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Table 1

Assessment of environmental dimension of sustainability

Treatment method IndicatorConventional treatmentOxidation ditchesAeration lagoonsMBR*
Land exploitation 
Air pollution 
Energy consumption 
Pollutants removal 
Toxic substances 
Odor emission 
Nuisance and noise 
Use of chemicals 
Sludge production 
Sludge quality 
Urbanization 
Total score 20 26 20 32 
Treatment method IndicatorConventional treatmentOxidation ditchesAeration lagoonsMBR*
Land exploitation 
Air pollution 
Energy consumption 
Pollutants removal 
Toxic substances 
Odor emission 
Nuisance and noise 
Use of chemicals 
Sludge production 
Sludge quality 
Urbanization 
Total score 20 26 20 32 

*MBR, Membrane Bio-Reactor.

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