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Marine Growth Prevention

A Safe Solution for Injection Into Any Seawater Circuits

In seawater-based processes, the cost of fouling can be substantial. Macro-fouling from mussels, clams, oysters, sea anemones and barnacles, combined with micro fouling from bacteria, slime and algae can greatly restrict the flow of cooling water to heat exchanger surfaces, accelerate localized corrosion by restricting oxygen diffusion and cause destructive turbulence at inlets - all which may affect performance and shorten the life of affected equipment. 

Xylem's Expertise in Coastal and Offshore Solutions

Xylem brings over forty years of experience in providing effective solutions for coastal facilities and offshore platforms across various industries, including oil and gas, marine, refining, and power. Our expertise encompasses: 

  • Offshore Structures: Fixed platforms, FPSOs, FLNGs, gravity-based structures, semi-submersibles, drill ships, and wind farms. 
  • Land-Based Facilities: Power plants and petrochemical industries. 
  • Marine Applications: Ships, vessels, tankers, naval fleets, container and cruise ships, as well as cargo and gas carriers. 

Challenges with Traditional Chlorination Methods

Chlorination is a well-accepted biocide for treating biologically fouled seawater; however, the manual use and bulk storage of chlorine is generally an unacceptable safety hazard on land or particularly offshore. Increasing regulatory concerns have limited the use of alternative methods, such as copper, due to its release into the aqueous environment. 

Introducing the Chloropac® Electrolyzer System

To address these challenges, the Chloropac® electrolyzer system offers a safer and more efficient solution. This system utilizes an active anode coating and direct electrical current to prevent marine growth and equipment failure. By generating a dilute, safe solution of sodium hypochlorite on-site, the Chloropac system allows for direct injection into seawater circuits, effectively combating marine growth. The system complies with stringent regulations and is available in various basic cell designs to meet diverse needs. 

 

Marine growth like barnacles and algae can cut ship speed by up to 30%, increasing drag, fuel costs, and emissions