Captación y Mineralización del CO2 emitido por la chimenea del incinerador de la empresa Hazwat : evaluación de carbonato de potasio para fabricación de adoquines de hormigón.

Abstract

The purpose of this work was to evaluate the capture and mineralization of CO2produced by the chimney of the Hazwat company, in the manufacture of concrete pavers. Currently the CO2 is one of the main greenhouse gases and reducing its emissions is of great importance. For this, the feasibility of encapsulating potassium carbonate, a substance produced by the mineralization of carbon dioxide in cobblestones, was determined. This technique allows reducing the environmental impact of CO emissions industrially into the atmosphere, by plummeting the emissions of this gas generated by the company. Multiple field visits were made to the Hazwat company in Cayambe, where a tour of the facilities was conducted and the block machine was observed, which was helpful for the manufacture of paving stones. Then the CO2 was mineralized in potassium carbonate, a substance that was encapsulated. The dosages used to encapsulate the K2CO3 they were 25, 30, 45 and 50%. The paving stones were made in the block factory of the Hazwat company, where with the help of technicians they were set and cured in 28 days. After this time, the pavers were transferred to Escuela Politécnica Nacional to the Materials, Soil and Rock Mechanics Testing Laboratory (LEMSUR) to carry out the mechanical resistance and absorption tests, the results of which were compared with the NTE regulations. Additionally, in the laboratory of the Technological Training School (ESFOT), the leaching tests were carried out following the EPA 1315 standard and the quality standard. Finally, the results obtained in each test carried out were compared with the construction and quality regulations, concluding that the paving stones are suitable for use. In addition, that the paving stones can be used in different areas such as parking lots, highways, etc. The company will be given a technical report indicating the most appropriate dosage for the manufacture of paving stones.