Jupiter Water Utilities (Town) owns and operates a 30 million gallon per day (MGD) drinking water treatment facility comprising of nanofiltration (NF), reverse osmosis (RO), and anion exchange (AX). The Town also owns pilot-scale NF and RO units that are utilized for pretreatment optimization, membrane selection, contaminant of emerging concern rej...

A major drawback of utilizing clarification/sedimentation ahead of low-pressure membranes is the issue of organic polymer addition (clarifier aid). Most membrane suppliers and design engineers restrict the use of this product to prevent potential accumulation within the membrane fiber and subsequent loss of beneficial use. Cationic polymers are s...

Selection of an appropriate pretreatment process for a nanofiltration (NF) or low-pressure reverse osmosis (LPRO) system is critical to optimizing recovery, water quality, and clean-in-place (CIP) requirements. Key pretreatment considerations include whether or not to remove dissolved Fe and Mn ahead of NF or LPRO, whether biofouling control is ...