Publicação
Eutrophication vulnerability analysis in surface waters
| Resumo: | River Cavado water quality variability was studied for eutrophication vulnerability assessment at a new surface water supply intake. Since the river flow regime is artificially controlled by upstream multipurpose reservoirs, mathematical modelling was applied in evaluating alternative management scenarios. Due to the fact that surface water quality at intake location is mainly affected by a 5 km upstream wastewater treatment plant effluent discharge, algae and nutrients concentration simulations have been worked out in order to identify critical situations. Different algal concentration profiles along the river were obtained for local conditions of light energy, water temperature and estimated nutrient loads, showing high probability of eutrophication occurrence for some of the simulated scenarios. Results discussion of this study appears to be very useful for river basin wide water management policies evaluation. |
|---|---|
| Autores principais: | Vieira, J. M. Pereira |
| Outros Autores: | Pinho, José L. S.; Duarte, António A. L. Sampaio |
| Assunto: | Eutrophication modelling Algal growth Limitative factors Water quality assessment |
| Ano: | 1997 |
| País: | Portugal |
| Tipo de documento: | comunicação em conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| Resumo: | River Cavado water quality variability was studied for eutrophication vulnerability assessment at a new surface water supply intake. Since the river flow regime is artificially controlled by upstream multipurpose reservoirs, mathematical modelling was applied in evaluating alternative management scenarios. Due to the fact that surface water quality at intake location is mainly affected by a 5 km upstream wastewater treatment plant effluent discharge, algae and nutrients concentration simulations have been worked out in order to identify critical situations. Different algal concentration profiles along the river were obtained for local conditions of light energy, water temperature and estimated nutrient loads, showing high probability of eutrophication occurrence for some of the simulated scenarios. Results discussion of this study appears to be very useful for river basin wide water management policies evaluation. |
|---|