Descriptive Methods and Compromise Programming for Promoting Agricultural Reuse of Treated Wastewater

Abstract

The present chapter reports on a practical case of decision making in agricultural TWW reuse. The studied site concerns the Cebala TWW irrigated perimeter in Tunisia, located in North Africa. Crucially though in this perimeter is that TWW is under-exploited. Thus, the proposed research dwells on the future of this perimeter which could oscillate between hope and deadlock. In case of hope, shall we improve the quality of the resource and possibly move to the tertiary treatment? And in case of deadlock, shall we give up the TWW reuse or substitute it by a conventional resource? To make an evaluation of this experience, the authors first gave a general overview of the descriptive study in a dashboard. Contingent valuation method was used to assess qualitative data and gauge the intangible effects. Then, the authors presented a systemic multicriteria method deployed to make decision-making process easier. Such a method or technique, which is grounded on Lp metrics, is called Compromise Programming.