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Syvab - Himmerfjärdsverket

Syvab - Himmerfjärdsverket. Sweden's fifth largest wastewater treatment plant (WWTP) The WWTP has been in operation since 1974 The treatment plant is located 40 km south of Stockholm

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Syvab - Himmerfjärdsverket

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  1. Syvab - Himmerfjärdsverket • Sweden's fifth largest wastewater treatment plant (WWTP) • The WWTP has been in operation since 1974 • The treatment plant is located 40 km south of Stockholm • Our owners are the municipalities Botkyrka, Nykvarn and Salem, Stockholm Vatten VA AB and Telge i Södertälje AB • 350 000 people are connected to the plant • We treat 120 000 000 liters of water every day(= 1300 liter water per second = 6,5 bathtubs/second)

  2. The tunnel system • The water flows through a 55 km long tunnel to the plant • The water flows through six municipalities(Stockholm, Huddinge, Botkyrka, Salem, Södertälje and Nykvarn) • The water flows by gravity • The tunnel slope is 1 meter / kilometer (1 ‰) • It takes eight hours for the water to reach the treatment plant

  3. The Himmerfjärden WWTP 3. Filtration 2. Biological • Mechanical och chemical

  4. We care about our environmentWe produce biogas and biosolids The biogas is used for: • Heat up our offices and digesters • Gas engine for blowers • Sludge dryer • Vehicle fuel The biosolids areused for: • Forest fertilizer • Agriculture • Golf courses • Land restoration • Bio fule

  5. Syvab

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