The present article estimates the financial benefits of water reuse by calculating the annualised total cost of water and wastewater management, using mixed integer linear programming. The programme is using as input: geographical data, population distribution, and groundwater availability (for a given area), to calculate the qualitative localised water needs, and to estimate the sizes and locations of water and wastewater management infrastructure, so as to minimise the relative annualised total cost (capital and operating). The programme is used to calculate the optimum water and wastewater infrastructure (and the relative annualised water and wastewater management cost), with and without the option for water reclamation and reuse. One case study is presented for the Greek islands of Santorini and Thirasia. The proposed model has showed significant computational benefit, compared with previous models. Thus, for Santorini–Thirasia Islands, the total annualised cost for optimum water and wastewater management infrastructures, with water reclamation, has been calculated as $2,153,694, while the above cost has been calculated as 19% higher, if water reclamation is not an option. It is obvious from the computational results that water reuse can reduce significantly the total water and wastewater management cost.
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Research Article|
February 26 2015
Optimal planning of water and wastewater management infrastructure for insular areas: the role of water reuse Available to Purchase
Petros Gikas;
1School of Environmental Engineering, Technical University of Crete, Chania Campus, Chania, 73100, Greece
E-mail: [email protected]
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Songsong Liu;
Songsong Liu
2Centre for Process Systems Engineering, Department of Chemical Engineering, University College London, London WC1E 7JE, UK
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Lazaros G. Papageorgiou;
Lazaros G. Papageorgiou
2Centre for Process Systems Engineering, Department of Chemical Engineering, University College London, London WC1E 7JE, UK
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Flora Konstantopoulou
Flora Konstantopoulou
1School of Environmental Engineering, Technical University of Crete, Chania Campus, Chania, 73100, Greece
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Water Supply (2015) 15 (4): 701–708.
Article history
Received:
June 01 2014
Accepted:
January 19 2015
Citation
Petros Gikas, Songsong Liu, Lazaros G. Papageorgiou, Flora Konstantopoulou; Optimal planning of water and wastewater management infrastructure for insular areas: the role of water reuse. Water Supply 1 July 2015; 15 (4): 701–708. doi: https://doi.org/10.2166/ws.2015.017
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