IMH News



HYDAC demonstrating their new Ballast water treatment

The problem 
When discharging ballast water, organisms – amongst which are bacteria, plant and animal plankton, viruses but also small fish, crustaceans or jellyfish – are released at the harbors. The Ballast Water Convention passed by International Maritime Organization (IMO) in February 2004 in London has decreed that from 2009, ballast water in ships must be treated.


  • Filtration of ballast water
    • Type:
      Automatic back-flushing Filter RF3
      AutoFilt® RFBW
      AutoFilt® TwistFlow Strainer ATF
      Also ATF ® Skids

Water treatment


  • FPSO (Floating Production Storage     and Offloading). Pre-filter to protect the membrane
    • Type:
      Automatic back-flushing filter AutoFilt®RF3-7
      ASME VIII, Div.1
      Brazilian Reg. No-13
      Third party: ABS
      NACE Coating Inspector
      Customer Approvals End customer Petrobras
  • To improve the cleanliness of PRODUCED WATER! Operated at 65°C     (149°F) before being back-flushed into the sea
  • PRODUCED WATER is a mixture of seawater, sand and oil
  • The oil content should be lower than 30 ppm
    • Type: 1x RF3-4 in stainless steel ATEX Zone 1, EEx d e IIA T3 (II 2 G/D EEx d e IIA T3), flow  800 m3/h (3.522 gpm)