filtration
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Pentair
Pentair began with five engineers and a plan to build high-altitude balloons. Sixty years later, its pumps, filters, ice machines and pool controls reveal the sprawling business hidden inside an ordinary glass of water.
SiTration, Inc.
SiTration is a Cambridge, Massachusetts materials-recovery company spun out of MIT that uses a patented, ultra-durable porous silicon membrane paired with electro-extraction to pull critical metals - lithium, cobalt, nickel, copper, and precious metals - out of mining waste, spent lithium-ion batteries, and refining streams. By replacing chemical-heavy, acid-dissolution processes with a tunable, energy-efficient membrane, SiTration aims to make the recovery of the metals behind batteries, EV motors, wind turbines, and data centers cheaper and cleaner.