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Reverse osmosis treatment requires sufficient feedwater pretreatment to prevent membrane fouling. Depending on the feedwater, pretreatment can be critical to ensuring a sustainable process.
Decomposing garbage is the feedstock for the methane gas that King County, Wash., plans to use to power about 24,000 homes.
EPA announces new measures to address PFAS contamination, including expanded testing, stricter regulations, and a polluter-pays framework.
