Abstract
The cationic polyelectrolyte is commonly adopted as a coagulant aid to reinforce the function of coagulant agent in industrial and municipal purposes; As a result, ferric chloride could be considered as the major chemical coagulant and Cationic Poly Electrolyte CPE as the coagulant aid. A set of examinations were implemented to minimize the amounts of both ferric chloride and CPE and to increase the removal efficiencies for the contaminants concentrations such as turbidity, total suspended solids (TSS), total dissolved solids (TDS) and chemical oxygen demand (COD) originated in grey wastewater so as to reuse these water for irrigation purposes. The combination of ferric chloride and cationic polyelectrolyte was found to improve the results for pollutants removal efficiency (Turbidity, TSS, TDS, and COD), by (97.5%, 91%, 88% 75%) respectively. The predicted results from artificial neural network (ANN) approach versus that observed from the experimental study for COD, TDS, TSS and turbidity removal showed an acceptable agreement for all models. All the parameters had a value of R2 of (0.9972, 0.9993, 0.9992, 0.9985) respectively
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