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Storage tanks’ olive mill wastewater management in Tunisia

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Abstract

The olive oil processing industry requires large quantities of water and generates huge quantities of toxic olive mill waste water (OMWW). In Tunisia, these effluents are often stored in evaporation ponds. In some cases, notably the region of Sousse, the distribution of these tanks hinders the discharge operation. In the present work, a prospective analysis based on a multi-criteria analysis was carried out to propose adequate locations for the installation of new storage tanks in congruity with the regional strategic plan in uncovered areas’ recommendation. Taking into account hydro-geological, environmental, and socio-economic dimensions, the Geographic Information System (GIS) tool and the multi-criteria analysis method of over-classification ELECTRE III were implemented. The overall analysis proposes appropriately distributed locations of storage tanks extensions in uncovered delegations of Sousse region, which can represent a powerful support to local decision-makers.

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Notes

  1. Sahel: The Sahel or more precisely the Central East Tunisia Region is an area of central eastern Tunisia and one of the Six Tunisian Regions. It stretches along the eastern shore, from Hammamet in the north to Mahdia in the south, including the governorates of Monastir, Mahdia, and Sousse. Its name derives from the Arabic word sāḥil, meaning "shore" or "coast".

  2. Data of the Tunisian Ministry of Agriculture.

Abbreviations

OMWW:

Olive mill waste water

GIS:

Geographic Information System

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Correspondence to Saida Elfkih.

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Elkadri, A., Elfkih, S., Sahnoun, H. et al. Storage tanks’ olive mill wastewater management in Tunisia. Sustain. Water Resour. Manag. 8, 14 (2022). https://doi.org/10.1007/s40899-021-00593-x

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  • DOI: https://doi.org/10.1007/s40899-021-00593-x

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