Marine Scrubber
Water Treatment

Market-proven scrubber water treatment for exhaust gas cleaning systems


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Marine Scrubber Water Treatment Liqtech (1)

LiqTech & The IMO Sulphur Cap

At LiqTech, we have long-term experience working with top marine water scrubber manufacturers, shipowners, and shipyards, and we have a market-proven solution to obtain constant IMO compliance.

In January 2020, the International Maritime Organization (IMO) implemented a new lower cap on sulfur emissions for international shipping to obtain a cleaner shipping industry. Inside the Emission Control Areas (ECA), the regulations are even stricter. This sets new standards for how ships should treat their scrubber wastewater.

We are here to remove unburned fuel oil, soot particles, ash, and heavy metals from water and take an active role in reducing world pollution. We care about the future, and at the same time, about growth. We see it as our mission to enable companies to grow stronger while meeting tomorrow's environmental demands. That means the world to us.

LiqTech has developed a compact and efficient water scrubber treatment system for both closed-loop and hybrid scrubbers that outperforms discharge limits regulated by the IMO. Working with market leaders for several years, we have successfully installed retrofit and new-build scrubber water treatment systems on hundreds of vessels.

  • Market-proven solution
  • Ideal for retrofit installation
  • Future-proof solution
  • Selected by market leaders
  • Guaranteed compliance with IMO discharge regulations
  • Remote service and support 24/7 – anywhere in the world
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Proven Solution

1 years of experience in the filtration industry
230 marine scrubber wastewater systems installed worldwide

Selected by Market Leaders Worldwide

Hundreds of vessels are already compliant with future environmental requirements.

LiqTech's marine scrubber wastewater systems are installed on hundreds of vessels worldwide. Our industry leaders' references include vessels such as cruise ships, Ro-Ro passenger ships, Ro-Ro cargo ships, container ships, bulk carriers, tanker ships, etc.

The water scrubber treatment solution from LiqTech secures compliance with environmental requirements and reduces scrubber sludge's handling costs. We have experience with all types of alkali used (Mg-compounds, NaOH, Na₂CO₃).

  1. Marine Scrubber Water Treatment Container Ship - LiqTech
  2. Scrubber Water Treatment - LiqTech
  3. Marine Scrubber Wastewater System Container Ship - LiqTech
  4. LiqTech Marine Scrubber Wastewater Reference - Cruise ship
  5. LiqTech Marine Scrubber Water Treatment Reference - Cruise Ship
  6. Cruise Ship Marine Scrubber Wastewater Reference - LiqTech

Water Scrubber Treatment with Superior Properties

For more than two decades, we have manufactured filtration products of recrystallized silicon carbide (SiC). Our silicon carbide membrane technology and scrubber wastewater treatment systems will provide unique advantages for your business.

Benefits of the LiqTech Systems

  • Constant IMO-compliance
  • Minimal sludge production and handling cost in combination with dewatering
  • Most robust membrane technology providing system durability
  • Mechanical separation, providing consistently high water quality
  • Highest recovery rate in the market
  • Capable of heavy metal removal
  • Fully automated solution
  • Flexible system for different sailing profiles
  • Modular system design for flexible installation and capacity upgrades
  • Low-pressure system with low energy consumption

Benefits of SiC Membrane Technology

  • Unmatched flux
    SiC membranes have the highest flux of any membrane
  • Small footprint
    One of the smallest footprints for complete systems in the market
  • Excellent thermal properties
    Our SiC membranes can withstand temperatures of 800°C
  • Unmatched performance
    High performance, low total cost of ownership and low maintenance
  • Chemically inert
    Our systems can withstand the full pH spectrum of 0-14
  • Efficient cleaning
    Any chemical can be used for cleaning, resulting in very low membrane fouling
  • Robustness
    SiC is the second hardest material in the world next to diamonds
  • Long service life - less maintenance
    Fully automated system with less downtime and stable operation
Marine Scrubber Wastewater Filtration Process Liqtech

Filtration Process for Marine Water Scrubbers

Our scrubber water treatment solution will treat the water from the scrubber tower, and then it is sent back to the scrubber tower for reuse. This enables the water scrubber to run in a closed-loop with no wastewater discharged overboard. Instead, the particles are filtered and concentrated in the silicon carbide membranes and further dewatered in a filter press, providing bulk discharge of dry waste to a waste handling station while in port.

Liqtech Modular System Design Industrial Wastewater

Modular Design for Flexible Installation

With LiqTech’s innovative modular design, installing the marine scrubber wastewater solution on retrofits and new builds is easy. The modular and flexible water scrubber solution makes it possible to further increase capacity after installation if needed.

  • Separation of filter skid for ease of installation
  • Easy to upgrade capacity
  • Low maintenance

Do you need more information?

If you need more information about our marine scrubber water treatment, please do not hesitate to contact us.

We are ready to help you