Ukusukela ngeminyaka yoo-1950, iinjineli ziye zayila ngempumelelo iigeomembranes.Ukusetyenziswa kwe-geomembranes, ekwabizwa ngokuba yi-flexible membrane liners (FMLs), kuye kwanda ngenxa yenkxalabo ekhulayo malunga nokungcoliswa kobutyebi bamanzi axabisekileyo.Iilayini zemveli ezinamaqhekeza, ezifana nekhonkrithi, i-admi...
Funda ngokugqithisileyo