Thanks to a large-scale installation of composting and a hundreds of separate sewers, the municipality of Norrtälje has managed to reduce a leakage of nutrients with five tons to the Baltic Sea. These actions have raised the property owner’s interest for Eco-cycle solutions and the municipality has gained a valuable knowledge in eco-cycle adapted water and sewage sytems.
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A vacuum system handles the waste in Östermalm’s food market hall. The waste is transported via pipelines by means of under pressure to a storage unit and later to a biogas installation. With this system, waste is no longer a problem, but a resource.
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The district heating plant in Bålsta supplies Håbo municipality with environmentally-friendly heat and hot water. The plant consists of three boilers: a wood chip boiler, a pellet boiler and an oil-fired boiler, which together represent 80% of the plants total energy production. The remaining 20% are taken from a adjucent gypsum factory, whose waste heat is led to the boiler through pipes.
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Svenska Bostäder have invested over three million Swedish kronor in an installation for geothermal energy and a recycling central. Thanks to the investment, Vällingby Centrum produces nowadays its own energy, which provides the shopping centre with 60 % of its need for heating and 90 % of its need for cooling.
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Vertical Wind has developed a new and exciting wind power technology based on a vertical axis wind turbine with a cable-wound direct driven generator. The turbine does not need a pitch or a yawing mechanism and the direct driven generator eliminates the need of a gearbox. The robust and simple technology with few moving and sensitive parts compared to conventional wind turbines, gives a higher availability and reliability as well as lower cost for maintenance. Furthermore, this type of wind turbine is quieter than its horizontal counterpart.
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A playground in Little Ursvik in Sundbyberg produces its own energy from sun and wind. The energy used for lighting the playground.
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Hammarby Sjöstadsverket in Stockholm, Sweden, was built as part of the Hammarby Sjöstad initiative, with the aim of halving environmental impact by demonstrating new technology and innovative solutions. The facility is now continuing to serve as a development centre for new water treatment technology.
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An artificial wetland was built in the spring of 2006 next to the lake Myrsjön in Nacka. The aim is to use nature’s own mechanisms to clean the polluted storm water from an industrial area, before it runs into the lake Myrsjön.
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Telegrafberget, situated on the northwestern part of Boo on the northern coast of Nacka, is an important landmark in the entrance to Stockholm. The site is characterized by the variation in its topography, reaching from the quay on sea level to a plateau on the top of the mountain with a spectacular view of the entrance to Stockholm.
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Arlanda Airport has managed to reduce its emissions of carbon dioxide with 50 %. A strong contributing factor to the reduced emissions has been the investment in geo energy, which is taken from an underground aquifer.
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A small recycling centre in Huddinge municipality produces biogas using organic waste, which is unique in the Stockholm region. Despite the fact that only a few tons of biogas is produced every year, the plant brings important knowledge for future projects.
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At Svartsjöviken in Ekerö municipality, overgrown meadows have been restored. The grounds, which had a low sustainability, were restored with newly developed aphibious vehicles, light band wagons and stump cutting equipment. Today, the meadows are harvested, which has recreated a valuable biotop. At the same time, a long-term parntnership has been established between the municipality, the farmers, the local residents, landowners and various other associations.
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The district heat plant in Bro produces environmentally friendly power. About ¾ of the installation's total heat production comes from landfill gas from Ragnsell landfill in Högbytorp. The remaining energy is produced by burning vegetable oil.
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Fittjaverket produces heat by firing wood powder. Wood powder is a by-product from forestry industry and the incineration of this product entails no additional input of carbon dioxide to the atmosphere
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The City block Pennfäktaren was once a energy-guzzling building from the 1970’ies, which has been rebuilt and become one of Stockholm's most modern office buildings, with many examples of cleantech installations.
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The major soil remediation projects carried out in Stockholm during the last decade were in many ways unique and resulted in new experiences. Four areas were remediated from contamination, partly with new technology and help from entrepreneurs, who have never worked in Sweden before.
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In Trosa Marina there is a boat-washer, which scrubs off the fouling on boat hulls. Thanks to the boat-washer, the boat-owners do not have to use environmentally-hazardous anti fouling paints anymore.
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The goal for Hammarby Sjöstad in Stockholm, Sweden, was to halve the overall environmental impact compared with if the area had been built in the early 1990s. The goal was not fully attained. But thanks to the ambitious target and integrated planning, this lakeside town has set an international example.
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Both the natural values and economic values have increased in Nykvarn since the municipality restored the mercury-contaminated lake Turingen, The today ineadible fish will in a relatively near future be eadible again.
