Abstract
As a natural well known, but badly measured phenomenon fine sediments can be observed
in suspension in rivers and lakes. In natural rivers the sediment concentration in the suspension is
mostly a function of velocity and turbulence.
However, measurements of sediment concentrations are necessary, important but difficult. These
days especially turbidity probes are used for getting information about sediment concentration
continuously over longer periods. A well-known problem of this kind of measurement is its dependency on grain size, form and colour. A new methodology has been tested at Graz University of Technology for determining the sediment concentration in an easy way. A density probe, manufactured by the company Anton Paar GmbH, has been compared with a turbidity probe and conventional gravimetric analyses. The correlations are promising and the probe seems to be suitable to be used in rivers for measurements of suspended sediment concentration
in suspension in rivers and lakes. In natural rivers the sediment concentration in the suspension is
mostly a function of velocity and turbulence.
However, measurements of sediment concentrations are necessary, important but difficult. These
days especially turbidity probes are used for getting information about sediment concentration
continuously over longer periods. A well-known problem of this kind of measurement is its dependency on grain size, form and colour. A new methodology has been tested at Graz University of Technology for determining the sediment concentration in an easy way. A density probe, manufactured by the company Anton Paar GmbH, has been compared with a turbidity probe and conventional gravimetric analyses. The correlations are promising and the probe seems to be suitable to be used in rivers for measurements of suspended sediment concentration
| Original language | English |
|---|---|
| Title of host publication | Balance and uncertainty - water in a changing world |
| Subtitle of host publication | proceedings of the 34th IAHR World Congress |
| Place of Publication | Brisbane |
| Number of pages | 8 |
| ISBN (Electronic) | 978-0-85825-868-6 |
| Publication status | Published - 2011 |
| Event | 34th IAHR World Congress - Brisbane, Australia Duration: 26 Jun 2011 → 1 Jul 2011 |
Conference
| Conference | 34th IAHR World Congress |
|---|---|
| Country/Territory | Australia |
| City | Brisbane |
| Period | 26/06/11 → 1/07/11 |
Fields of Expertise
- Sustainable Systems
Treatment code (Nähere Zuordnung)
- Basic - Fundamental (Grundlagenforschung)
- Application