Memstor

Long Term Membrane Storage Agent

Product For Preventing Membrane Type Mixing Ratio pH
Memstor™ Microbiological growth within membrane systems TFC, CA, UF 1 pound to 6 gallons water Medium / Low

Memstor™ safely prevents microbiological growth within membrane elements and in membrane systems during long and short-term storage.

What is Memstor and what does it do?

Memstor™ safely and effectively prevents microbiological growth within membrane elements and systems during short- and long-term storage. It replaces the use of formaldehyde, sodium metabisulfate and other chemicals which are typically used. While formaldehyde or sodium bisulfite are either hazardous or unstable, Memstor™ is effective long-term and does not create environmental or health risks. Memstor™ is compatible with all membrane types and rinses easily from membranes. The completeness of rinsing can be conveniently monitored by conductivity meter to the background conductivity of the rinse water. Memstor™ is packaged as a dry, stable, non-reactive powder for ease of transportation and storage.

How do you use Memstor to store elements in membrane systems?

You must have a membrane clean-in-place (CIP) system to use this procedure. Clean the membranes with King Lee cleaners prior to storage. Using good quality water (for example, RO product water), mix at a ratio of one pound Memstor to 6 gallons of water. Recirculate storage solution at low pressure and high flow through membranes for minimum of 15 minutes to drive out entrapped air pockets. After recirculation, shut system down making sure storage solution does not drain out of membranes. After storage, rinse membranes with good quality water for 30 minutes before system start up.

How do you use Memstor if you do not have a clean-in-place (CIP) system?

Clean membranes with King Lee cleaners. Using good quality water (RO product water), mix a ratio of one pound Memstor to 6 gallons of water. Place membranes in storage containers, such as rugged plastic bags that can be sealed, containing Memstor solution. After storage, place membranes in system and rinse with good quality water for 30 minutes prior to system start-up.

Rev. 7/2012