PROJECT STORY
The challenge
Water purification system has insufficient capacity
New wastewater system in Haarlem-Schalkwijk
Arcadis provides design services
The challenge
The wastewater systems of Haarlem-Schalkwijk and Heemstede have reached the end of their technical lifespan. To ensure that the 300,000 inhabitants of the supply area can continue to have clean, safe and healthy water, the wastewater treatment plant in Zwanenburg is being expanded and renovated. Arcadis is one of the partners working on the solution.
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The solution
We are designing a sustainable wastewater system for the water board. The project includes the new construction of two wastewater pumping stations, two pressure pipelines between Haarlem-Schalkwijk and Zwanenburg, and a sludge transport pipeline from the treatment plant in Zwanenburg to the treatment plant in Haarlem-Waarderpolder. During an exploratory phase, we held sessions with stakeholders to define the sustainability measures. These sustainability measures were fleshed out during the design phase and will ultimately reduce the energy consumed by wastewater treatment by 15 percent.
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The impact
On completion of the new wastewater system, Zwanenburg's plant will require no major maintenance for ten years and will satisfy all operational and management requirements. The treatment plant will be capable of processing all the wastewater generated by the cluster, which amounts to around 10,500 cubic meters of wastewater per hour. With this new system, the region's more than 300,000 inhabitants are guaranteed clean and safe water for many years to come.
