THE EFFECTS OF INDUSTRIAL WASTE LANDFILLS ON SOIL QUALITY. CONTAMINATED SOIL. CASE STUDY IN SALAJ COUNTY
THE EFFECTS OF INDUSTRIAL WASTE LANDFILLS ON SOIL QUALITY. CONTAMINATED SOIL. CASE STUDY IN SALAJ COUNTY

Summary/Abstract: Soil is the superior part of the lithosphere, with a continuous evolution under the pedogenetic factors, representing the superficial layer of the Earth, capable to support the vegetable life. Unlike the other environmental factors, the soil has a lower self-cleaning capacity, and the standing time of the pollutant in the soil is relative bigger. The researches and studies presented in this essay are referring to the soils affected by the chemical pollution, caused by the industrial waste landfills. The industrial activities exert a continuous pressure on the soil through the pollutants emission, the waste deposit activities, with the effect on the acid level of the soil, supra-fertilization of the soil, different heavy metals accumulation in the soil, such as lead, copper, zinc, cadmium, which can affect the quality of the soil. Regarding this, all the studies made for the industrial waste landfills are concentrating on the heavy metals concentration analysis, trough spectorphotometric methods (atomic absorption spectrophotometry) and other laboratory analysis methods. The elimination of all the industrial waste landfills with potential risk on the environmental factors, regards the recovery process of useful wastes, and also the works for ecological reconstruction of the closed waste landfills in order to reintroduce them in the economical circuit.

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