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Evaluation of the effect of Moringa oleifera and Caesalpinia spinosa mixtures on surface water turbidity

Abstract:

The chemical coagulants used in the purification of surface waters generate a negative impact on the environment, with long-Term effects on human health. The present study was carried out with the purpose of evaluating the coagulation-flocculation from Moringa oleifera and Caesalpinia spinosa seeds. The factors were evaluated: drying temperature of the seeds (45, 55 and 65 ° C), the concentration of NaCl in the solutions (0 and 5 g / L), as well as the agitation regime. Also, it was determined that the mixture of the solutions of M. oleifera and C. spinosa favor the removal of turbidity from the mixture dose of 15 mL / L of each solution. The water to be treated had a turbidity and initial color of 206 NTU and 2510 UPC respectively, the results for the mixtures showed values of turbidity and color removal of 98.03% and 95.56% respectively.