The 16-in. Filmtec Reverse Osmosis (RO) filtration membranes offer an active surface area of 1,725 ft 2 — a four-fold increase in active surface area compared to the 8-in. RO elements currently in use. With this dramatic increase in active surface area, the membranes deliver a reduction in the number of required permeate O-ring seals, decreasing both maintenance and operation costs. It also decreases the number of membrane elements required for the same quantity of product. (For more on RO, see p. 20) — Dow Water Solutions, Midland, Mich.
… As Do these Reverse Osmosis Membranes
| By Chemical Engineering