Evaluación del efecto de las plantas acuáticas en tratamiento de aguas servidas.

Abstract

The present study was carried out in order to analyze the effect of floating aquatic plants for the treatment of domestic wastewater, evaluating the efficiency in various physical, chemical and bacteriological parameters, characteristic of a discharge to a body of considerable fresh water within of the limits of the TULSMA technical standard that regulates in the country. In addition, it was possible to evaluate by means of tests in the Water Laboratory of the Catholic University of Santiago de Guayaquil, two independent domestic wastewater treatment systems, one of which consisted of a Septic Tank, Water Lettuce Lagoons covering totally and partially the surface and finally a limestone filter. In the other case, a pilot plant consisting of 5 Plastigama tanks of 250 and 500 liters capacity was installed, in which the first tank was homogenizer and the remaining 4 had two types of aquatic plants on their surfaces (Lettuce of Water and Lentil of Water) also covering totally and partially the surface according to the discharge. After the samplings, comparative graphs were made to establish the efficiency of each process verifying that the results obtained are below the maximum permissible limit of the norm, always having a constant control so that aquatic plants can perform their function. Mention the future uses that could be granted to aquatic plants after their use in wastewater treatment.