Probabilistic modeling of operational dynamic water balance system for a mining facility

Pelenk, Ümit Giray
Water management in any environment is quite difficult and complex not only because of the effort that is required to comply with the environmental regulations but also due to the dynamic nature of the system not well suited for the deterministic approaches. As a result, probabilistic approaches are developed to make decisions that can actually represent the uncertainties quantitatively as probability distributions. Such methods, considered to be the best practice in mining industry, are very useful to make design planning and management decisions as we predict an ensemble of probable outcomes and to develop strategies minimizing the associated risks. In this thesis, probabilistic simulation is conducted for the purpose of evaluating the dynamic water balance system for one of the mining facilities, called heap leach, by using a software program called GoldSim, which uses the Monte Carlo simulation to model the dynamic systems quantitatively to represent the uncertainties in the systems. Primary objectives of this water balance model are to evaluate the ponds capacities and the external makeup water demand during the heap leach operation. The probabilistic model simulations showed that the current ponds have the capacity to accommodate the solution being circulated at the heap leach facility and no overflow would be expected at the storm pond. The model results also show that the external makeup water demand during the operation life of the proposed heap leach facility is estimated to be around 80 m3 /hr (22 L/s) from 2nd to 8th year of the operation, at the 95th percentile


Comparison Of Three Uncertainty-Analysis Methods To Assess Impacts On Groundwater Of Constituents Leached From Land-Disposed Waste
Ünlü, Kahraman; Chong, P.K. (Springer Science and Business Media LLC, 1995-02-01)
Assessment of the environmental fate and behavior of constituents that have the potential to leach from waste-disposal pits that are associated with petroleum exploration and production activities is a problem of interest to industry and regulatory agencies. A stochastic modeling approach for the migration of constituents in soil and groundwater was developed to assess the impact on groundwater at receptors that are downgradient from a waste pit. The model evaluates uncertainties in constituent concentrati...
A Multi-Scale Approach for Improved Characterization of Surface Water-Groundwater Interactions: Integrating Thermal Remote Sensing and in-Stream Measurements
VARLI, Dilge; Yılmaz, Koray Kamil (2018-07-01)
The interaction between surface water and groundwater is recognized as a key process for effective management of water resources. However, scale dependency and spatial heterogeneity of the processes at the interface are limiting factors in the characterization of this process. A hierarchical, multi scale methodology has been devised and demonstrated to effectively and efficiently characterize the surface water-groundwater interaction along a 2-km reach in Kirmir stream, Turkey. Our methodology starts with i...
Rehabilitation of water supply systems
Toğrul, Nevzat; Merzi, Nuri; Department of Civil Engineering (2015)
Management of water supply systems by an economic and efficient way is a significant issue for water authorities. Selection and operation of water supply elements appropriately to satisfy water need affects the energy consumption of the system. This study aims to constitute a long term rehabilitation plan for water supply elements (only storage tanks, pumps and transmission line pipes are in the scope of the study). A case study has been performed on N8.3 pressure zone of Ankara water distribution network. ...
A Quantitative Study for Evaluation of Coastal Scenery
Ergin, Ayşen; Ucar, Baris (2011-11-01)
Scenery is a resource that has to be evaluated in an objective and quantitative manner to provide a means of comparison against other resource considerations and environmental impact assessments. This article presents the results of a quantitative evaluation of coastal scenery, enhancing the previous public survey questionnaires for Turkey, the U.K., Malta, and Croatia. The technique developed to evaluate coastal scenery uses 26 scenic parameters (of both physical and perceptual characteristics) for the fou...
Modeling biogeochemical dynamics in porous media: Practical considerations of pore scale variability, reaction networks, and microbial population dynamics in a sandy aquifer
King, E. L.; Tuncay, Kağan; Ortoleva, P.; Meile, C. (Elsevier BV, 2010-03-01)
Prediction of the fate and environmental impacts of groundwater contaminants requires the identification of relevant biogeochemical processes and necessitates the macroscopic representation of microbial activity occurring at the microscale. Using a well-studied sandy aquifer environment, we evaluate the importance of pore distribution on organic matter respiration in a porous medium environment by performing spatially explicit simulations of microbial metabolism at the sub-millimeter scale. Model results us...
Citation Formats
Ü. G. Pelenk, “Probabilistic modeling of operational dynamic water balance system for a mining facility,” Thesis (M.S.) -- Graduate School of Natural and Applied Sciences. Geological Engineering., Middle East Technical University, 2019.