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Regardless of the policy guidelines and allocated resources, at the end of any management strategy, solid waste must be stored in a disposal site. Nowadays in Iberoamerica a large fraction of generated urban waste ends at these sites, of which just over 30 % are sanitary landfills. The rest are controlled or uncontrolled dumping sites in which the conditions of protection for the population and the environment against waste pollution are inadequate. Independently of the disposal conditions, after reaching landfill capacity, the site constitutes an environmental liability that must be controlled for many years to prevent damage which may be severe. In fact, the rules stipulate the obligation to close and reintegrate these sites, with periods of environmental surveillance of more than 20 years after closure. In Iberoamerica there are examples of good practice at this stage of landfill life. As a help for different cases, based on experience and a compilation of technical information, this paper proposes a basic methodology to be followed in a project of this type, and presents several examples of landfill closure and rehabilitation in this region of the world.

CIERRE, SELLADO Y REINSERCIÓN DE ANTIGUOS VERTEDEROS. EXPERIENCIAS EN IBEROAMÉRICA