biogas and scum, which is denser?
Question
biogas and scum, which is denser?
Solution
Biogas and scum are both byproducts of the anaerobic digestion process.
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Biogas: Biogas is a type of biofuel that is naturally produced from the decomposition of organic waste. It is primarily composed of methane and carbon dioxide. Methane is lighter than air, making biogas less dense than air.
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Scum: Scum is the layer of floatable waste that rises to the top of septic tanks and anaerobic digesters. It is denser than both biogas and water, which is why it floats on top of the liquid in the tank.
Therefore, scum is denser than biogas.
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