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innovative water
infrastructure for Chongming Island |
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In the frame of ecobuild
Shanghai
2006, a major Sino-German cooperation
project for the promotion of ecological
building, the Hamburg-Public-Sewage-Company
(HSE) has developed an innovative circular
economy infrastructure concept for new
housing areas integrated in the farmland
of DongTan, on Shanghai-Chongming-Island.
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SIIC-Dongtan-Investment-and-Development,
developer of Dongtan, and ecobuild
representatives signed an agreement
on January 13th for the implementation
of HSE’s concept within ecobuild.
The aim of the Dongtan project is to
realise a pilot for the showcase of
this innovative technique, which is
meant to be applied to urban areas in
the future. |
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Circular economy infrastructure is
based on material flow management theory:
the conventional waste water disposal
system, where all sewage goes into one
canalisation, will be replaced a system
enabling separation of wastewater. Greywater
(used water without toilet water) and
blackwater (concentrated toilet water),
are collected, treated and recycled
separately. This system is coupled with
a biomass/biogas system for treatment
of blackwater and constructed wetlands
for grey water.
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This infrastructure offers the following
benefits: |
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reduce overall
water consumption (after purification,
grey water can be reused either
within the housing area, or even
more efficiently for irrigation
in agriculture),
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balance energy
needs (production of renewable
energy when supplementary biomass
such as energy plants and organic
waste are added to the biogas-system),
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production
of additional agricultural fertiliser,
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much lower
environmental impact than conventional
systems (emissions of greenhouse
gases and eutrophic substances
are reduced to a minimum)
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This circular economy infrastructure
concept is an important contribution
to the sustainable development of growing
cities, adaptable to different climate
zones. HSE’s objective is to close
the loop of material flow for more resource
efficiency. |
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HSE, part of the Hamburg-Water-Group,
the biggest public Water and Wastewater
Company in Germany, is closely cooperating
with the Tongji-University, College
of Environmental Science and Engineering.
HSE is in Germany responsible for public
water, waste- and storm water infrastructure
and service operation in the metropolitan
region of Hamburg. |
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More information: please contact
Mr. Ulf Raklemann, HSE ulf.rakelmann@hhse.de |
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