The existing wastewater treatment plant was built towards the end of the 1950s, and parts of it have been expanded and rebuilt over the years.
In order for Nora Municipality to grow and additional areas to be connected to the municipal wastewater treatment system, it was decided that a new wastewater treatment plant needed to be built. The new plant will be placed next to the existing one, allowing the old plant to continue to operate until the construction of the new one has been completed.
While the tanks in the old plant are uncovered, the new plant will have a roof that will improve the working environment considerably. As the roof will also reduce problems related to unpleasant odours and noise, the negative impact on the surrounding area will be significantly reduced for the new plant.
ELVA ProcessAutomation AB has entered into a partnering agreement with Samhällsbyggnadsförbundet Bergslagen (‘The Bergslagen Association of Local Authorities’) for the construction of the new wastewater treatment plant. In turn, Hydria Water have signed an agreement with ELVA ProcessAutomation AB to manufacture and deliver plastic chain scrapers, scum pipes, and outlet weirs for five clarifying tanks.
The construction process began with excavation work at the end of 2020, and is projected to be completed in Summer 2022. The machines are currently being manufactured and will shortly be installed by Hydria Water.
In close collaboration with Krüger, we recently manufactured chain scrapers for the Danish utilities company FORS A/S and the Bjergmarken wastewater treatment plant outside Roskilde, Denmark. The old chain scrapers, which were also manufactured by Hydria Water (then VA Teknik), were worn out after 25 long years in operation; the new ones are made of plastic, and have been paired with drive motors with a plastic chain transmission.
– The new scrapers are efficient and require almost no maintenance. Thanks to their low weight a smaller drive motor can be used, which in turn requires less power. This makes the solution more energy-efficient, Søren Juul Hansen, Sales Manager at Krüger, says.
As Krüger is certified according to the UN’s sustainable development goals, all of the involved parties were required to meet high sustainability requirements throughout the replacement process. Thanks to our products being of very high quality and having very long lifespans and our constant focus on the development of components, Hydria Water fulfilled these requirements.
– We have, for example, decreased the amount of plastic used in the wearshoes by 45%, without shortening their lifespan. The product thus contributes to the companies’ sustainability efforts in terms of circular economy, which is of huge importance to us, Ellen Gremo, Marketing Manager at Hydria Water, says.
We want to thank FORS A/S and Krüger for a productive and interesting collaboration which focused on sustainability and energy-efficiency, and produced a successful end result.