Phoenix Turns 66 Billion Gallons of Wastewater into Gold for Farmers and Nuclear Power

Phoenix is making significant strides in water management by recycling 98% of its wastewater, amounting to 66 billion gallons each year. This efficient system ensures that the city maximizes its water resources in a region where water scarcity is a pressing concern.

Once treated, the reclaimed wastewater does not re-enter residential water supplies. Instead, it plays a crucial role in cooling the city’s nuclear plants and is utilized by local farmers. Chad Graham elaborated, “We provide them with water for their crops, and they, in turn, conserve drinkable water for our community.” This reciprocal arrangement enhances agricultural productivity while preserving essential drinking water.

The recycled water primarily supports non-edible crops, including hay, alfalfa, and cotton. Additionally, the wastewater is converted into fertilizer, benefiting farmers who cultivate these products. Graham detailed the treatment process, explaining, “We extract solids from the wastewater and send them to a digester. The microbiology in the digester breaks down impurities, allowing for the solids to be processed and used as fertilizer.”

Before reaching agricultural fields, the treated water travels through the Tres Rios Wetlands. These man-made wetlands offer flood protection, restore local wildlife habitats, and enhance overall water quality. After passing through Tres Rios, the water is distributed via the Salt, Gila, and Agua Fria Rivers, reaching various irrigation districts for agricultural use.

“Our goal is to recycle both water and solids to their fullest potential,” Graham added. Phoenix continues to lead by example in sustainable water management, showcasing how urban areas can effectively address water scarcity through innovative recycling initiatives.