CASE Stockholm Vatten och Avfall

Cleaner Sorting, Happier People With DISAB

Find out how Stockholm Vatten och Avfall uses DISAB’s centralized vacuum system to keep their Högdalen sorting plant clean, safe and efficient — removing up to 1,000 kg of waste per week.

Stockholm Vatten och Avfall (SVOA) is responsible for waste management and water services in Sweden’s capital. At their sorting plant in Högdalen, they handle around 660 tons of household waste every day — the equivalent of about 100 garbage trucks. Their mission is clear: recover as much material as possible while producing clean energy and minimizing landfill waste.

The plant sorts plastics, metals, and organic waste (collected in green bags) in a highly automatic process. With so much material moving through the plant every day, keeping the facility clean was a major challenge. Spillage from the many conveyor belts created safety risks and could disrupt the sorting process if not managed properly — and equally important, had a negative impact on the general working environment.

The Challenge

Keeping the plant clean without a vacuum system would have been both time-consuming and required significantly more personnel. As the plant is highly automated, there is limited manpower available for manual cleaning. SVOA needed a faster, more effective way to maintain cleanliness and ensure the sorting process kept running smoothly.

The Solution

SVOA chose DISAB to design and install a tailored centralized vacuum system for their facility. The installation was developed in close cooperation with Stadler, the supplier of the new sorting plant.

The system includes:

  • 1,500 metres of piping
  • Around 150 suction outlets

It is used daily to clean up spillage around the sorting lines, removing approximately 4–5 m³ (roughly 1,000 kg) of waste per week. Material is collected in big-bags that are easy to change — typically once a week.

“We need to clean to maintain a good working environment for our employees and to keep the process running smoothly. A centralized vacuum system is the only efficient way of doing it. Amongst all alternatives, DISAB was the one that moulded exactly to our needs. When you give people the right tools, you keep them happy doing their job — and that is very important to us.”

— Team at Stockholm Vatten och Avfall

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