摘要：The objective of this research is to evaluate the efficiency of Opuntia ficus indica as a coagulant in the treatment of gray water, for which a series of tests were carried out for different amounts of coagulant, the latter was prepared as a powder from Opuntia ficus indica; the physicochemical parameters of the gray water were characterized, the coagulant was applied in the jar test equipment and the optimal dose of the coagulant was determined based on the variation of the quality parameters; As a result, a water initially above the reference regulations was obtained, an optimal dose of 1,625 g/L and when applied in the pilot system, the following percentages were obtained in treatment: 30.37% pH, 16.42% CE, 38.46% Salinity , 17.02% TDS, 96.67% TSS, 88.19% Turbidity, 72.98% BOD, 71.41% COD, 90.64% Detergents, 65.34% Phosphate and 72.81% Nitrite; Therefore, it is concluded that the natural coagulant is efficient for the treatment of gray water and can be used for irrigation of vegetables.
关键词：Grey waters;natural coagulant;Opuntia ficus indica;mucilage;pilot system
