## 5 Discussion and Recommendations Resulting from the Performance of Multicriteria Analysis
Moreover, the bentonite occurring in montmorillonite rocks can be used in soil fertilization, due to its moisture retention properties and the slow release of fertilizer elements. As a consequence, the bentonite ensures greater flexibility and improvement of the soil strength as well as increased water impermeability. Another solution may be the use of loamy waste raw materials as feed additives. The use of aluminosilicates for the feeds, e.g., kaolin of FKW type or zeolite of AA type, in the feeding of broilers and breeding of laying hens, has a positive impact on production rates, as well as on the quality of eggshells [21; 22]. The Krzeniow landfill, which is located in the third position, has waste in the form of gangue with basal overgrowths and a 0-8 mm basalt fraction. Mainly, this waste should be used in agriculture as basalt meal. Meals of this type fulfil the function of a measure improving the properties of soil due to the relatively low content of minerals (main and trace). The distinct advantages of basalt meals include non-toxicity, inability to overdose, not being subject to elution by groundwater and not having a shelf life or maximum storage period [29]. \begin{table}
\begin{tabular}{c c c} \hline \hline
**Name of the** & **Waste** & **Hierarchy of Potential Use** \\ \hline \multirow{6}{*}{**Grabina Si.**} & & \multicolumn{2}{c}{for the manufacture of hydro-technical stones} \\  & \multirow{3}{*}{weathered granite} & for the manufacture of light aggregates \\  & & for the manufacture of aggregates of the inferior quality \\  & & granite rock meal—for improvement of soil properties \\ \cline{2-3}  & & sorbent-fertilizer of montmorillonite rocks for reclamation \\  & & use of bentonite for soil fertilization \\  & & use of kaolin as a feed additive \\  & & use of bentonite clay in the food industry \\  & & (for storing fruits and vegetables) \\ \hline \multirow{6}{*}{**Gniewkow**} & \multirow{3}{*}{\
\begin{tabular}{c} granite saprolite \\ \end{tabular} } & for the manufacture of light aggregates \\  & & granite rock meal—for improvement of soil properties \\  & & for the manufacture of light aggregates \\ \cline{2-3}  & & use of bentonite for soil fertilization \\  & & use of kaolin as a feed additive \\  & & sorbent-fertilizer of montmorillonite rocks for reclamation \\  & & use of bentonite clay in the food industry \\  & & (for storing fruits and vegetables) \\ \hline \multirow{6}{*}{**Krzeniów**} & \multirow{3}{*}{
\begin{tabular}{c} gangue with \\ overgrowths of \\ weathered basalt \\ basalt-fraction 0–8 mm \\ \end{tabular} } & \multirow{3}{*}{rock (basalt meal) for improvement of soil properties} \\  & & basalt-fraction 0–8 mm \\ \hline \multirow{6}{*}{**Lubien**} & \multirow{3}{*}{clay} & use of bentonite clay in the food industry \\  & & (for storing fruits and vegetables) \\ \cline{1-1}  & & sorbent-fertilizer of montmorillonite rocks for reclamation \\ \cline{1-1}  & & use of bentonite for soil fertilization \\ \cline{1-1}  & & use of kaolin as a feed additive \\ \hline \multirow{6}{*}{**[PERSON]**} & \multirow{3}{*}{clay} & use of bentonite clay in the food industry \\  & & (for storing fruits and vegetables) \\ \cline{1-1}  & & & use of bentonite for soil fertilization \\ \cline{1-1}  & & use of kaolin as a feed additive \\ \hline \multirow{6}{*}{**[PERSON]**} & \multirow{3}{*}{overburden} & use of bentonite clay in the food industry \\  & & (for storing fruits and vegetables) \\ \cline{1-1}  & & & use of bentonite for soil fertilization \\ \cline{1-1}  & & & use of kaolin as a feed additive \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Recommendations of potential possibilities for using waste regarding results of overall priority calculations and weights of local preferences with respect to potential waste uses.