marine & offshore / cuproban systems

FOULING PREVENTION SYSTEMS - CUPROBAN

The problem of fouling is very familiar to operators of seawater systems on ships, rigs, oil platforms, power stations, etc...
Marine growth such as mollusca, barnacles, mussels algae and slime enter seawater systems and find a spot where temperature, nutrients, pH and other environmental conditions are excellent for settling and breeding.  If this settling is not prevented by  colonies quickly develop resulting in problems such as turbulance, blocked pipes, impaired heat transfer efficiency and corrosion.

These problems can be solved by the use of Cuproban electrolytic anti-fouling and corrosion control systems.

The Cuproban system consists of copper and aluminium anodes which get a current from the control panel. The copper and aluminium hydroxide ions cause an environment that is unfriendly for marine life. The copper ions prevent the marine life larvae from settling down.  The aluminium hydroxyde creates both a flocculation effect and a protective layer, thus corrosion protection of the pipes.

Cuproban systems come with some very useful features coupled with proven reliability : - modular fully electronic control panel : different flow lines possible with one control panel - anode replacement announcement - different currents for flow / no flow  - pressure tested safety cap which can last many years The anodes are preferably installed in the sea chest.  

The anodes are designed for at least a dry dock interval.

Further information : www.cuproban.com.  Or contact Anotec at +32 2 532 25 20.

CATHODIC PROTECTION SYSTEMS FOR MARINE ENVIRONMENTS

Typical cathodic protection installations in marine environments are harbour walls, jetties en locks.

At harbour pile walls sacrificial anodes (aluminium) can be fixed with brackets or welded at the recesses of pile walls.

Besides aluminium anodes, also impressed current systems are in use in many harbour installations. Using high standard MMO activated titanium anodes adequate protection against corrosion can be obtained.

Together with Stelth Ag/AgCl reference electrodes this kind of corrosion protection can be controlled and maintained very efficiently.
The advantage of using MMO anodes is by far the very long lifetime compared to aluminium (or zinc). Anodes which are mostly calculated for 10 or 15 years.

Check out with our engineering department how cathodic protection can be economically applied to your marine or harbour project.