Winogradsky Column (team 12)

                     

                                         Winogradsky Column (team 12)

                                                      Ntavaros Christos- Neofytou Marina

Hello Winobloggers,we are a team  from the University of Thessaly, Greece and our experiment of Winogradsky column took place in Volos.We took sediment and seawater from Anayros beach.We used a plastic bottle (1,5L), seawater (~500ml), an egg, pieces of newspaper and  sediment from the beach.

day 1 

At the first day of our experiment we placed our column in a bright spot and sealed.

 

 

day 2

After 3 weeks we noticed some changes in the colour of the water . The black color of the sediment  is caused by the presence of FeS from the anaerobic respiration.

 day 3

In a week later, sediment became little darker.

 day 4

Finally at the last day, we can see the black colour of the sediment in the whole bottle and the cloudy water because of the anaerobic conditions in the column.