Why we are
Producing district heat and electricity through waste incineration is an efficient and climate-sound solution for waste that cannot be recycled. However, incineration of waste generates flue gas waste; fly ash containing heavy metals and chlorides and a contaminated acid. Today the hazardous fly ash is transported to specific landfill sites, especially in closed mines, according to the ”hide and forget” philosophy. This is not sustainable nor in line with a circular green community.
HaloSep offers a unique and sustainable solution managing all the issues of fly ash. The process recovers salt and metals as well as it reduces the landfill volume. HaloSep provides an on-plant solution that can be built up locally at a Waste to Energy plant. It can also
be placed at a site where fly ash from several smaller plants is consolidated. Thereby, HaloSep will eliminate both cost and emissions related to long-range transportation. We now have the opportunity to build for a more sustainable Waste to Energy industry!
Our value proposition
HaloSep enables a sustainable solution for WtE plants to turn its hazardous waste into usable material to be returned to society which is the definition of a Circular Economy.

Reduces or eliminates landfill and enables recovery of salt and metals.

Converts hazardous waste to useful resources.

Experience and competence
that creates ease of mind.

Long range transportation costs and emissions are eliminated.

Commercially ready for market entry.

On-site WtE plant consolidation of fly ash.
Our contribution to circularity
The stabilized fly ash is a mineral fraction that can be used for construction purposes. The metal fraction will be used as feedstock for zinc smelters. The salt water can be used as road salt or other industrial use. By using a local treatment and recycling solution, long distance transport and export of hazardous waste is avoided.

Our story

-2010 HaloSep originates from Stena Metall’s R&D department with Erik Rasmussen as the inventor. He saw the need for WtE plants to responsibly mange the fly ash that is formed when waste is incinerated to generate electricity and district heating. The fly ash is currently treated as hazardous waste and landfilled at special landfills. This often means long transports and costly handling that is far from the circular economy that society strives for.
2016-2020 With HaloSep technology, the ash is purified, and the result is salt, recycled metals and treated fly ash. A full-scale plant is ready at the large incineration plant Vestforbrænding in Copenhagen. The facility is a project run in collaboration with Vestforbrænding, with funding from EU Life and is therefore referred to as Life HaloSep.
2020 HaloSep AB is founded as a separate company to drive industrialization and commercialization of the HaloSep process. The establishment of a development plant in production size is the stepping stone to offer a sustainable solution for WtE plants all over the globe.
Our Team
We are the team at HaloSep AB.

Staffan Svensson
President
Staffan has over 35 years of experience from leading large businesses in a global environment in the aerospace business. He has been responsible for both green field establishments, business growth, technology sales and business restructuring, all in an international context.

Åsa Sörelind
Director Finance, Strategy and Marketing
Åsa joined HaloSep with a solid background from business and financial management in the industrial sector. She brings experience from global business management and aftermarket sectors in the mining and automotive industry as well as financial planning from the international logistics business.

Henrik Jilvero
Engineering Director
Henrik brings experience from the Stena Metall R&D function where he led several research projects related to chemical and automated recycling over the last six years. He has also been deeply involved in the development of the HaloSep process. Prior to joining Stena Metall, Henrik completed his doctoral degree in the field of Carbon Capture at Chalmers University of Technology.

Julia Hansson Björck
Product Engineer
Julia has a background as a process engineer, mainly focusing on process design within the pharmaceutical industry and brings an extensive experience from high demand national and international projects. She has been a central project member from initial design to final commissioning of process plants. Julia comes with an education in Chemical Engineering from Chalmers University of Technology, with a Master’s degree in sustainable energy systems

Marcus Modin
Project Director
Marcus has a background as a marine engineer, but also a long experience as a development engineer within the energy industry with specialization in burner and flu gas cleaning systems. He has also been leading a start-up business for aftermarket service of industrial systems.

Daniel Holm
Sales and Commercial Director
Daniel has extensive experience in various business sectors including Cleantech, Medtech and process industry, where he has held both commercial, technical and leadership roles. Before joining HaloSep, he co-founded and lead a startup with proprietary water treatment technology where he successfully brought the product and organization from prototype to commercial stage. Daniel holds a MSc in Chemical Engineering and an MBA from Chalmers University of Technology.

Ulf Börner
Technical Project Manager
Ulf comes with 25 years of experience from the chemical process industry where he has managed process development and innovation projects, mainly within the paint industry. His background is chemical process engineering with an extensive experience from problem solving tools as well as change and risk management with focus on safety. In addition, Ulf is a trained Lean 6 Sigma project leader and has a broad experience in managing advanced laboratory organizations. He also brings a deep knowledge in quality assurance and operating management systems.
HaloSep PORT
Plant for Optimization, Research and Technology
A HaloSep development plant is to be located at Skarvik energy port Gothenburg, Sweden.
It is close to Stena Metall R&D for efficient technology and research development work.
- Optimize the HaloSep process technology
- De-risk and demonstrate customer projects
- Develop the technology for additional markets
- Develop technologies for circularity
Contact us
Please contact us if you would like to know about our process or how we can help your company.


Postal adress
HaloSep AB
Box 4088
400 40 Gothenburg
Sweden
+46 10 445 0000
Visiting adress
HaloSep AB
Fiskhamnsgatan 8B
414 58 Gothenburg
Sweden
+46 10 445 0000
Invoicing adress
HaloSep AB
PG1665
737 84 Fagersta
Sweden
Organization number: 559197-5478
VAT number: SE559197547801
invoices.halosep@stenametall.se
+46 10 445 0000
HaloSep Development plant PORT
Brännoljegatan 2
418 34 Gothenburg
Sweden