New Technology For Waste Fluorescent Lamps
Treatment In Lithuania – Characterisation And
Environmental Impact
Author(s)
I. Urniezaite, D. Jankunaite & E. Griskonis
Abstract
Treatment of waste fluorescent lamps, which are widely used all over the world,
is a very important field of environmental research. Due to the presence of
mercury vapour in these lamps, this kind of waste requires special attention to its
disposal. This study aims to evaluate the environmental impact of fluorescent
lamps and to describe the principal aspects of new technology used for their
treatment in Lithuania.
The main parameters in this treatment process are mercury and manganese
concentrations in the treatment of residual waste of fluorescent lamps. Mercury
concentration in fractionated treatment residuals was determined by
complexonometric titration and the manganese concentration was determined by
the atomic absorption method. The results, obtained in the study, show
manganese and mercury content in fluorescent lamp treatment products and the
main physical parameters of these treatment products. This study revealed that
concentrations of metallic mercury and water soluble mercury salts in the
examined samples are within the permitted limits. Also, this paper presents
residuals X-ray analysis results.
Results of this study show that the products of waste fluorescent lamps
treatment can be treated as environmentally friendly, according to their solubility
in water. It gives an opportunity to look for more possibilities of this product’s
disposal. As the presented treatment technology is relatively new and used to
treat only small amounts of waste fluorescent lamps, this technology could be
modified for larger productivity. Studies of this technology should go further in
the aspects of different ways of treating the disposal of products, development of
technology, etc.
Keywords: waste, fluorescent lamps, complexonometric titration, atomic
absorption, xrd analysis, hazardous waste, heavy metals, mercury.
Keywords
waste, fluorescent lamps, complexonometric titration, atomic
absorption, xrd analysis, hazardous waste, heavy metals, mercury.
Related Book
Other papers in this volume
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