We hypothesize that constructed wetlands can be optimized to achieve IPR water supply augmentation benefits while also being able to treat stormwater. We also hypothesize that constructed wetlands can reduce and potentially even replace AWT processes that are typically used to ensure IPR projects meet regulatory requirements and address stakeholder needs.

Need and Benefit

Addresses three Developing Water Supplies needs statements identified in the SSIP: (1) Enhance water management decision making by quantifying the non-monetized costs and benefits of potable and non-potable water reuse compared with other water supply sources; (2) Reduce the environmental impacts of water treatment by improving concentrate management; and (3) Develop innovative new water treatment systems (membranes, systems, processes, etc.) for treatment of impaired water for various uses.

Contributing Partners

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Research Products

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Last Updated: 6/22/20