Elaboración de menú para encapsulamiento de residuos peligrosos gestionados por el centro de remediación HAZWAT

Abstract

In this project, the feasibility of the encapsulation of hazardous waste from the Hazwat company was sought. This alternative is intended to stabilize contaminants in a solid matrix, such as paving stones. Firstly, through field visits, an inventory of the hazardous waste available in the Hazwat company was carried out in order to identify the stock of waste to be used in each of the sheds. For this study, the following were chosen: oil separation sludge, ashes incineration and tobacco leaves. Previously, the incineration ashes, tobacco leaves, cement and sand were subjected to physical tests, to define the dosages and mixtures necessary for the preparation of the pavers. Subsequently, these passed to the curing phase, and after 14 days from their preparation, the resistance and absorption tests were carried out according to the NTE INEN 1488 standard. As a result, it was obtained that the dosages presented mechanical resistance to compression in a range of 1.99 MPa to 3.60 MPa, and in the absorption values between 11.77% and 26.29% were presented, being lower than the analyzed regulations. Therefore, leaching analyzes were not performed. Finally, the results made it possible to determine that despite having obtained an integral product in its hexagonal structure, the aesthetic and resistance affectation was notorious. However, with the data provided, a precedent is set for future research with the hazardous waste used.