Evac Dehydro: A smarter way to manage waste onboard
Vessels requiring lower waste handling capacity have long faced a dilemma when it comes to sustainably manage waste onboard. Traditional systems are often too bulky, expensive, or inefficient for ships producing less than a few thousand kilograms of waste per day, which presents a challenge for vessel owners and operators seeking a more sustainable option.
To meet this needs, Evac Group has launched Dehydro, a compact, sustainable onboard waste management solution for vessels of all sizes. Designed to meet the needs of various operations, this high-performance dehydration system significantly reduces the volume of wet organic waste by converting it into a sterile, dry powder. The result is a space-saving, cost-effective, and environmentally friendly approach that eliminates the need for additional treatment, as well as making offloading easier.
What makes Dehydro essential for onboard waste management
With maritime waste management regulations becoming increasingly strict, practices once considered routine are now subject to far greater scrutiny and control. For vessels with lower POB onboard, this shift has revealed a gap in the lack of suitable waste disposal and treatment options facing owners and operators. Traditional waste management systems are often too large and expensive, while manual offloading or temporary storage of wet waste takes up valuable onboard space.
Evac’s Dehydro has been designed to close the gap in sustainable waste management. It reduces waste volume by up to 83% through advanced dehydration technology, converting wet organic waste into a sterile, dry powder that is easy to store and offload. By eliminating the need for additional treatment, it simplifies onboard logistics while cutting down on offloading and transport costs.
Compact and space-efficient, the system is ideal for vessels generating between 50 and 1,000 kg of wet waste per day, which is a scale that has long lacked practical, sustainable solutions. With maritime regulations increasingly shifting toward zero-discharge standards, now is the ideal time to adopt onboard treatment technologies that reduce environmental impact without compromising operational efficiency.
The Evac Dehydro system uses a high-temperature drying unit that removes moisture from organic waste. This sterile powder can be safely stored onboard and later repurposed — for instance, as animal feed, fertiliser, or biomass fuel, depending on available local facilities and local regulations.
An improved solution to waste management
Currently, onboard waste management solutions vary in effectiveness and impact. Some ships still discharge untreated waste where allowed, posing environmental concerns. Others rely on biodigesters, which produce a nutrient-rich liquid byproduct that can be challenging to treat and may also result in compliance issues.
Compared to these methods, Dehydro provides a cleaner alternative by requiring no polymers or additives, producing no harmful liquid byproducts, and eliminating the need for external treatment before offloading. Instead, it delivers a self-contained, compliant, and efficient waste loop that also aligns with increasingly strict global and regional regulations on waste treatment, storage and disposal.
Evac’s sustainable solution to waste management
Designed for flexibility, Evac Dehydro can be installed indoors or outdoors. The system operates efficiently in temperatures ranging from 0°C to 40°C, with acceptable performance up to 50°C, ensuring reliable dehydration even in challenging climates.
As the latest addition to Evac’s market-leading portfolio – a portfolio protected by over 150 patents and present in 70 countries – Dehydro compliments our extensive waste and water management technologies. It offers a practical solution for ship operators looking to support sustainable practices. Compact, effective, and environmentally responsible, Dehydro helps turn the challenge of waste management into an opportunity for compliance and operational improvement.
