Wärtsilä Hamworthy Membrane BioReactor Systems

Wärtsilä Hamworthy MBR technology is based on biological degradation and membrane separation and allows for the treatment of grey and black water to satisfy the most stringent standards.

The process produces the highest quality discharge without requiring any addition or generation of chemicals that are hazardous to the environment or ship operation.

Effluent quality tests conducted by the US National Sanitary Foundation on Wärtsilä Hamworthy’s MBR produced results exceeding the most stringent future legislative pollutant standards envisaged. The technology also achieved outstanding performance in Alaska under the scrutiny of the local authority, USCG and USEPA studies over the past seasons.

We also supply smaller, more compact versions of our MBR systems. Wärtsilä Hamworthy miniMBR’s are ideal for use on smaller cruise and naval vessels, plus ferries with up to a 200 complement, as well as FPSOs and accommodation platforms.


    • Crown Princess
      Wärtsilä was contracted by Princess Cruises to retrofit its 113,000 GT cruise ship with 3 x Membrane BioReactor (MBR) plants. The ship holds 4,620 people on-board and was originally built in 2006. It sails mainly in US waters.

      Crown Princess

    • HMS Daring
      The HMS Daring, commissioned in 2009, is the first of six vessels of the new Type 45 class. Each Type 45 Destroyer has an IEP (Integrated Electric Propulsion) system consisting of two gas turbine alternators and two Wärtsilä 12V200 diesel alternators. (photo courtesy of BVT)

      HMS Daring

    • HMS Queen Elizabeth
      The HMS Queen Elizabeth is the largest ship ever built for the Royal Navy. The prime movers selected for the generating sets are two 12-cylinder and two 16-cylinder Wärtsilä 38 engines for each ship. (photo courtesy of BVT)

      HMS Queen Elizabeth

    • Queen Mary II
      At the time of her construction in 2003 by Chantiers de l'Atlantique, the Queen Mary II was the longest, widest and tallest passenger ship ever built, as well as the largest. To power this enormous vessel, four Wärtsilä 46 engines with a total output of 67.2 MW were chosen.

      Queen Mary II

    Related press releases

    Related products

    Contact us

    Please fill in the form if you have an enquiry related to WASTE WATER SYSTEMS. All fields are required.
    For spare parts, please e-mail us at poolespares.enquiries@wartsila.com

    Find your local Wärtsilä office here
    © 2017 Wärtsilä