Cleantech
Environmental requirements are becoming more stringent. Regulations are tightening. And shipowners and operators are expected to act — not just plan. Hans Buch is your experienced partner when it comes to turning Evac’s cleantech solutions from catalogue concepts into on-board reality.
Cleantech for the maritime industry
Hans Buch is an authorised distributor of Evac’s solutions throughout Scandinavia. This means we do more than simply supply equipment — we know the systems inside out. We know how they perform in operation, how to size them correctly for your vessel, and how best to integrate them with existing on-board systems.
This expertise makes a real difference when you need to:
- Choose the right solution for your vessel type, capacity and area of operation
- Navigate the requirements of IMO, MARPOL and classification societies
- Avoid making the wrong choices that cost time and money during installation and commissioning
- Future-proof your investment as environmental legislation becomes more stringent
Innovation in sustainable water and waste management
Evac is the world’s leading supplier of integrated water and waste management technologies for the maritime industry. With over 40 years of experience and more than 150 patents, Evac has systematically developed solutions that reduce environmental impact, save resources and help shipowners and operators meet — and exceed — international environmental requirements.
Evac’s cleantech solutions cover the entire on-board cycle:
- Freshwater production – efficient, energy-saving generation of drinking water and process water at sea
- Vacuum systems – vacuum toilets save up to 90 % water compared with conventional systems
- Wastewater treatment – advanced biological and chemical treatment for safe discharge in compliance with MARPOL and IMO standards
- Wet waste (Wet Waste Treatment) – Evac HydroTreat® converts organic waste into environmentally safe biochar and reduces CO₂ emissions by over 60 %
- Dry waste (Dry Waste Treatment) – compaction, glass crushing and briquetting for safe, space-saving handling of recyclable waste
- Corrosion protection (ICCP) – cathodic protection of hull structures
- Marine Growth Prevention (MGPS) – prevention of biofouling in pipework
Evac HydroTreat® – a breakthrough for the circular economy
Evac HydroTreat® is a groundbreaking technology that treats all organic waste on board — including biosludge, food waste and faecal matter — and converts it into biochar that can be handled safely and disposed of in an environmentally responsible way.
The results are significant:
- Over 60 % reduction in CO₂ emissions from waste management
- No discharge into the sea — all waste is treated on board
- Supports the circular economy and future regulatory requirements
Total concept – an integrated cleantech solution
Evac Total Concept is more than individual components. It is a comprehensive solution in which fresh water production, vacuum systems, wastewater treatment and waste management are planned and designed as one integrated system — with a particular focus on energy and material efficiency.
This means fewer interfaces, lower operating costs and a proven reduction in environmental impact.
Turnkey solutions for your entire fleet
Hans Buch offers turnkey delivery of Evac systems — from initial consultation to complete installation and commissioning. This means one point of contact, one accountable partner and one complete solution, whether for a single vessel or an entire fleet.
We handle:
- Fleet-wide delivery — consistent solutions across vessels with economies of scale and standardised maintenance
- Needs assessment and technical advice — we identify requirements, operating conditions and regulatory obligations
- System design and sizing — Evac Total Concept ensures that all subsystems work together optimally
- Project management and coordination — we manage the process and keep things moving forward
- Documentation and certification — complete delivery with the documentation required by classification societies and authorities
Contact us – EN
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