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A dynamical model of water recycling in a mine-processing enterprise

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Abstract

We consider a mine-processing enterprise, which runs a number of production plants. Each plant uses a considerable amount of water which is polluted during the production process. The aim is to determine the optimal amounts of water to be taken from a river or to be pumped back from a waste water reservoir. The problem is decomposed in two tasks. Task 1 is formulated as a time-discrete optimal control model and determines the amounts of water pumped in each period. The solution method used is dynamic programming. While Task 1 has an ecological objective (minimize environmental damage), in Task 2 the aim is to determine, by which pump configurations the desired quantities of water are most efficiently brought to reservoir (with least cost). Because of the special structure of this linear programming problem it can be solved simply by sorting with respect to unit costs.

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Authors and Affiliations

  1. Department of Business Administration, University of Vienna, Brünnerstr. 72, A-1210, Vienna, Austria

    Richard F. Hartl

  2. Department of Computer Systems & Informatics, State Engineering University of Armenia, Terian str. 105, 375009, Yerevan

    Gagik T. Kirakossian

  3. State Engineering University of Armenia, Terian str. 105, 375009, Yerevan

    Stanislav R. Hakobyan

  4. State Engineering University of Armenia, Terian str. 105, 375009, Yerevan

    Artyom H. Markaryan

Authors
  1. Richard F. Hartl
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  2. Gagik T. Kirakossian
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  3. Stanislav R. Hakobyan
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  4. Artyom H. Markaryan
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Additional information

Financial support by the Austrian Exchange Service (ÖAD) is gratefully acknowledged.

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Hartl, R.F., Kirakossian, G.T., Hakobyan, S.R. et al. A dynamical model of water recycling in a mine-processing enterprise. cent.eur.j.oper.res. 14, 45–57 (2006). https://doi.org/10.1007/s10100-006-0159-4

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  • DOI: https://doi.org/10.1007/s10100-006-0159-4

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