Management of industrial waste on sustainable landfills: Influence of the ageing of stabilised/solidified metallic waste on the leaching characteristics
In this work, products obtained by stabilisation/solidification of electric arc furnace dust at industrial scale have been studied in order to control their leaching pollution in a lifetime on sustainable landfills. Total metallic pollutants, NEN 7341 availability test and three different mobility tests have been studied as basic and compliance characterisation at two different curing ages, 28 and 385 days: EN 12457 batch leaching test at two liquid/solid ratios, 2 and 10 L/kg, and prEN 14405 up flow percolation leaching test have been developed in the end-products.
The pH value, conductivity and traditional and oxy-anionic heavy metal concentration, cadmium, lead, molybdenum and antimony, have been analysed in the leachates. The results of the pH value diminish in the aged samples giving a smaller mobility of the pollutants. The results have been compared with the European landfill regulation; the ageing of the samples enables the disposal of the stabilised/solidified products in a non-hazardous waste landfill. Finally, hydroxides and carbonates have been modelled on the leaching results for cadmium, lead and antimony and molybdates in the case of molybdenum.
| Copyright: | © Aristotle University of Thessaloniki | |
| Source: | 2nd International Conference 2009 (Juni 2009) | |
| Pages: | 6 | |
| Autor: | A. Coz  Begoña Ruiz-Labrador Javier Rufino Viguri Fuente Ana Andrés | |
| The library including buying options has moved to https://library.wasteculture.com Previously purchased articles can still be downloaded via myASK. | ||
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