Effective and sustainable wastewater treatment in Aquaculture NAPRAS

Alumichem and esteemed partners have been awarded the (GUDP) grant for the NAPRAS fish farming wastewater treatment project. 

Alumichem is excited to lead this NAPRAS (Efficient N and P removal in RAS aquaculture) project with DTU Aqua, Clean Matter and Drying Matter to continue to drive innovation with wastewater treatment and sludge management of RAS in Aquaculture.

Alumichem A/S has been awarded a major Green Development and Demonstration Program (GUDP) grant for the groundbreaking NAPRAS fish farming wastewater treatment project. Collaborating with esteemed partners DTU Aqua, Clean Matter, and Drying Matter, this initiative aims to revolutionize wastewater treatment in Recirculating Aquaculture Systems (RAS) by developing an efficient and sustainable solution.

Project overview

The NAPRAS project focuses on Effective Nitrogen (N) and Phosphorous (P) removal in RAS fish farming, striving to create a consolidated treatment system. The primary goal is to significantly reduce emissions of N in the forms of nitrate, nitrite, and nitrous oxide (greenhouse gas), along with P, and heavy metal contaminants. The innovative treatment approach combines granulated sludge technology, P precipitation, wet electrochemical removal of heavy metals (such as Zn and Cd), and P bioavailability enrichment, culminating in a drying process that achieves over 95% removal of N and captures over 95% of P into a granular safe fertilizer product.

Collaborative partnership

Alumichem is thrilled to lead this transformative project in collaboration with DTU Aqua, Clean Matter, and Drying Matter. Christian Bang-Møller, Chief Technology Officer at Alumichem, expressed enthusiasm about the collaboration.

“DTU Aqua, Clean Matter, and Drying Matter have been strong partners for us, and we are always happy to execute on innovative and potentially disruptive projects with them. This is an exciting innovation project because we are seeing the environmental discharge limits within RAS become tighter and more complex, and we want to be there to support our current and future clients”.

Christian Bang-Møller, CTO Alumichem

About the partners

Alumichem A/S: Alumichem specializes in developing sustainable water treatment solutions, committed to improving water quality. Their mission is to bring the best Chemistry, Technology, and Knowledge to their clients, ensuring optimal and cost-effective results in wastewater and water treatment processes.

DTU Aqua: The Department of Aquatic Resources (DTU Aqua) at the Technical University of Denmark conducts research, provides advice, and contributes to innovation in the sustainable use and management of aquatic resources.

Clean Matter: Clean Matter is focused on closing the phosphorous cycle in the circular economy, Clean Matter specializes in phosphorous recovery from biomass waste streams, whether from municipal wastewater treatment or aquaculture.

Drying Matter: Drying Matter offers innovative and sustainable sludge drying solutions, converting wastewater sludge into easily manageable granules that bring value back to the environment and the economy.

About GUDP: The Green Development and Demonstration Program (GUDP) supports innovative projects promoting green and economic sustainability in agriculture, fisheries, aquaculture, and the food industry. Administered by the Danish Agency for Agriculture, GUDP is a program under the Ministry of Food, Agriculture, and Fisheries.

For further information about Alumichem or our Research & Innovation projects, please visit Alumichem innovation –>  

More information about Aquaculture effluent treatment solutions –>


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