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Name: Rikka
Status: Student
Age: 20s
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How to recognise the sulfur bacteria who make a bad smell like H2S from the waste ?

The simplest way to detect these bacteria is: use your nose. The human nose is very sensitive to the smell of H2S and can detect it at very low levels. But i guess your question is: which bacteria are producing these gases? In order to answer that you'd have to culture the bacteria present in the waste, separate and select the different species to purity, and then detect which ones thrive on sulphurous compounds. There are classical biochemical tests to do that. Most of these are based on the production with H2S that will form a black deposit in the presence of lead (PbS).

Trudy Wassenaar

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