Designing PWD's AWT Demonstration Facility to Gain Public Acceptance (CA)
Pure Water Antelope Valley (PWAV), a potential 5-MGD potable reuse program, is a major undertaking by the Palmdale Water District (PWD) to diversify its water supplies. A demonstration facility / education center, with unique features, is being designed by PWD to gain public acceptance for PWAV.
Program Management for Utilities - Using Your Program to Drive Innovation (CA)
LADWP is currently developing a Master Plan for the Operation NEXT Program. This mega-infrastructure program requires innovative, large-scale program management techniques and methods that will drive improvements in quality and performance, and can serve as a blueprint for setting up data-driven processes and tools for utilities to aid decision-making.
Impacts of WW Performance on Advanced Treatment: Membrane Edition
Water research foundation project 4833 has quantified water resource recovery facility operational and effluent water quality parameters that significantly influence design of downstream membrane processes for advanced reuse. This presentation will describe the correlations with influencing factors and a new desktop piloting apparatus to reduce design uncertainty.
Tracking Down the Sources and Fate of PFAS in Land-Applied Reused Water (OR)
PFAS pose a threat to many reuse applications due to concerns about potential contamination of soils and groundwater. CWS has worked to identify and mitigate the main sources of PFAS in the sewer shed, and has been collecting data from fields using reuse for irrigation to understand and mitigate potential risks.
Piedmont Hospital Reuse System – Increasing Operational Resilience and Reducing Cost (GA)
An MBR/UV/RO system was commissioned at Piedmont Hospital in December 2022 to reuse onsite generated wastewater, increasing resilience of clean water supply at lower cost, reducing discharge by 55% and thus saving the Atlanta watershed resource in line with Atlanta City Councils Green Infrastructure strategic action plan.
The Role of Desalination to Offset Growing Water Scarcity
60 Minute Panel
The IDA panel will address various global trends and topics related to desalination solutions, policy, and market development, from an international perspective. They will present seawater and brackish water desalination, highlighting the opportunity desalination solutions offer to offset growing water scarcity as part of integrated water resources management: desalination energy consumption, cost, eco-brine management, integration of AI, and valuable resource recovery programs. As water is a key element in reaching the seventeen UN Sustainable Development Goals, the discussion will also include the potential for engagement with the United Nations and other non-governmental organizations to promote greater water sustainability using unconventional water solutions, specifically desalination and water reuse. Finally, the panel will provide data to dispel the stigma using examples from countries where environmental stewardship is at the forefront of the agenda, such as Australia, the USA, Saudi Arabia, UAE, and Spain.
Collaborative Delivery for Reuse: Comparing Design-Build, CMAR and Non-Traditional Project Delivery Methods to Maximize Outcomes
Industry Breakout Session (60 min)
This panel will discuss the pros and cons, expectations versus reality, unforeseen outcomes and strategies to consider when using different collaborative delivery methods for capital improvement projects. The panel will include a variety of perspectives from Owners who have experienced both traditional and non-traditional processes to provide a comparison of the various delivery methods typically used in the industry. The panel will also discuss how the process can be maximized to handle the increased need for improving schedule, maximizing spending and utilizing innovation for reuse and other water or wastewater treatment projects.
Microplastic Prevalence & the Importance of Consumer Messaging for Potable Reuse
WRF 5155 represents an unprecedented proactive effort to develop appropriate microplastics consumer messaging for utilities. This research addresses both a practical and perception problem for potable reuse treatment facilities, considering the use of both membrane processes that can shed microplastics and wastewater sources known to have ubiquitous microplastic contamination.
Water Workforce for Resilient Communities: Engaging the Next Generation
This presentation will highlight two ongoing projects currently underway which aim to address critical staffing storages at water and wastewater utilities in North Georgia by effectively recruiting, engaging, and educating the next generation of water workers.
