■ Ballast Water Treatment System (BalClor® BWMS (SUNRUI))

■ During ballasting, Sodium Hypochlorite generated by electrolysis process mix with seawater in ballast main pipe then enter ballast tank

■ During de-ballasting, Sodium Thiosulphate (Na2S2O3) neutralize residual NaClO

■ Automatically back-flushing filter removes bigger planktons and particles from seawater of ballast main pipe

■ Ballast Water Treatment System (BOS® COSCO BLUE OCEAN SHIELD )

  • System Introduction

COSCO Blue Ocean Shield (BOS) ballast water treatment system is designed and manufactured as the requirements of International Convention for the Control and Management of Ship’s Ballast Water and Sediments, 2004, with the aim to prevent, minimize and ultimately eliminate the risks to the environment, human health, property and resources arising from the transfer of harmful aquatic organisms and pathogens through the control and management of ship’s ballast water and sediments.

  • Technology: Mechanical Filter + Medium Pressure UV Disinfection (Physical Technology)
  • Components
    Filter Unit: Negative Pressure Suction Self-Cleaning Filter, removes the organisms and particles greater than 50μm.
    UV Unit: Medium Pressure Disinfection Technology-effectively inactivates the aquatic nuisance species (ANS) and pathogens.
    Control Unit: One-touch operation; Automatic operation, control and monitor.
  • Operation Principle: When ballasting, BOS filter removes the sediments and micro-organisms greater than 50μm. After that ballast water enters the UV reactor, appropriate dose of UV ray is generated in order to inactivate the organisms, such as algae and bacteria in the water. With the completion of above treatment, the ballast water comes to ballast tank.

When de-ballasting, the filter is automatically bypassed, and the ballast water goes directly through the UV Unit, and receives a second UV-treatment, ensuring discharged water in compliance with the convention’s requirements and USCG’s requirements.