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 Overview
Electrochlorination uses electrolysis of
seawater or of salted freshwater to produce sodium hypochlorite (NaOCl)
onsite, avoiding the storage hazards, purchase costs
and handling costs associated with commercial liquid
chemicals.
Electrochlorination
systems by Farwest Corrosion Control Company are
fully automated and continuously dispense controlled
amounts of hypochlorite to avoid marine growth biofouling.
These marine antifouling systems consist of
flow-through electrolizer piping system where a rectifier unit applies a DC
potential across concentric titanium electrodes. The anode at the
center of the piping is coated with mixed metal oxides (MMO). Typical anode life is 7 years.
Farwest will design
custom electrochlorination systems based on sodium
hypochlorite requirements in kg/hour and the
physical plant layout. Typical marine system throughput
will range from 0.5 kg/hour for a small offshore
cooling system to 4 kg/hour for a large cruise ship.
Throughput for chemical processing plants can be in
excess of 100 kg/hour. Farwest will manufacture each system on a turnkey
basis and supervise its installation.
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Electrochlorination flow-through electrode
systems |
Electrochlorination Benefits
- Effective against
macro and micro marine bio-fouling.
- Continuous,
automated process.
- Avoids hazards,
costs and handling associated with commercial
hypochlorite.
- Compact installation
with flow-through piping.
- Safe, low-voltage
operation.
- Long life, minimal maintenance.
Electrochlorination Applications
Recommended wherever seawater is used for cooling, as
a ballast, or is pumped for any purpose:
- Marine vessel cooling systems.
- Marine condensers, heat exchanges, ballast tanks.
- Marine fire water pumping
systems.
- Offshore oil & gas installations.
- Offshore power stations.
- Desalination plants.
- Chemical processing
plants
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