The United States generates seven million tons of sewage sludge annually, enough to fill 2,500 Olympic-sized swimming pools. While a portion of this waste is repurposed for manure and other land applications, a substantial amount is still disposed of in landfills. In a new study, researchers have uncovered an efficient way to use leftover sludge to make biodegradable plastics.
source https://www.sciencedaily.com/releases/2020/12/201214164320.htm
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