Author/Editor		Zupančič Justin, Maja; Vrhovšek, Danijel; Istenič, Darja
Title		Vegetative landfill covers and treatment of landfill leachate
Type		članek
Vol. and No.		Letnik 1, št. 2
Publication year		2012
Volume		str. 57-66
Language		eng
Abstract		Landfilling is expected to remain as a waste disposal route in the future at least as a means of disposing different wastes that cannot be reused, recycled or burnt. There are also a lot of existing minicipal landfill sites as well as landfill sites of other sort of wastes, which need to be closed properly, to prevent environmetnal pollution. Conventional cover systems usually consist of a membrane liner, which can be connected with high investment as well as maintenance costs. In the last 15 years so called vegetative landfill cover systes have been introduced exhibiting several beneficial properties. These co-natural vegetative covers can be connected also with co-natural way of landfill leachate treatment in constructed wetlands. In this manner LIMNOTOP system was introduced combining vegetative landfill cover, constructed wetland for leachate treatment and subsuperficial leachate irrigation on vegetative cover. In the paper, the experiences of a pilot project of sustainable rehabilitation of landfill site with innovative approach of leachate management are presented. The technology enabled sustainable landfill closure and elimination of negative impacts of the landfill site on the environment. The results showed that the irrigation with treated leachate not only reduced water stress of vegetative landfill cover, but also added nutrients, particularly nitrogen, to the soil.
Keywords		municipal waste leachate treatment willows constructed wetland landfilling