A drop of water framed by a symbol of recycling
RESEARCH PROJECT

Recycling of wastewater for non-potable uses in Sweden

Updated: September 2025

Project overview

Project manager: Gunnar Larsson
Contact: Gunnar Larsson
Funded by: FORMAS

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Short summary

Municipal wastewater treatment plants release large amounts of nutrients (nitrogen and phosphorus) to the Baltic Sea. How can wastewater be reused in order to limit emissions and thereby eutrophication?

The project is part of the Aquaclim research school and aims to find possible uses for wastewater.

A literature review will map quality requirements of water for non-drinking purposes. Case studies will use historical data on water consumption and demand for different qualities of water. The benefits of substituting water of drinking quality with water of lower quality will be evaluated, using a life cycle approach. The potential reduction in society’s demand for water of drinking quality will be estimated.

Utilising reclaimed waste water for energy production – particularly of green H2 – is of potential interest. To assess the technical performance, and identify social and economic benefits and challenges, a literature study, data synthesis, feasibility assessment and multi criteria analyses will be performed.

 

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