FEM-2 Flow-Through Electrochemical Module Cell
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FEM-2 cell, 1992
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A device to electrochemically treat water.
A device to electrochemically treat water.
Flow-through electrochemical module cell of FEM - 2 type, flow-through elec-trochemical
linear reactor of RPE-L type. Ideologically, FEM-2 module is evolution of FEM-1
module. However, technically it is an absolutely new device that essentially
dif-fers from its prototype - FEM-1 module. FEM-2 module is the first device
with precisely indicated absolute and relative dimensions of electrode chambers
(which is crucial for electrochemical treatment of low-mineralized electrolyte
aqueous solutions and fresh water) that also considerably decreases the risk
of bi-polar areas' emergence on elec-trode surfaces. The device can be commercially
manufactured using plastic collectors made not with the help of lathe as in
case of FEM-1 module, but by casting plastic parts in press-molds. That was
achieved thanks to a different structure of collector head end-points and, correspondingly,
collector heads themselves.
In the period of legal (that is, in conformity with license agreements and
under the authors' control) manufacture of FEM-2 modules (1992 - 1995), the
joint Soviet-British venture EMERALD produced over 100 000 FEM-2 modules, which
were em-ployed in STEL, EMERALD and other electrochemical systems.
From 1995, FEM-2 module production, which had been under constant scien-tific
and engineering control of the authors up to that time, along with the production
of all electrochemical systems fitted with it, was ceased by the authors due
to the de-velopment of the third generation of compact electrochemical diaphragm-type
reac-tors - FEM-3 modules.
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Electrochemical unit of STEL-4N device.
Electrochemical unit of the device is represented by four FEM-2
modules. In 1992, STEL-4N device was approved by the USSR Ministry of
Health for commercial manufacture and wide application in medical facilities.
The device's output is 40 l/h of neutral anolyte (AN), consumed electric
power is 100 W. Moscow, VNIIIMT, 1992.
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