Treated Wastewater Reuse on Citrus in Morocco: Assessing the Economic Feasibility of Irrigation and Nutrient Management Strategies

Oubelkacem, Abdellah ; Scardigno, Alessandra ; Choukrallah, Redouane (2020) Treated Wastewater Reuse on Citrus in Morocco: Assessing the Economic Feasibility of Irrigation and Nutrient Management Strategies. Integrated Environmental Assessment and Management . ISSN 1551-3793
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Reuse of treated wastewater (TWW) for irrigation can be an effective strategy in Mediterranean countries to overcome the pressure on freshwater resources if its economic viability is demonstrated. In this work, the assessment of the economic feasibility of irrigation and nutrient management with TWW reuse was carried out in the citrus sector in the Souss Massa region of Morocco. Considering the effects of TWW reuse on yields, water, and fertilizer requirements, a mathematical nonlinear optimization model was used to identify the optimal allocation of land and nonuniform quality irrigation water and to assess the impacts on the economic performance of the citrus sector. Different water price and irrigation technology scenarios have been simulated. Overall results indicated that the reuse of TWW—with a current price higher than the conventional resource—must be subsidized to be proposed as a convenient alternative for irrigation. A reduction in the TWW price from its current level (0.23 Euro/m3 ) to a level equal to that of fresh water (0.15 Euro/m3 ) would encourage farmers to use TWW on 59% of the total cultivated area, leading to a 350 mm reduction in quantity of used fresh water per hectare

Document type
Oubelkacem, AbdellahCIHEAM—Mediterranean Agronomic Institute of Bari
Scardigno, AlessandraCIHEAM—Mediterranean Agronomic Institute of Bari0000-0001-9196-1090
Choukrallah, RedouaneDepartment of Horticulture, Hassan II Institute of Agronomy and Veterinary Medicine, Rabat, Morocco
Treated wastewater reuse, Citrus, Economic feasibility, Optimization model, Mediterranean region
Deposit date
06 Oct 2020 12:37
Last modified
12 Feb 2021 22:00
Project name
MADFORWATER - DevelopMent AnD application of integrated technological and management solutions FOR wasteWATER treatment and efficient reuse in agriculture tailored to the needs of Mediterranean African Countries
Funding program
EC - H2020

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