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In the autumn of 2009, a renovation of Strömkajen in central Stockholm started, which had begun to decay from below and subside. The quay will be equipped with a vacuum system to evacuate the waste from the incoming boats from the Stockholm Archipelago.
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In the northern parts of Bromma, two so called ”passive-houses” are being built. Passive houses are particulary isolated, with an efficient heat recycling system and energy-efficient windows. They need 50% less energy compared to conventional multi-dwelling buildings.
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An installation for production of Liquid Biogas (LBG) is under construction at Loudden in Stockholm. This will be the first large-scale biogas installation in Stockholm, which produces biogas using organic waste.
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Söderenergi invests 250 million Euros in a bio fuel-fired combined heat and power plant (CHP) in Igelsta. The CHP will be able to supply energy to close on 100.000 dwellings, which makes Igelsta to one of the biggest biofuel-fired heat-electric power plants in the world.
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Käppalaverket is one of the world's most efficient water treatment installations, with the entire northern Stockholm as a catchment area. Apart from the fact that the installation treats water for over 500 000 people, it also produces biogas, running 100 busses.
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In Kungsbrohuset, there are several innovative cleantech solutions. Among other things, Kungsbrohuset recovers the excess heat, generated by the commuters at the Stockholm Central Station. Water from Klara Lake is used for cooling the building.
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At Nynäs gård, there is a biogas installation, which is designed for the farm's phosphorus needs. The farm does no longer need to purchase any chemical fertilizers, nor does it need to buy fuel for its vehicles.
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In the district of Hagalund in Solna, trucks with a mobile vacuum technology, collect waste and newspapers. The system is not only easy for the residents, it also improves the waste collector's work environment and reduces the operating costs.
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Thanks to a stationary pneumatic refuse collection system, the garbage doesn’t need to be collected by trucks anymore. Instead, the garbage is transported by air through pipes, where it is compacted in sealed containers. Using a vacuum system instead of an old-fashioned refuse room or waste container does away with problems with unpleasant odours, and nobody needs to come into contact with waste bags or containers.
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Two sewage treatment works in Stockholm are producing biogas from sewage sludge. After having purified the gas, it can be used for both heating and vehicle fuel and in addition creates no net emissions of carbon dioxide. Consequently, the treatment works have reduced their amount of emissions and become energy suppliers. Therefore, sewage sludge is no longer an environmental problem, but an important energy resource.
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At Laduviken, 5 million Swedish kronor is invested in a water park, which will reduce the amount of pollutants entering the lake through storm water. The aim is, among other things, to reduce phosphorus by 25%.
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Säbyverket produces heat by firing bio fuel and wood powder. Wood powder is a by-product from forestry industry and the incineration of this product entails no additional input of carbon dioxide to the atmosphere.
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The introduction of congestion charges in Stockholm was one of the reasons why Stockholm was awarded “European Green Capital 2010”. The introduction has led to reduced traffic with somewhere between 20 and 25% and that air quality has been improved, according to the Road Administration.
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The energy company Norrenergi has been commissioned to build a biofuel-fired district heat plant in northern Kymlinge. The installation will secure the supply of electricity and heat in growing areas within the municipalities of Solna and Sundbyberg. Furthermore, thanks to the plant, the municipalities can count with reduced emissions of carbon dioxide by 15 %, which is in line with the Parliament’s fixed objective for reduced emissions.
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Högdalenverket, which is one of Europe’s most modern installations for energy extracted from waste, produces electricity and heat from Stockholm’s combustible household waste and industry waste. Högdalenverket is an important component in the district heating network of southern Stockholm.
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Since 2003 the waste water from the town of Trosa (about 4500 citizens) has been treated in artificial wetlands, after the basic treatment in the sewage plant. Thanks to the wetlands the Trosa river and the town bay have been spared from eutrophicating substances (plant nutrients) as well as contagious substances (pathogenes). Besides the value of purifying the water, the wetlands are a popular recreation area. The wetlands are used for education and many study visits are made here. Vagnhärad, the neighbouring town with about 4500 citizens, has a similar area of artificial wetlands since 2001.
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When the new football field at Katrineholms Sports center was constructed, heating coils underneath the pitch were installed, which makes its playable even in winter. The heat is collected from an underground energy storage, where waste heat from the artificially frozen bandy court’s compressors is stored.
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Yasuragi Hasseludden is a Japanese-inspired spa and conference installation and is environmentally-friendly in many aspects. The most attention-grabbing installation is the ultra filter, which cleans the big pool.
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