10.4122/1.1000001127
Kasper, T.M.
T.M.
Kasper
Jenkins, G. A.
G. A.
Jenkins
Determining the background concentration of contaminants in a stormwater wetland
DTU Library, Technical University of Denmark (DTU)
2005
Conference presentation
Best management practice
constructed wetlands
nutrients
stormwater treatment
suspended solids
urbanization
urban stormwater management
water quality
PORR Umwelttechnik GmbH
Griffith University, CRC For Catchment Hydrology
CRC For Catchment Hydrology
Griffith University
2005
en
10.4122/1.1000001128
text/xml
Urban stormwater wetlands have been widely embraced by the community as a beneficial part of the stormwater infrastructure. Although a reasonably large body of research has been undertaken into the treatment efficiency of wetlands during storm events, relatively little is known about inter-event processes. Environmental effects such as wind direction and speed, wildlife and other anthropogenic activities have a significant impact on these processes. The development of a suitable model of these processes is limited by a lack of fundamental data on the movement of contaminants within a stormwater wetland during these inter-event periods. This paper describes a study that has been undertaken to determine the background concentration of suspended solids and nutrients in a constructed stormwater treatment wetland. The study has included an intensive monitoring program throughout a recently constructed wetland in Brisbane. The study has identified that design issues such as the characteristics of the inlet structure play a significant role in the resuspension and movement of suspended solids through the wetland system. Wildlife and anthropogenic activities are also identified as playing an important role during inter-event periods. However, it is clear that the distribution and density of vegetation influence the removal of suspended solids and nutrients within the system during these inter-event periods.