Seattle startup Membrion raised $7 million to boost manufacturing of its ceramic membranes that treat wastewater.

Spun out of the University of Washington in 2016, Membrion aims to address a pain point in wastewater treatment, where existing solutions require companies to truck water away rather than treat it on the spot. It sells ceramic desalinization membranes that can be used to treat toxic runoff from manufacturing processes, removing salt and heavy metals such as lead, mercury, arsenic and copper.


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