Quantification of Pathogen Removal through Tertiary and Secondary MBRs (MWD) (CA)
The Metropolitan Water District of Southern California (Metropolitan) and Los Angeles County Sanitation Districts (LACSD) are jointly considering a 150-MGD potable reuse program. MBR pathogen removal analysis approaches from tertiary MBR demonstration testing, and methods to evaluate pathogen removal in a secondary MBR will be presented.
Reuse, RO, and PFAS? Implications for Treatment and Destruction
This presentation will highlight results from field pilot-scale assessments performed on the rejection of PFAS by high-pressure reverse osmosis (RO) / nanofiltration (NF) membranes and the subsequent destruction of PFASs in membrane concentrate. Implications on the fate and opportunities for PFAS treatment in reuse will be overviewed.
Atmospheric Water Capture: An Emerging Way to Reuse Water from the Air
Atmospheric water generation (AWG), or water capture, is gaining attention for home water use, mobile military water needs, and even several breweries that market water from the air.
Thinking Big, Building Small: Demonstration Facilities to Support Water Reuse
Whether potable or non-potable, water reuse often has initial political and public challenges and concerns about water quality. Small demonstration scale systems can provide political and public engagement opportunities, engineering concepts and efficiency evaluation, and operator training. This presentation will highlight water reuse demonstration systems implemented across the US.
Optimizing Your Reuse Plant Operations (SC)
The presentation will cover the basics, benefits, and case studies of the Partnership for safe/clean water programs and how they can and have been used to optimize a reuse or recycling water plant.
Ozone-BAC in California DPR Projects – There Are Knowns and Unknowns (CA)
In this paper, we will summarize current state of knowledge on Ozone-BAC and present the gray areas with knowledge gaps and what we can do to fill the knowledge gaps so we can rely on ozone-BAC for effective chemical control in DPR projects.
How to Plan for PFAS in Carbon-Based Potable Reuse Implementation
With impending Per-and-polyfluoroalkyl substances (PFAS) rulemaking, removal of PFAS is becoming critical for potable reuse projects. However, removal of PFAS is expected to be minimal across Ozone-BAC treatment steps. Therefore, the path forward on how to plan for PFAS treatment/destruction within carbon-based potable reuse implementation will be presented.
Evaluation of WRRF Alternatives for Water Reuse at Zoo Miami (FL)
Black & Veatch (BV) partnered with the Miami-Dade Water and Sewer Department (MDWASD) to develop a water reuse system for the Zoo Miami to provide a more sustainable and cost-effective alternative to supply water for animal operations. BV evaluated several treatment alternatives for the design of a water reuse system.
Multi-Criteria Decision Analysis Comparing Water Reuse and Seawater Desalination
The decision to invest in alternative water resources—like wastewater reuse or seawater desalination—for potable water production depends on a variety of disparate factors. Multi-criteria decision analysis (MCDA) provides a framework to study how techno-economic, environmental, and social factors influence this decision as a function of plant capacity and location.
A Practical Means to Measure Membrane Integrity in IPR/DPR Reuse: Pressure Decay Testing in UF and MBRs.
Wastewater reuse with membrane separation represents a pathway toward increased water supply resiliency. To meet increasingly stringent pathogen log-removal value (LRV) requirements, the preferred advanced wastewater treatment train consists of a conventional activated sludge system with a secondary clarifier, followed by microfiltration/ultrafiltration (MF/UF), reverse osmosis (RO), then a UV-advanced oxidation process (UV-AOP) followed by storage in an environmental buffer such as an aquifer. However, footprint and capacity advantages of membrane bioreactors (MBRs) over conventional sludge/clarifier/UF treatment are leading to an increase in MBR applications in reuse treatment trains. While the pressure decay test (PDT) has long been recognized by the federal Membrane Filtration Guidance Manual (MFGM) as a direct integrity test for LRVs in drinking water membrane systems and wastewater reuse with UF, its use in MBRs has yet to be fully realized in the US. This presentation describes the application of PDTs in wastewater reuse, including UF and MBR, and presents MBR PDT results at full-scale internationally, and recent developments in US MBR applications.
