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A simplified model for reservoir operation considering the water quality issues: Application of the Young conflict resolution theory

Environmental Monitoring and Assessment volume 146, pages 77–89 (2008)Cite this article

Abstract

In this study, an algorithm combining a multi-objective genetic algorithm (GA)-based optimization model and a water quality simulation model is developed for determining a trade-off curve between objectives related to the allocated water quantity and quality. To reduce the run-time of the GA-based optimization model, the main problem is decomposed to long-term and annual optimization models. The reliability of water supply is considered to be the objective function in the long-term stochastic optimization model, but the objective functions of the annual models are related to both the allocated water quantity and quality. The operating policies obtained using this long-term model provide the time series of the optimum reservoir water storages at the beginning and the end of each water year. In the next step, these optimal reservoir storage values are considered as constraints for water storage in the annual reservoir operation optimization models. The ɛ-constraint method is then used to develop a trade-off curve between the reliability of water supply and the average allocated water quality. The Young conflict resolution theory, which incorporates the existing conflicts among decision-makers and stakeholders, is used for selecting the best solution on the trade-off curve. The monthly reservoir operating rules are then calculated using an Adaptive Neuro-Fuzzy Inference System, which is trained using the optimal operating polices. The proposed model is applied to the 15-Khordad Reservoir in the central part of Iran. The results show that this simplified procedure does not reduce the accuracy of the reservoir operating policies and it can effectively reduce the computational burden of the previously developed models.

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Author information

Affiliations

  1. Islamic Azad University-Science and Research Branch, Tehran, Iran

    Ehsan Shirangi

  2. Faculty of Civil Engineering, College of Engineering, University of Tehran, Tehran, Iran

    Reza Kerachian

  3. Shahid Chamran University of Ahvaz, Ahvaz, Iran

    Mahmood Shafai Bajestan

Authors
  1. Ehsan Shirangi
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  2. Reza Kerachian
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  3. Mahmood Shafai Bajestan
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Correspondence to Reza Kerachian.

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Shirangi, E., Kerachian, R. & Bajestan, M.S. A simplified model for reservoir operation considering the water quality issues: Application of the Young conflict resolution theory. Environ Monit Assess 146, 77–89 (2008). https://doi.org/10.1007/s10661-007-0061-0

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  • DOI: https://doi.org/10.1007/s10661-007-0061-0

Keywords

  • Reservoir operation
  • Conflict resolution
  • Genetic algorithms
  • Water quality
  • The Young theory