Szukana fraza: [Abstract = "Two patterns of the distribution of elements between solid and liquid parts depending on the sampling location were found. Samples taken outside meromictic zone had comparable high concentration of iron in the sludge associated with its low amounts in pore water \- and on the contrary\: low concentration of alum in sludge associated with its high amount in pore water. Samples from the meromictic zone characterized reversed relations."]