Diseño y construcción de un equipo de prueba de jarras para el laboratorio de la Espoch - sede Orellana

Abstract

The present research of curricular integration was as aimed to detail the design parameters and steps involved in the construction of jar test equipment for water treatability, which represents the coagulation, flocculation and settling processes of a drinking water treatment plant at laboratory level. Two methodologies were analyzed for design of the stirring system, which were geometric standardization and formula resolution, with the formula resolution method being applied to obtain suitable values for the system to fulfil the function of homogenizing substances. For the design of equipment, AutoCAD software was used to obtain a 3D perspective of the structure and a flat diagram of stirring system which, based on calculations, had a paddle diameter of 9 cm. and a width of 3 cm, arm of which has a length of 14.17 cm, latter characterized by being assembled with stainless steel material due to its direct contact with the water, guaranteeing useful life of the equipment. In addition, preliminary tests were carried out on equipment, testing its functionality at high speeds such as 200 rpm and low speeds of 25 rpm. It is concluded that the equipment built helps to fulfil processes mentioned above, however, to optimize them, coagulant and time applied for each jar test must be considered. It is recommended the development of improvements for the equipment such as design of speed programming and dosing system combining knowledge from other careers.