In situ method for making impervious or sealing or decontaminating old disposals, i.e. consolidated waste disposals, so-called old deposits, and contaminated sites

摘要

The object of the invention is the subsequent sealing or decontaminating of such old waste disposals or suchlike disposals, the intention being in particular to minimise or completely prevent the escape of seepage water, seepage gases and the like from such old deposits and contaminated sites and to thus prevent the endangering of ground water, surface water and adjoining plots of land. This is achieved according to the invention in that first of all the configuration, i.e. shape and depth, of the disposal bottom and the sloping areas is established by means of methods known per se, preferably geoelectrical measuring methods, that pipes with openings close to or at their lower end or pipes perforated in the lower area are thereupon distributed over the disposal area and inserted down to this disposal bottom and these sloping areas, and that finally sealing compounds for forming an impervious trough in the bottom and sloping areas of the disposal body are fed in through these pipes. IMAGE