THE EFFECT OF BIOSOLIDS ON MEDICAGO SATIVA AND FESTUCA ARUNDINACEEA PLANTS PHYTOREMEDIATION PROCESS OF WASTE DUM
Keywords:
mining waste dump, biosolids, grass cover, phytoremediationAbstract
The storage of waste dump gravely deteriorates the soil’s physical, chemical and
biological properties, both in the storage area and the surrounding zones. In time,
serious perturbations may occur in the biocenosis from the surrounding ecosystems,
through the sweeping away of the inorganic matter or through precipitations. The
main problem in this case is to find the most suitable phytoremediation method for
these waste dumps, by sowing plant species (grasses), in order to stop the erosion
generated by wind and rain. Establishing a herbaceous “carpet” , in time, is very
difficult, because the waste dump contains no organic matter, has a weak water
retaining capacity and has a high bareness index. The purpose of this study was the
experimentation of a method of cultivating the waste dumps using alfalfa, fescue and
biosolids as fertilizers.
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