Most geomembranes are generally resistant to biological degradation, meaning they are not easily broken down by microorganisms such as bacteria, fungi, and algae. This resistance is due to the synthetic materials from which geomembranes are made, such as high-density polyethylene (HDPE), polyvinyl chloride (PVC), and ethylene propylene diene monomer (EPDM), which are not conducive to microbial growth.
As a result, geomembranes maintain their structural integrity and impermeability over time, even when exposed to biological agents in soil, water, or waste environments. This resistance to biological degradation ensures the long-term performance and reliability of geomembranes.
