SIZE AND PHASE FRACTIONATION OF WATER COMPONENTS BY MEMBRANE FILTRATION - DISTRIBUTION PATTERNS FOR ARSENIC, IRON AND MANGANESE IN AQUEOUS EFFLUENTS OF TIN-ORE SETTLING PLANT
R. Wennrich et al., SIZE AND PHASE FRACTIONATION OF WATER COMPONENTS BY MEMBRANE FILTRATION - DISTRIBUTION PATTERNS FOR ARSENIC, IRON AND MANGANESE IN AQUEOUS EFFLUENTS OF TIN-ORE SETTLING PLANT, Fresenius' journal of analytical chemistry, 359(2), 1997, pp. 161-166
The possibility of on-line membrane size-fractionation of water compon
ents and simultaneous separation of particulate and dissolved matter a
t each filtration stage has been shown. The distribution patterns have
been studied for As, Fe and Mn in effluent samples of tin ore tailing
s (Altenberg, Saxony, Germany). The seepage composition is characteriz
ed by high concentrations of Fe and As. The particulate and dissolved
components were separated in five fractions between 0.025 and 8 mu m.
It was suggested that the distribution patterns of As and Fe compounds
depend on the chemical conditions at the sampling sites. Manganese ex
ists mainly in solvated forms in the liquid fractions.