WATER BARRIER SHEET FOR LANDFILLING TREATMENT WITH WASTE, AND LANDFILLING TREATMENT WITH WASTE USING THE SAME

摘要

PURPOSE:To prevent the generation of an environmental problem after landfilling treatment by forming a water barrier sheet for the landfilling treatment with waste from a waterproof air permeable sheet having a porous film provided to at least one part thereof. CONSTITUTION:A waterproof air permeable water barrier sheet is formed by superposing a porous film 1 having air permeable reinforcing sheets 2, 3 laminated and bonded to both surfaces thereof on a water barrier sheet 4 having a plurality of notch parts so as to surround each of the notch parts of the sheet 4 and bonding the peripheral edge part of the porous film to the water barrier sheet 4. When the porous film 1 is incorporated in the water barrier sheet 4, it is not necessarily to provide the notch part of the surface of water barrier sheet and the water barrier sheets 4 are bonded to both surfaces of the porous film 1 and the intermediate parts of the sheets are composed of the porous sheet 1 or a large number of through-holes are provided to the water barrier sheets 4 at predetermined places and the porous films 1 are superposed on the through-hole parts to be bonded thereto.