Engineering Term of the Month GEOMEMBRANE
Geomembranes are synthetic membranes with low permeability , primarily used to control fluid migration in various engineering projects . These materials are typically made from polymers such as high-density polyethylene ( HDPE ), lowdensity polyethylene ( LDPE ), polypropylene ( PP ), and polyvinyl chloride ( PVC ). Their impermeability , chemical resistance , and durability make them ideal for a range of applications , including landfills and reservoir liners .
Use in Landfills
In landfills , geomembranes serve as critical barriers that prevent contaminants from leaching into the surrounding soil and groundwater . They are usually installed at the base and sides of landfill cells to contain waste and protect the environment . HDPE geomembranes are particularly favored for landfill applications due to their excellent chemical resistance and mechanical strength Use in Reservoirs Geomembranes are also extensively used in lining reservoirs to prevent water loss through seepage . These liners create a barrier between the water and the soil , ensuring that the stored water remains within the reservoir . This is particularly important in arid regions where water conservation is crucial . HDPE and PVC geomembranes are commonly used for reservoir liners due to their flexibility and ease of installation .
Sources : https :// jwgeosynthetic . com / what-geomembrane-are-used-in-landfills % EF % BC % 9F What ’ s the role of geomembrane in a landfill Geomembranes Explained : HDPE , LDPE , and PVC Differences