hello, we are two undergraduate students,Lazaridou Polixeni and Vaggelis Kydonakis,from Department of Ichthyology and Aquatic Environment,Volos. We are doing an experiment with the Winogradsky column. In the column we used a plastic bottle 1.5 lit, seawater 500 ml, an egg, an amount of sediment from the beach of Anavros (a region of Volos) and pieces of newspaper. During the first day the column was placed in a dark place, at room conditions.
10th day: The water became darker. This is due the presence of FeS which is produced by anaerobic microorganisms present in the column. In the sediment we can see blackish colour because of the production of H2S from anaerobic reactions.
10th day: The water became darker. This is due the presence of FeS which is produced by anaerobic microorganisms present in the column. In the sediment we can see blackish colour because of the production of H2S from anaerobic reactions.
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