Comparison of life cycle assessment methods,application to a wastewater treatment plant

Posted by zhangzhen
File: 
Type: 
article
Comparative: 
yes
Publication year: 
2006
Language: 
English
Code: 
Water-Saving
Quality and sources
Is the study a: 
Detailed LCA
Was a critical review performed?: 
No
Is the study compliant with ISO 14044?: 
No
Sponsor name(s): 
Université de Liège, Laboratory of Industrial Chemistry, Belgium
Sponsor type: 
University
Practitioner(s): 
Hubert Halleux
Practitioner(s): 
Stephane Lassaux
Practitioner(s): 
Albert Germain
Practitioner(s) type: 
Consultant
Summary
Functional unit: 
(pers*yr / m³ water

The study has shown that the building of a wastewater treatment plant was necessary and that an improvement of the performances of the plant would be done by reducing even more the concentrations in pollutants like heavy metals and eutrophying substances in the effluent of the wastewater treatment plant.
LCA is an essential tool for environmental analysis to avoid displacing pollution. It is well developed for the study of energetic systems, where the list of the emitted substances is usually quite short (CO2, CH4, NOX) and the impacts to consider are well known (global warming, photo-oxydant formation, resources).
But when the inventory becomes more complex (heavy metals, eutrophying substances) the limits of the impact assessment methods appear. A convergence in the models of the different methods for carcinogenic effects,ecotoxicity or eutrophication would be necessary.

End of life impact(s): 
Eutrophication


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