What is your technology?
Xylem’s Response: OxeliaTM is a smart water process solution that uses Ozone-Biologically Active Filtration (BAF) in an integrated process. The integration of these traditionally stand-alone processes into a single unit process provides users with the ability to achieve a predictable effluent water quality while actively seeking opportunities to reduce the applied Ozone dose. Oxelia results in up to 25% lower operational costs for utilities.
What are the benefits to implementing your technology?
Xylem’s Response: Ozone-BAF technologies are paired for their ability to grow biofilms, destroy recalcitrant carbon, provide pathogen removal, and reduce contaminants of emerging concern (CECs). Despite the clear process benefits of using these technologies in tandem, they have traditionally been operated separately which leads to complex control strategies and high operational costs. The Oxelia integrated solution retains all of the process benefits listed above, but the integrated control scheme is able to reduce operational costs by as much as 25%! Furthermore, with the integrated control scheme, the overall effluent quality is much more predictable as the accuracy of the actual delivered water quality is within 0.1% of Oxelia’s setpoint. These results have been proven at several different locations demonstrating the ability of the Oxelia to autonomously compensate despite different source waters.
Given utilities’ current challenges with COVID-19, it has never been more critical to assure high-water quality in effluent, seek opportunities to reduce operational costs to offset the recent revenue shortfalls, and provide digital solutions that reduce the burden on operators and allow them to be more efficient and productive with their time.
Oxelia plays an important role in the advancement of potable reuse. As traditional treatment trains have used reverse osmosis (RO) technologies, we are finding that RO systems are high in capital and operational costs, and generate a brine stream with high toxicity. Communities that are inland can rely on the Oxelia solution to deliver the necessary pathogen reduction, TOC reduction, and CEC reduction in a more cost-effective method and won’t create the challenging brine stream associated with RO.
Has the technology been tested, demonstrated, or implemented anywhere to date?
The Oxelia integrated Ozone-BAF solution has been implemented at several high profile potable reuse projects.
- Hampton Roads Sanitation District (HRSD) SWIFT Research Center: 2018 - Present
- pureALTA (Altamonte Springs, FL): 2017 - Present
- OneWater Nevada (Reno, NV): 2017 - Present
- LASAN – DC Tillman WRF: 2016 - 2019
- Denver Water: 2018
- LACSD – San Jose Creek WRP (Whittier, CA): 2013- 2015
What are some of the next steps needed to advance the technology?
Oxelia has consistently demonstrated the ability to meet and deliver the performance requirements, as well as driving down operational costs. As a result, the next logical step is to create more adoption of the technology at full-scale. Fitting a full-scale facility with the Oxelia not only delivers the inherent benefits of paired Ozone-BAF technologies, it also helps broaden the scope of utilities that can embrace potable reuse as part of their sustainable future water supply and does so in the most cost-effective, performance-driven manner.
As a new technology to the LIFT program in 2020, we are excited to use LIFT as a forum to connect with other like-minded utilities and consultants that are seeking advanced processes and digital tools for their potable reuse needs.Kevin FlisBusiness Develop ManagerXylem, Inc.