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|Title:||Slag and fly ash dump treatment with biodegradable waste herbaceous vegetation purpose||Authors:||Masu, Smaranda
|Keywords:||Slag;Fly ash;Biodegradable waste;Lolium perenne;Restoration||Issue Date:||2015||Publisher:||SciBulCom Ltd||Abstract:||
The effects of vegetation with herbaceous species Lolium perenne were assessed in different experimental variants using: thermal plant slag and fy ash topsoil fertilised with slaughterhouse sludge or sewage sludge. The amounts of fertilizer agent ranged between 5.0–25.0 t ha–1. The study was conducted over a period of two consecutive years of herbaceous culture. Fertilization process efficiency were not influenced by the nature of fertilizing agent, but they were directly proportional to the amount of fertilizer used. Using a large amount of fertilizer agent of 25.0 t ha–1 determined the highest yields of green mass. In contrast, the use of small amounts of fertilizer agent, 5.0 t /ha, resulted in the obtaining of seed quantities up to two times higher versus the seed quantities obtained on other experimental variants. During the two years, plants of Lolium perenne formed stable layers of vegetation resistant to hydro-climatic conditions in western Romania, ensuring through fruition the continuity of the restored landscape. Biomass and/ or harvested seeds for optimum phytoremediation variant of slag and fly ash dump will be directed to different sectors after an assessment on metal accumulation in tissues.
Journal of Environmental Protection and Ecology Volume 16 Issue 3
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