Expo Berlin rainwater collection and reuse system turning waste into wealth
Traditionally, the rain is not in terms of wealth for the city, and sometimes because of rain over the formation of waterlogging. However, a project under way in Berlin, Germany, shift the rain, "turning waste into wealth."
Display in the German Pavilion at the Expo this method is through the construction of reservoirs in the river when it rains, use of pipe to flow into the river after the rain collected; rain, the water pump will be accumulated in the water pumped Sewage Treatment Plant for processing. This will not only protect non-polluted river water in the rainy season, collected rainwater can re-use.
Work
River reservoir sewer
Water conservation is an important task of sustainable urban development, which to many city sewer laying challenges. Because of heavy rain, the sewers often overflow of water out of dirty water into the river and thereby causing water pollution. This requires not only adequate underground drainage system capacity, but also the function of environmental protection.
The case of the German Pavilion was built in the river below the surface reservoir, and dam on the outlet connected to the temporary storage during the rainy season out of the dirty water from the sewer, then the rain will collect the dirty water with a water pump into the sewage pumping pipeline for the Sewage Treatment Plant.
Demonstrated by the case of 3D animation can be seen, after the construction of reservoirs, will not have a lot of oil, garbage into the river, the river's self-cleaning ability to guarantee the water quality will not deteriorate.
Beautify the city
Reservoir can be built on the green garden
This case was based on a flow through Berlin's Spree River. Commentator Marcus said that the construction of reservoirs in the river is not the work of all, to make the river look more beautiful, you can also lay green plants in the reservoir at the top, fitness equipment, or rest with tables and chairs. Of course, the trash can not do without, the last bridge to connect the embankment and green.
Animation is also included in this part of the case of the interaction, a lot of visitors in the hands of a reservoir built after the city based on personal preferences, select the above kinds of flowers in it or install swing and chairs and so on. Even more surprising is that the river flows through the city or the natural swimming pools, one by one person wearing a swimming cap, playing in the river chasing.
System Maintenance
Maintenance of clean detachable reservoir
If the reservoir aging or damaged how to do? Commentator Rubin said reservoir is a number of "iron" series spliced into, and if a problem which can be demolished to replace the whole reservoir can be periodically removed for maintenance or cleaning.
Rubin said Beijing if you try this method, remember that in the frozen reservoir before taken out of income is good, when rainfall is no longer clear, "If the water freezes, it will be damaged by frost." He said the river not enough to install a water tank, to be able to connect each outlet on the dam to collect rain water to reach, the purpose of protecting rivers. Berlin, the plan currently being implemented, can be put into use next year.
Clear up doubts
How to collect rainwater recycling?
Rubin said the German museum guide, Berlin introduced rainwater harvesting this program from its own underground drainage system is aging, but Berlin has a relatively comprehensive sewage treatment system, independent of the underground pipe network to transport water to the urban life sewage treatment plant, treated water can be used to form the city of irrigation.
Rubin said the reservoir where rainwater can be collected and then pumped back through the sewer, with delivery to the sewage treatment plant, in addition to irrigation and drought can also be used for industrial production of the water supply, "to do this project not only to protect the city water system from pollution, but also to make full use of water resources. "
Collection system construction cost?
Traditionally, the rain is not in terms of wealth for the city, and sometimes because of rain over the formation of waterlogging. However, a project under way in Berlin, Germany, shift the water, "waste to treasure."
Display in the German Pavilion at the Expo this method is through the construction of reservoirs in the river when it rains, use of pipe to flow into the river after the rain collected; rain, the water pump will be accumulated in the water pumped sewage treatment plant for processing. This will not only protect the river during the rainy season is not tainted, collected rainwater can re-use.
Work
River reservoir sewer
Water conservation is an important task of sustainable urban development, which to many city sewer laying challenges. Because of heavy rain, the sewers often overflow of water out of dirty water into the river and thereby causing water pollution. This requires not only the underground drainage system has sufficient capacity, but also the function of environmental protection.
The case of the German Pavilion, built in the river below the surface reservoir, and dam on the outlet connected to the temporary storage during the rainy season out of the dirty water from the sewer, then the rain will collect the dirty water with a water pump into the sewage pumping pipeline for the Sewage Treatment Plant.
Demonstrated by the case of 3D animation can be seen, after the construction of reservoirs, will not have a lot of oil, garbage into the river, the river's self-cleaning ability to guarantee the water quality will not deteriorate.
