Evaluación del almidón de papa como floculante para el tratamiento de aguas residuales domesticas

Abstract

Since water is one of the primary resources for the existence of living beings, which is why man is concerned with trying to keep it as uncontaminated as possible, there is a need to carry out treatments for its clarification by investigating alternatives to chemical inputs, which allow us to improve water quality, reduce environmental impacts and subsequently reuse it. For which the coagulation process of wastewater was evaluated, by adding a natural coagulant-flocculant obtained from potato starch for the treatment of wastewater, because organic polymers, unlike synthetic ones generally used in conventional treatment plants, have minimal or no toxicity, are less harmful, environmentally friendly to remove turbidity from water, added to the capacity of the Boyacá department of being one of the largest producers of tubers of the best quality, for which Native Starch was obtained and chemically modified by oxidation, it was characterized by FTIR and SEM, simulation tests were carried out to determine the optimal concentration and dose and its turbidity and color were evaluated. The results indicate that potato starch, as an alternative coagulation - flocculation technique, is good, because it is an adaptable, viable and flexible technology option to the operating conditions of conventional WWTPs to subsequently carry out an adequate and safe reuse for other purposes.