Product Information
8
2-2
S
YSTEM
R
ECOVERY
W
HAT IS
RO
R
ECOVERY
?
An RO Cartridge has 1 feedwater inlet and 2 water streams exiting it. One exiting water stream is called the RO Permeate. The
other is called the RO Reject.
The RO % Recovery is a comparison of the RO Permeate flow rate to the RO Feedwater flow rate. It can be thought of as how
much water you ‘recover’ from the RO as a useful product.
It is calculated as:
% Recovery = [(Permeate flow rate / Feedwater flow rate] * 100%
Membrane % Recovery is defined as the recovery of a single RO Cartridge.
System % Recovery is defined as the amount of water produced relative to the amount going into the entire Elix System.
In most cases, the Membrane and System Recovery values will not be the same number.
E
LIX
S
YSTEM
R
ECOVERY
An Elix System can be operated with a System Recovery between 30% to 70%. This value will depend upon several factors
including the chemical makeup of the Feedwater.
System Recovery is defined above. See “What is RO Recovery?”
The Elix System Recovery is factory pre-set. If desired, the Elix System Recovery can be modified. Contact Millipore SAS for
assistance.
A System Recovery set too low will waste water. A low recovery occurs when a lot of RO Reject Water is sent to drain relative to
the RO Permeate flow rate (i.e. RO Recovery = 5%).
A System Recovery set too high can possibly cause the RO Cartridges to become clogged. A high recovery occurs when too little
RO Reject Water is sent to drain relative to the RO Permeate flow rate (i.e. RO Recovery = 80%).
