Estimativa da degradação de geomembranas de polietileno por radiação ultravioleta

Abstract

The present study addresses the degradation of high-density polyethylene (HDPE) geomembranes, used as waterproofing barriers in landfills, due to prolonged exposure to ultraviolet (UV) radiation. HDPE geomembranes play a crucial role in containing percolated liquids (leachate), preventing infiltration into the soil and mitigating environmental impacts. However, exposure to UV radiation can accelerate the degradation of this material, compromising its mechanical properties and its effectiveness as a barrier. The study adopts a comparative approach, using documentary survey that uses remote sensing techniques, in addition to analysis of experimental studies that simulate mechanical efforts and permeability estimates. The general objective is to consolidate knowledge and estimate the degradation of HDPE geomembranes, focusing on the effects of UV radiation and its influence on the durability of the material. The research explores different scientific studies, highlighting factors that impact the longevity of geomembranes in field conditions, and compares the results obtained.