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MX CEDI Modules
Page 30 of 32 IP-MAN-MX-Rev E
8. SHUTDOWN AND STORAGE
This section contains shutdown procedures for a MX module. Under certain
circumstances, bacterial growth can occur quickly in water left stagnant within each
module and the overall system.
8.1 System Shutdown (for periods exceeding 7 days)
• Shut off feed water to MX module(s)
• Drain standing water out of MX module(s)
• Close isolation valves to prevent evaporation of water in membranes and resins.
8.2 Startup After Shutdown
• Divert product outlet to drain.
• Turn on feed water to MX module(s)
• If desired, sanitize MX module(s).
• Operate unit with DC power on, flushing to drain.
• Send to use point when desired product water quality achieved.
8.3 Disposal
• It is not practical to rebuild MX modules
• At end-of life they can be disposed of as normal (non-hazardous) waste
o First flush with 5% NaCl for about 5 minutes at minimum to nominal flow rate
o Then flush with tap water for at least 30 minutes
o Both steps with DC power off.
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