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Analiza budowy geologicznej województwa wielkopolskiego pod kątem wyboru obszarów preferowanych do lokalizacji składowisk odpadów

Grabowski D., Sikorska-Maykowska M., Gabryś-Godlewska A., Andrzejewska-Kubrak K.

Przegląd Geologiczny

2009

Vol. 57, nr 1

46-55

Areas preferred for location of waste disposal sites in the Wielkopolska voivodeship were determined on the basis of analyses of geological and environmental conditions, according to directives in Regulation of the Minister of Environment of 24th March 2003 on localization, construction, and liquidation for particular types of waste storage. Disposal possibilites of 3 fundamental types of wastes were defined: neutral (O), dangerous (N) and others (K). Crucial meaning for this classification have isolation properties and thicknesses of rocks in the subsurface zone (top not deeper than 2.5 m). The most favorable areas preferred to waste disposal sites are located in central and southern parts of Wielkopolska voivodeship and their distribution points out to the direct relation to geological framework, i.e., occurrence of the Variegated Clays Formation on the surface or in the near-surface zone. Natural geological barrier composed of these clays fulfills, in most of the cases, requirements for waster storage: other than dangerous and neutral (K), neutral (O), and, at the proper thickness, storage of dangerous waste (N). Resultant map showing distribution of the most suitable sites is a very useful material for making provincial and district waste management plans as well as for planning, determining, and searching the best sites for construction of new municipal disposal sites.

Wyznaczanie i ocena izolacyjności naturalnej bariery geologicznej w procesie cyfrowego przetwarzania danych geologicznych

Gabryś-Godlewska A., Gliwicz T., Grabowski D.

Przegląd Geologiczny

2007

Vol. 55, nr 5

416-423

Numerical analysis of data from boreholes, applied during compilation of the "waste storage" database for the Geoenvironmental Map of Poland in 1 : 50,000 scale, allows quick and objective retrieval of comparable results. The goal of the borehole analysis is to find the proper insulating layers conforming to the waste storage standards, according to criteria specified in the Proclamation of the Ministry of the Minister of Environment dated on 24th March, 2003. The final result of such analysis is locating a natural geological barrier for depositories of neutral (O), hazardous (N) or other (K) wastes, with the most important insulative characteristics (depth of layer top, its thickness and lithology, presence of glacitectonic disturbances). The numerical analysis of data consists of 8 stages. Stage I assigns lithology of particular stratum to relevant insulation category (O, K, N). Stages II-III involve combining of the adjacent strata into stacks with the same or different insulation category and calculating their thickness. After excluding stacks thinner than 1 m (stage IV), checking the thickness of layers conforming to the hazardous waste storage standards (V) and taking into account the glacitectonic disturbances within the analyzed layers (stage VI), a natural geological barrier is delineated (stages VII-VIII). The practical advantage of the analysis is that the method is fast and gives unbiased, repeatable results.