Volos_Group 10_Day 20_Dark
Hello! The 20th day of our experiment we did not observe significant changes. The odor became more noticeable due to the presence of hydrogen sulfide (H
2S). The lower layer of the sediment became darker due to the presence of organic matter in the Winogradsky column. The color of the upper layer in the sample became more lighter than the previous days.
2S). The lower layer of the sediment became darker due to the presence of organic matter in the Winogradsky column. The color of the upper layer in the sample became more lighter than the previous days.
More information will be posted when other changes occur!
How does the organic matter make the column darker? Do you have previous picture to compare to see in what way the water column became lighter?
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