The municipal wastewater treatment plant of the future – A water reuse facility

The municipality of Simrishamn, together with IVL, has been designing, implementing and evaluating of a full-scale plant for removal of micropollutants such as pharmaceuticals and hormone disturbing substances from municipal wastewater. The evaluation of the implemented three parallel advanced treatment systems shows an added removal effect for pharmaceuticals but also other pollutants. In addition, an evaluation of the reusability of the treated water by microfiltration and ozonation followed by a microbiological filter also showed positive results.

Summary

In 2015 the municipality of Simrishamn, together with IVL decided to start a project for the design, implementation and evaluation of a full-scale plant for removal of micropollutants such as pharmaceuticals and hormone disturbing substances. This ambition came true within a VINNOVA funded programme, Challenge Driven Innovation and by a decision made by the City council for the investment in a full-scale demonstration plant. As the region, including Simrishamn municipality, have been facing water shortage in recent years, it was decided to also evaluate the possibility to reuse the treated water by infiltration to the ground water. For this, an advanced treatment was added to the existing wastewater treatment plant (WWTP).

The evaluation of the implemented three parallel advanced treatment systems consisting of only activated carbon (GAC), ozonation combined with sand filter, and ozonation combined with activated carbon clearly shows an added removal effect for pharmaceuticals but also other pollutants.

Evaluation of the reusability of the treated water also showed positive results. The removal of pharmaceuticals, endocrine disrupting substances and antibiotics was almost 100 % and indicates that the water could be reused, e.g. by recharging to the groundwater.

Coworkers: Lisa Winberg von Friesen, Östen Ekengren, Christian Baresel, Jesper Karlsson, Staffan Filipsson

Year: 2020

Report number: C538

Authors: Christian Baresel, Östen Ekengren, Staffan Filipsson, Jesper Karlsson, Lisa Winberg von Friesen

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