United States sewers hide $13 million in metals per million residents, including an estimated $2.6 million in gold and silver
Sewage sludge from wastewater treatment plants contains valuable metals. Researchers estimate these metals could be worth millions for large communities annually. Gold and silver alone contribute significantly to this potential economic value. Recovering these metals presents technical and economic challenges for cities. This discovery highlights urban resource potential and material consumption patterns.
Sewage sludge from wastewater treatment plants contains valuable metals. Researchers estimate these metals could be worth millions for large communities annually. Gold and silver alone contribute significantly to this potential economic value. Recovering these metals presents technical and economic challenges for cities. This discovery highlights urban resource potential and material consumption patterns.
