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Design and sustainability assessment of scenarios of urban water infrastructure systems

: Hiessl, H.; Walz, R.; Toussaint, D.

Volltext urn:nbn:de:0011-n-738792 (95 KByte PDF)
MD5 Fingerprint: 5319e7bb143ec7ec40a4661d4148dedd
Erstellt am: 20.5.2008

TU Delft, Faculty of Technology and Management:
Critical Infrastructures. CD-ROM : 5th International Conference on Technology Policy and Innovation, June 26-29, 2001 the Netherlands
Utrecht: Lemma, 2002
ISBN: 90-5931-019-5
11 S.
International Conference on Technology Policy and Innovation <5, 2001, Delft>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer ISI ()
urban water infrastructure; sustainability; scenario analysis

The basic concept of today's infrastructure systems for water supply and wastewater treatment dates back more than 100 years. In the paper it is questioned whether the traditional concept, which is characterized by centralized structures, mixing of wastewater streams of various qualities, and open loop design is suitable to fulfill the new requirements in terms of sustainability. The results of an interdisciplinary analysis and assessment performed within the ongoing project AKWA-2100 for two German municipalities as case studies is presented. Using the scenario approach three scenarios are developed with a long-term perspective of 2050 plus to integrate technological, organizational, and institutional innovations into coherent alternative urban water systems with improved eco-efficiency. Since water infrastructure systems strongly affect the sustainability of water resources management the scenarios are evaluated with respect to their sustainability using a total of 44 criteria. In an iterative procedure supported by the Analytic Hierarchy Process the criteria were structured and the individual assessments of the AKWA-2100 research team members were integrate into a joint assessment. Preliminary results indicate that infrastructure scenarios with decentralized components, closed loops of water and other materials and specific treatment for different qualities of wastewater prevail with regard to most of the criteria.