System Description

The system provides a safe and economic electrolytic process for the on-site generation of a biocide solution from seawater to disinfect aquatic invasive species in ballast water. Ballast water treatment is accomplished using a simple three-step process of filtration, injection of a sodium hypochlorite solution, and residual oxidant neutralization. The first phase is filtration using a 40-micron stainless steel mesh filter to remove large particles and sediment. The second phase of the treatment process is the electrochemical generation of the sodium hypochlorite solution.

This involves passing a small supply (1% of total ballast flow) of seawater, either from the incoming ballast water line or sea cooling water, through electrolytic cells. The resulting disinfectant solution is injected directly into the incoming ballast water line where it will oxidize potential aquatic invasive species. The third and final treatment process phase is residual oxidant neutralization to ensure environmental acceptability. When the treated ballast water is ready to be discharged, sodium thiosulfate is injected directly into the ballast water discharge line.


The RADClean® BWMS applies 40-micron filter: a fully automatic self-cleaning operation that handles heavy sediment loads. The filtration system has both vertical and horizontal filter options, significantly reducing its footprint where space is tight. Other advantages include:

  • Fully automatic self-cleaning filter handles heavy sediment loads
  • Long service life due to anti-corrosion coatings and stainless steel screens
  • Low operating pressures
  • Minimal flow loss during cleaning

BWMS Advantages

  • Intrinsically safe hydrogen management system
  • Limited operator intervention
  • Robust components
  • User-friendly
  • Easy maintenance

Range of Products

This system has two main processes: Filtration and Electrochlorination. The Auto Backwash Filters supplied by our vendors, the wide range of capacities might be supplied up to 100 m3/hr. The Electrochlorination System is our company products be able to design and manufacture from 100 m3/h to 8000 m3/h which is sharply more than the existing vessels.

Foot print (m3)
Auto Backwash Filter Electrochlorination Neutralization SUM
RAD-100 100 0.5 1.8 0.9 3.2
RAD-250 250 0.7 2.5 1 4.2
RAD-350 350 0.8 2.7 1.4 4.9
500 0.9 3.3 1.4 5.6
RAD-800 800 1.5 3.9 1.6 7
RAD-1000 1000 1.8 4.1 1.7 7.6
RAD-1500 1500 2.8 6.2 1.7 10.7
RAD-2000 2000 3.5 7.2 1.8 12.5
RAD-2500 2500 3.9 7.2 1.8 12.9
RAD-3000 3000 4.6 7.6 1.8 12.9
RAD-4000 4000 5.1 9.3 2 16.4
RAD-6000 6000 8.2 11.8 2 23
8000 10.6 12.8
2 25.4