PREDICTIVE ENVIRONMENTAL MODELING OF EFFLUENT AMMONIA CONCENTRATIONS FOR FEASIBILITY LEVEL OPEN PIT MINE PROJECTS.

CIM Toronto 2009
Catherine Tina Ziten, David Robert Gladwell,
Abstract Predictive estimation of aqueous ammonia concentrations for open pit, mine project environmental feasibility studies is inadequately documented. A universal ammonia range has been proposed, but does not take into account temporal variability, which can be substantial in northern latitudes. A predictive model suitable for open pit mine environmental studies, drawing on agricultural industry research, is described. The quarterly model incorporates ambient temperature, wind speed, rainfall, surface water hydrology and ammonia/ammonium ion aqueous equilibrium as well as projected mine statistics. Methods of estimating initial ammonia loading are reviewed and model results for a range of open pit mine projects are described.

KEYWORDS: Ammonia, Modeling, Feasibility, Environmental, Open Pit Mining
Keywords: Ammonia, Feasibility, Open pit mining, modeling, Environmental
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