Technology is the answer to many of the world’s ills, not withstanding water sustainability. Now, new technology allows corporate owners to more effectively manage water consumption.
For example, Xylem, www.xyleminc.com, Rye Brook, N.Y., has been commissioned to deliver a unique water reuse solution to help increase the supply of purified, recycled water in Los Angeles. The goal is to ensure the City of Los Angeles Terminal Island Water Reclamation Plant complies with California’s stringent groundwater recharge regulations for indirect potable reuse in the safest and most cost-effective way possible.
The technology implementation started May 5, when California’s state water board approved emergency drought regulations that aim to slash water use in urban areas by 25%. The measures call for cities and water agencies to reduce water usage by 8-36%. As a proven approach that can help meet growing water demands, water reuse safeguards existing water supplies. The technology produces high-quality water at a lower lifecycle cost than developing a new water supply, and delivers a resilient, drought-resistant water source with valuable economic and environmental benefits.
Xylem’s Wedeco MiPRO photo AOP solution will be installed as a barrier against pathogens and contaminants that cannot be removed by other technologies. The MiPRO photo system is part of an expansion of the plant at the advanced water purification facility, including microfiltration and reverse osmosis prior to AOP. The customized solution, validated through extensive pilot-scale testing at the plant, will be the first greenfield AOP design employing ultraviolet light with chlorine for indirect potable reuse.
The Terminal Island Water Reclamation Plant treats wastewater from more than 100 businesses in the industrialized Los Angeles harbor area and from 130,000 residents, including the communities of Wilmington, San Pedro, and a portion of Harbor City. The plant purifies tertiary effluent, producing potable water quality for recharging the stressed drinking water aquifers, specifically important in the face of the ongoing drought. And the recycled water will be used as a barrier against seawater intrusion to protect the groundwater against increased salinity, as well as a supply to local industries.
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