Abstract
The aim of this study was to investigate the potential effect of climate changes on stormwater
characteristics and treatment efficiency of retention ponds. This was performed by using an
integrated model for two scenarios representing the current situations and a climate change
scenario with increased intensity of extreme events. The study was conducted in a catchment
in Albertslund, Denmark. The collected data showed a clear relation between stormwater
quality parameters and rainfall intensity and antecedent dry period. Extreme events resulted in
high particulate concentrations and high loads. The dissolved concentrations showed no
strong relationship to rainfall intensity. The simulations with the integrated model showed
that the climate change increase of rainfall intensity led to an increase in the concentrations
discharged from the catchment. The higher flows caused a decrease in the pond removal
performance with an overall increase in the particulate concentrations discharged to the
environment. The changes in the two scenarios affected only the particulate phase, so no
major impact on toxicity due to stormwater discharge is expected due to climate change.
Further research is needed to address the seasonal fluctuations and provide a better analysis of
the potential impacts due to climate change.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 12th International Conference on Urban Drainage |
| Publication date | 2011 |
| Publication status | Published - 2011 |
| Event | 12th International Conference on Urban Drainage - Porto Alegre, Brazil Duration: 11 Sept 2011 → 16 Sept 2011 Conference number: 12 http://www.acquacon.com.br/icud2011/en/ |
Conference
| Conference | 12th International Conference on Urban Drainage |
|---|---|
| Number | 12 |
| Country/Territory | Brazil |
| City | Porto Alegre |
| Period | 11/09/2011 → 16/09/2011 |
| Internet address |
Keywords
- Storm water quality
- Climate change effects
- Treatment
- Integrated model
- Retention ponds
