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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.
Businesses, schools, and other small generators are encouraged to review hazardous waste handling to prevent violations and protect public health.
