A First Iteration of an Eco-efficiency Assessment of Sofia's Urban Water System | Zendy

Irina Ribarova | Zendy; Peyo Stanchev | Zendy; Galina Dimova | Zendy; D. Assimacopoulos | Zendy

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A First Iteration of an Eco-efficiency Assessment of Sofia's Urban Water System

Author(s) -

Irina Ribarova,

Peyo Stanchev,

Galina Dimova,

D. Assimacopoulos

Publication year - 2014

Publication title -

procedia engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.32

H-Index - 74

ISSN - 1877-7058

DOI - 10.1016/j.proeng.2014.02.156

Subject(s) - life cycle assessment , variety (cybernetics) , environmental impact assessment , systems engineering , product (mathematics) , life cycle inventory , computer science , environmental science , engineering , operations research , risk analysis (engineering) , environmental economics , reliability engineering , mathematics , business , production (economics) , economics , ecology , geometry , artificial intelligence , biology , macroeconomics

The recent publication of ISO standard 14045 for eco-efficiency assessment requires a focus on its implementation in a variety of contexts. The ISO standard gives only a general framework; its practical implementation requires a scientific approach. This paper demonstrates how the requirements of the standard were taken into account in an eco-efficiency assessment of technological improvements to Sofia's urban water system. The definition of critical elements - product system, system boundary, system value and environmental performance is discussed. Methods for quantification of the system value and environmental assessment are proposed. Two types of indicators, based on life cycle inventory and life cycle impact assessment, are suggested

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