Abstract

ZAVALETA MERCADO, Ronanth. Diseño conceptual para la descontaminación y economía de agua en plantas de desamargado de quinua. Rev Cien Cult [online]. 2010, n.24, pp.85-96. ISSN 2077-3323.

A conceptual design is set up aimed at decreasing the amount of water used in the desaponification of quinoa grains and a consequent reduction in pollutants contained in treatment plants effluents of this Andean pseudocereal. To this end, process modifications are considered, including a stage of centrifugation as an alternative to lowering costs associated with wet grain drying, allowing at the same time the efficient separation of aqueous solutions of saponins and its decontamination by means of a system using a tubular reactor and a clarifier for the removal of suspended solids. The decontaminated and clarified liquid is returned to the desaponification process, reducing drastically both the water consumption and the emission of pollutant effluents. For the purposes of analyzing the feasibility of the concept, a deterministic unsteady state model is set up based on the principle of conservation of matter. Numerical solutions are evaluated to generate the appropriate inference.

Keywords : sweetening; desaponicación; saponins; sapogenins; aglicones; transport interface; molecular mechanisms; convective/diffusive transport; hemolytic effect; rigid equations; clarier; settler; dimensionless group of Sherwood; dimensionless Reynolds group; dimensionless Schmidt group.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )