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. The regulations are even stricter inside the Emission Control Areas (ECA). This sets new standards for how ships should treat their marine scrubber wastewater.
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).
Our marine scrubber water treatment system will treat the water from the scrubber tower, and then it is sent back to the scrubber tower for reuse. This enables the marine 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’s innovative modular design makes installing the marine scrubber wastewater system on retrofits and new builds easy. The modular and flexible marine scrubber solution makes it possible to further increase capacity after installation if needed.
At LiqTech, we have everything in-house that is key to our customers because they want to work with filtration experts, and they want to work with a company that knows their technology and equipment in detail.
Based on more than 20 years of experience in the filtration industry, our marine scrubber wastewater system’s main element is our modern silicon carbide (SiC) ceramic membranes. Silicon carbide is the world’s second hardest material, making the membranes robust fitting in rough environments, and entails a long membrane lifetime. LiqTech’s ceramic membranes operate within the ultrafiltration range and can handle up to 800°C. Moreover, the membranes are chemically resistant, which means they can withstand alkaline and acid waters.
Membranes can effectively filter the polluted marine scrubber wash water, making it possible to reuse or filter further for discharge. Additionally, a significant benefit of utilizing membranes is that these generate a much lower amount of effluent than what is typically delivered by a closed-loop marine scrubber. Up to 80-95% of the feed entering the water treatment unit ends up as permeate.
Therefore, membranes protect our environment from pollution and enable us to preserve our scarce water resources.
Our technical sales team is highly experienced and competent engineers with years of scrubber water treatment experience. This enables us to discuss and advise on the best system configuration for any vessel type and size.
Through 20 years of manufacturing water filtration systems and filters, LiqTech process and chemical engineers are expert advisors in choosing the best filtration solution, chemicals, and dosage suited for the application for both fresh and saltwater scrubbers. We provide the most reliable scrubber wastewater treatment systems available on the market.
The LiqTech system is modular, enabling various treatment capacities to match the needed requirements in scrubbing. Our flexible systems meet your needs for different water purity levels, engine sizes, waste treatment and handling, and preferred choice of chemicals (Alkali).
The LiqTech system components may include:
An OEM water scrubber manufacturer may have a unique filtration requirement to better match the scrubber and process, including water polishing. The LiqTech design team is happy to partner with you and optimize the complete closed-loop/hybrid scrubber water treatment system to match your needs.
The LiqTech project management team has successfully delivered on schedule 250+ high-quality marine water scrubber systems to our customers. The individual project managers are given ownership of separate projects, ensuring a dedicated focus on client contacts and their systems. Leading up to factory acceptance test (FAT) and system delivery, or whenever a current status update in the building process is needed, that appointed person will always be available and ready to report to the client representative.
LiqTech will support your systems and your ship for as long as it sails. We support you by:
With our extensive experience collaborating with shipowners, water scrubber manufacturers, shipyards, and installers, your closed-loop or hybrid scrubber wastewater system will be fully supported by experts, meet your specific vessel needs, and meet or exceed compliance requirements.
