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How can hamabi eco city become a global model?

發布時間:2020-11-02發布者:點擊次數:513

Hammarby sjstad, built in 1996, is a Swedish national ecological demonstration area covering an area of 2.04 million square meters. Hamabi eco city is a global model of intensive utilization of energy, garbage, water resources and sewage treatment.




Government led, multi sector coordinated promotion




"Who will pay for the huge construction funds? Is it a" face project "or" fame and wealth " This is the most frequently asked question by experts and government officials from all over the world when they come to hamabi eco city.




The answer is that the government dominates the control panel, the multi-functional departments coordinate to promote, and the private sector makes profits.




At the beginning of the construction of hamabi eco city, the government had a clear goal: the environmental impact of the demonstration area must be further reduced by half than the normal level. After the general route has been determined, the schemes of various functional departments have entered into the market one after another - various "low-carbon solutions" from urban management departments, universities and research institutions, investment and construction units, infrastructure operation companies and product suppliers have come in succession.




At the same time, the government has adopted a strong leading control panel, actively looking for enterprises willing to carry out technological and business model innovation according to the project objectives in the process of the project, and jointly form countermeasures. "Only in this way, we can avoid some enterprises taking the opportunity of demonstration projects to emphasize some technologies or products unilaterally, which will make the projects lose their real goals," explained the local project leader.




95% waste recycling provides 50% of energy supply




In hamabi eco city, the recycling rate of domestic waste and sewage reached 95%. 50% of the city's energy supply comes from 95% waste conversion and resource recycling.




How is it done here? It is the municipal facilities operation enterprises that are in charge of "rejuvenating the hand". They do not need government subsidies and are completely responsible for their own profits and losses. These private enterprises engaged in municipal waste incineration, sewage treatment and biogas production collect treatment fees on the one hand and make profits through the sale of energy on the other hand, especially waste incineration combined heat and power supply, sewage source heat pump heating and cooling, biogas purification and supply to public transport.




Take the recycling of domestic waste as an example. In the local residents downstairs, there are different colors of trash can, the back of which is connected with a huge underground garbage pipe network system. Each bin is also the entrance to the underground recycling pipeline.




The design of the whole garbage recovery system follows a basic principle, namely "source sorting of nearby buildings", "recycling room of nearby blocks" and "environmental protection station of nearby areas". On this basis, each garbage can is installed with a garbage collection sensing system. When there is a certain amount of garbage at the inlet of the recycling pipeline, the sensing system will send a signal to the central control system of the whole recycling system. The central system will immediately open the baffle of the pipeline isolation area, and all the garbage will enter the underground garbage collection pipeline, and finally be pumped to the garbage treatment in the suburbs of the city Factory.




At the end of the underground garbage recovery system, that is, the garbage treatment plant in the suburbs, its function is not only simple garbage sorting, but also its other important mission is energy recycling. For example, electric power plants are combined with underground waste recovery systems and sewage treatment systems to produce heat and electricity. The waste residue generated in the production process can be used to produce biofuels for urban public transport and new energy vehicles in hamabi.




Residents are the main driving force of community self-renewal




Allan Larsson, nearly 80, sees himself as an ordinary resident of hamabi eco city. What is unusual is that he is a former Swedish parliament member and finance minister who was born as a journalist and served as the director general of the European Commission for many years. Although he has retired, he is still actively promoting the hamabi eco city 2.0 project as a community resident.




The project includes a series of specific objectives. The core of the project is to build a smart community through community participation, maintain and enhance the ecological and environmental protection characteristics of the community, and improve the building energy conservation, new technology application and environmental protection lifestyle.




Allan Larsson and several other community activists, on the one hand, as members of the Federation of community associations, safeguard the long-term interests of the community and promote community residents' participation; on the other hand, they contact enterprises willing to jointly innovate and develop; at the same time, they continue to strengthen the hamabi ecological demonstration zone as an international exchange platform for the Swedish government.




Another lake city resident who is keen to promote sustainable development is Gran and Malin Avalon engquist, the owners of studio SJ vilan. This environmental protection pilot villa has become a forum for community affairs. The host also invited friends from all walks of life to this villa to discuss sustainable life and social development.




Community residents have also created the "Electric City" innovation platform, supported by enterprises and research institutions, to improve the intelligent level of community infrastructure management and use, and to encourage the use of electric vehicles.




In fact, the original site of hamabi eco city was an abandoned industrial area and port, with garbage everywhere, sewage flowing across the land, and the soil was seriously polluted by industrial waste.




After more than 20 years' efforts of Stockholm municipal government, it has been designed as a community with high circulation, low cost and harmonious coexistence with the natural environment. Because of its successful environmental protection concept, the charm of this new community, which has been highly planned and has multiple functions, has been enduring for a long time.




Source: China Environment News


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