Introduction and Assessment of a New Effluents Usage Method

Document Type : Research Paper


1 Irrigation and Reclamation Eng. UT

2 University of Tehran


The increase in water demand from different aspects of water usage highlights the importance of the treated wastewater as a new water resource. The main aim of the current paper is to present a new method to specify the best applications for effluents involving fuzzy and entropy approaches based on the characteristics of effluents. To achieve this goal, the effluents’ characteristics data of Arak city wastewater plant were utilized from 2013 to 2017. Also, six possible consumption options were determined and considered. Then, the appropriate parameters that were involved with the new derived indices were selected and the best options were chosen. The mentioned indices are named the Fuzzy Effluents Quality Index (FEQI) and the Entropy Effluents Quality Index (EEQI). The results of the research indicate that not only the proposed indices are sensitive to the input parameters, but they also classify the effluents correctly. Moreover, the results illustrated that the quality of Arak effluents in the last 5 years have improved. As in the last year, according to the new indices, the effluents can be used in industrial, environmental, fodder production, cooked vegetables, oil seed production, and artificial groundwater recharge systems.


Main Subjects

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