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Ecological risk-based performance evaluation of a waste stabilization pond


Abbassi, R and Khan, F and Hawboldt, K, Ecological risk-based performance evaluation of a waste stabilization pond, Environmental Engineering and Management Journal, 9, (6) pp. 757-764. ISSN 1582-9596 (2010) [Refereed Article]

DOI: doi:10.30638/eemj.2010.101


Ecological Risk Assessment is the process of defining and quantifying risks to ecological entities and determining the acceptability of the predicted risk. The estimated risk of the effluent of treatment systems can be used to assess its performance. Waste stabilization ponds (WSPs) are widely used for treating the tailing water on mine sites. The objective of this study is to assess the risk of effluent from the specific WSP to ecosystem. The chemical concentrations in the freshwater pond and marine water in the vicinity of the WSP were calculated using pond data and fate and transport models (SESOIL and AT123D). Subsequently, estimated chemical concentrations are used in quantifying the ecological risk using ERA software developed at Memorial University for ecological risk assessment. The results of calculating risk shows that the chemical contaminants released from the WSP has a maximum effect on the polar bears as one of the ecological entities in the vicinity of the pond. Finally, uncertainty analysis is conducted to demonstrate the risk zone and the risk range.

Item Details

Item Type:Refereed Article
Keywords:Ecological risk; Performance; Stabilization pond; Uncertainty; Ursus maritimus
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Ocean engineering
Objective Division:Mineral Resources (Excl. Energy Resources)
Objective Group:Environmentally sustainable mineral resource activities
Objective Field:Environmentally sustainable mineral resource activities not elsewhere classified
UTAS Author:Abbassi, R (Dr Rouzbeh Abbassi)
UTAS Author:Khan, F (Professor Faisal Khan)
ID Code:94536
Year Published:2010
Web of Science® Times Cited:3
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2014-09-11
Last Modified:2014-09-22

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