Beautify the city
Reservoir can be built on the green garden
This case was based on a flow through Berlin's Spree River. Commentator Marcus said that the construction of reservoirs in the river is not the work of all, to make the river look more beautiful, you can also lay green plants in the tank top, fitness equipment, or rest with tables and chairs. Of course, the trash can not be missing, the last bridge to connect the embankment and green.
Animation is also included in this part of the case of the interaction, a lot of visitors in the hands of a reservoir built after the city based on personal preferences, select the above kinds of flowers in it or install swing and chairs and so on. Even more surprising is that the river flows through the city or the natural swimming pools, one by one wearing a cap who, in the river chasing play.
System Maintenance
Maintenance of clean detachable reservoir
If the reservoir aging or damaged how to do? Commentator Rubin said reservoir is a number of "iron" series spliced into, and if a problem which can be demolished to replace the whole reservoir can be removed periodically to carry out maintenance or cleaning.
Rubin said Beijing if you try this method, remember that before the reservoir in frozen take out of a good income, when rainfall is also not clear "if the water freezes, it will be damaged by frost." He said the river install a water tank is not enough to be able to connect each outlet on the dam to collect rainwater to protect the river's purpose. Berlin is currently implementing this program can be put into use next year.
Clear up doubts
How to collect rainwater recycling?
Rubin said the German museum guide, Berlin introduced rainwater harvesting this program from its own underground drainage system is aging, but Berlin has a relatively comprehensive sewage treatment system, independent of the underground pipe network to transport water to the urban life sewage treatment plant, treated water can be used to form the city of irrigation.
Rubin said the reservoir where rainwater can be collected and then pumped back through the sewer, with delivery to the sewage treatment plant, in addition to irrigation and drought can also be used for industrial production of the water supply, "to do this project not only to protect the city water system from pollution, but also to make full use of water resources. "
Collection system construction cost?
Rubin said that the construction of reservoirs do not need high technology content and materials is a common metal, so the main inputs in the economy.
"To make the river flows through the city from pollution, the river should be connected to the outlet of each office and are equipped with tanks." He said, the construction of the upper reservoir and the green environment, required a large investment, but able to return for future savings.
Rubin said that if there is no reservoir, river clean-up costs each year is a big number, but the resulting waste water and other costs resulting from investment is also high, so to install city water system, though not once and for all, but also economic affordable way.
Reservoir is intelligent work?
Although the reservoir without someone to look after, but not smart to run, but connected devices using a simple principle. Rubin said the reservoir does not need 24-hour working, high rainfall sewage when it Moritsugu, wait till it stops the water when it is transported to the sewage system, "regular maintenance and repair will require manual operation."
Rubin introduced, such a storage system of a rainy season rain can collect a lot of, "If the city's water surface and vegetation features are very strong, then the city's water resources will be abundant." And in this water system the two ends of the road and the river will also benefit.
Beijing practice
Beijing most of the rainwater directly into the river
Yesterday, Deputy Director of Beijing Municipal Water Authority water Tianyou Li said that Beijing's water being taken by means of more reservoirs and rivers, while the storage device through the city very small amount of water stored.
Small amount of rainwater harvesting in Beijing urban area
Tianyou Li said Beijing had a year most of the water to flow downstream along the river, the only water storage capacity is achieved through the reservoir, "mainly the Miyun Reservoir and Guanting." She said, urban areas although the quantity of rainwater harvesting within no specific data, but the equipment functions in accordance with existing terms, this part of the small number, although some river water storage dam will be located, but a long time, the water quality will change.
Tianyou Li said that Beijing is a city short of water, a long time has always attached importance to the collection and protection of water resources, but never considered the construction of reservoirs in the river channels, "If the river in the city where the construction of a concrete pond for water storage , the cost is too high. "She said that the annual urban roads during the rainy season the rain will flow into the river along the water pipes, roads and often formed after the first rain washed the dirty water, also affect river water quality. She said that Beijing on the stormwater drainage system reform has been implemented for many years, but the concept of rainwater harvesting does not lead to drainage water from the concept of change was still room.
The situation can be demonstrated the feasibility of combining Beijing
The case for the German Pavilion, Tianyou Li analysis, the local population density for the implementation of this program, but the Beijing population density is too large, "Tonghui next to residential areas, difficult to implement." She said that to Germany very interested in the program, if there is a place worth learning can be considered demonstrated the feasibility of combining the actual situation in Beijing.
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