Field measurement of re-suspension in a tailings pond by acoustic and optical backscatter instruments
Laxmi Kant Kachhwal, Ernest K. Yanful, Colin D. Rennie
In the proceedings of: GEO2010 Calgary: 63rd Canadian Geotechnical Conference & 6th Canadian Permafrost ConferenceSession: W2-D
ABSTRACT: Wind induced re-suspension of bed tailings is an important consideration in the design and implementation of water cover technology for reactive tailings management. Field measured acoustic and optical backscatter data were used to obtain suspended solids concentrations in water. Acoustic backscatter data were correlated with suspended solids concentration obtained from two field calibrated optical backscatter sensors. The optical backscatter results showed the re-suspension up to 25 mg/L. The results also showed that the acoustic backscatter data were relatively less sensitive to small variations in the concentrations than optical backscatter data for the range of re-suspension measured in the tailings pond.
RÉSUMÉ: La remise en suspension des résidus miniers par le vent est in facteur important dans la conception de la technologie de couvert d'eau pour la gestion des résidus réactifs. Des données mesurées au champ de rétrodiffusion acoustique et optique ont été utilisées pour obtenir des concentrations de matières solides en suspension dans l'eau. Des données de rétrodiffusion acoustique ont été corrélées avec la concentration de matières solides en suspension obtenu de deux capteurs de rétrodiffusion optique calibrée au champ. Les résultats optique ont montré la remise en suspension jusqu'à 25 mg/L. Aussi les résultants montrent que les données acoustiques ont été relativement mois sensibles à les petites variations dans les concentrations pour résidus en suspension comparé à données optique pour la gamme mesurées dans le bassin de résidus.
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Laxmi Kant Kachhwal; Ernest K. Yanful; Colin D. Rennie (2010) Field measurement of re-suspension in a tailings pond by acoustic and optical backscatter instruments in GEO2010. Ottawa, Ontario: Canadian Geotechnical Society.
@article{GEO2010_155,
author = Laxmi Kant Kachhwal; Ernest K. Yanful; Colin D. Rennie,
title = Field measurement of re-suspension in a tailings pond by acoustic and optical backscatter instruments ,
year = 2010
}
title = Field measurement of re-suspension in a tailings pond by acoustic and optical backscatter instruments ,
year = 2010
}