Waste Management In The Built Environment
On The Basis Of Decentralization And Integration
Strategies: The ‘urban Metabolism’
Author(s)
A. van Timmeren
Abstract
Ecological and environmental conditions in and around cities are under pressure:
transportation distances grow, protection and qualities diminish, and
infrastructures (including management) get more complex, less robust and less
visible, which result in a decline of sustainable commitment and behaviour of
users. Yet, citizens are concerned that environmental degradation is affecting the
quality of life in their neighbourhood. Resource reduction strategies and
integrated waste management in close collaboration with urban planners,
infrastructure developers, and representatives of key social groups are the basis
to achieve environmental improvement. To do so the option of interconnection
of the most important so called ‘essential flows’, especially waste related flows,
energy, water and nutrients, at scales closer to users is argued to be necessary.
This will be the guideline for urban planning based on the ‘urban metabolism’.
This paper will focus on the options for improving the sustainability of the
urban metabolism by interconnecting these essential flows and thus closing
cycles at lower scale levels within the built-up environment (decentralization).
This will be done from the perspective of the ‘sanitation flows’, consisting of
waste water and solid waste flows in residential urban areas. After a short
introduction on cycles existing sanitation infrastructures and waste management
will be drawn up. Subsequently future developments will be analysed and form
the basis of a new approach to waste in urban residential neighbourhoods. It
promotes sustainable management of the environment and its resources through
a renewed focus on waste flows (mostly ignored resources) in urban
neighbourhoods and local ‘quality-cascading’, together with niche planning to
improve knowledge on the interactions between natural resources, human
activities, waste and environmental impact. The approach is illustrated with two
case studies.
Keywords: decentralized waste management, integration strategies, cycles.
Keywords
decentralized waste management, integration strategies, cycles.
Related Book
Other papers in this volume
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