The Evac MBR (Membrane Bioreactor) wastewater treatment system — one of the most advanced marine wastewater solutions available today.

Evac MBR Wastewater Treatment System


The Evac MBR (Membrane Bioreactor) wastewater treatment system — one of the most advanced marine wastewater solutions available today.

Designed for modern vessels operating in environmentally sensitive waters, the Evac MBR system delivers superior effluent quality in a compact, fully automated solution suitable for both newbuild and retrofit projects.


Why the Evac MBR?

The Evac MBR system combines biological treatment with advanced membrane filtration to achieve exceptionally high treatment performance. It is designed to meet and exceed international marine wastewater discharge regulations, including operation in special areas.

Designed for the comprehensive treatment of black (sewage) and grey water, the MBR system delivers high-grade effluent in a single step. While it functions effectively without additional post-treatment, the plant can be configured with an optional nutrient removal module.


Key benefits

  • Completely automatic and easy to maintain and control
  • High-quality disinfected effluent without the use of chemicals
  • Extremely low running costs and minimal energy consumption
  • Completely modular and highly customizable system
  • IMO MEPC.227(64) compliant


Key Advantages


  • Outstanding effluent quality
  • Compact footprint for space-restricted engine rooms
  • Low sludge production
  • Minimal chemical usage
  • Fully automated operation
  • Designed for marine and offshore environments

Membrane bioreactor technology ensures removal of suspended solids, bacteria, and fine particles — producing discharge water of significantly higher quality than conventional marine treatment systems.

How the System Works


  • Black and grey water enter the biological treatment chamber
  • Organic matter is broken down through aeration
  • Membranes filter out remaining solids and microorganisms
  • Treated effluent is safely discharged or reused onboard

This integrated process provides stable, consistent performance even with fluctuating load conditions — ideal for cruise ships, ferries, offshore platforms, and naval vessels.

For technical specifications, project consultation, or a retrofit assessment, contact Marinevac to discuss how the Evac MBR system can support your vessel’s environmental compliance and operational performance.

Applications


  • Cruise ships
  • Passenger ferries
  • Offshore vessels and platforms
  • Superyachts
  • Naval vessels
  • Commercial shipping

Many vessels operating today face increasing environmental compliance requirements. Marinevac specialises in assessing existing wastewater systems and providing tailored retrofit solutions using Evac MBR technology.

Marinevac Evac MBR


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    Our Clients

    M/Y Fountainhead
    M/Y Fountainhead
     RFA British Navy
    RFA British Navy
    M/Y Lady Moura
    M/Y Lady Moura
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    M/Y Anna
    M/Y Volpini II
    M/Y Volpini II
    M/Y Dragonfly
    M/Y Dragonfly
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    M/Y Katara
    M/Y Almax
    M/Y Almax
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    M/Y Limitless
    M/Y Whisper
    M/Y Whisper
    M/Y AV
    M/Y AV
    M/Y Al Salamah
    M/Y Al Salamah

    Marinevac works globally with the world’s largest super yachts, with our head office in Palma de Mallorca, our services are offered in Abu Dhabi, Australia, Croatia, Cyprus, Dubai, France, Germany, Greece, Holland, Italy, Malta, Montenegro and Spain.

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    What our clients say

    Dear David, I hope you are well.

    We are currently working in Astilleros Shipyard, and we have had the pleasure this last few days of working with Marinevac to clean the Grey Water Drain pipework. I just wanted to take a moment to say Thank you for the great service and say what a real pleasure it was to have both lads onboard they are both great Ambassadors for your company and I would highly recommend them to anyone.

    Thank you again for your continued support.

    Chief Engineer Volpini II

    M/Y Volpini II Read more testimonials