Seattle Membrane Plant Treats to Higher Levels - ENR | McGraw-Hill Construction

Description:
Faced with sprawling growth in the greater Seattle area, King County water officials have capitalized on the population’s environmental awareness to push through a $1.7-billion wastewater treatment system that could become the country’s showcase for advanced secondary treatment. Taking advantage of technological advances that lower energy needs and produce an effluent clean enough to be sold for nonpotable use, the county’s division of wastewater control is building a 36-million-gallon-per-day plant, the largest in the U.S. to use membrane bioreactors, borrowing from systems developed to treat drinking water.

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