Staging - Reverse Osmosis Systems Print E-mail

Staging - Here, we'll consider two types of Staging, "Reject Staging" and "Product Staging".

Reject Staging

"Reject Staging" refers to a technique where the reject from one group of reverse osmosis pressure vessels becomes the feed stream of a second group of RO pressure vessels.

Reject staging is used to increase the recovery of water. A one stage system typically could recover 50 - 60% of the feed water stream with 2 and 3 stage systems operating at 75 - 80% and greater than 85% respectively.

Product Staging

"Product Staging" often referred to as "multiple pass", is a technique where the product of the first group of reverse osmosis pressure vessels becomes the feed water stream for a second stage. Product staging is used to increase the quality of the product water.

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