Odours in sewer networks: nuisance assessment

Area of Science:

• Environmental Science
• Urban Infrastructure Management
• Public Health

Background:

• Odour nuisance from urban sewer networks negatively affects residents' quality of life and public perception of management companies.
• Sewer odours are highly variable and site-specific, posing challenges for effective management.
• Key parameters influencing odour nuisance include hedonic tone, concentration, and intensity.

Purpose of the Study:

• To assess odour nuisance at various points within a sewer network.
• To identify critical locations contributing to odour nuisance.
• To guide the implementation of targeted corrective actions for odour mitigation.

Main Methods:

• Field study assessing odour nuisance across different sewer network locations.
• Evaluation of key odour parameters: hedonic tone, concentration, and intensity.
• Comparative analysis of odour nuisance levels at various sewer sites.

Main Results:

• Pumping stations were identified as critical points generating significant odour nuisance.
• The study confirmed the heterogeneity of odours across different sewer network locations.
• A correlation between specific odour parameters and perceived nuisance was observed.

Conclusions:

• Pumping stations require prioritized attention for odour control measures.
• Implementing odour treatment systems at critical points like pumping stations is recommended.
• Proactive odour management in sewer networks is essential for resident comfort and public image.