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The effect of temperature on dairy waste decomposition and the production of methane gasFeatured science projectScience project video

Conclusion

The hypothesis that the container stored at 34 °C will produce the most methane gas has been proven to be true.

Methane gas is obtained from the manure of animals when anaerobic decomposition of the manure takes place in the absence of oxygen. The methane gas can be used as a source of fuel for cooking stoves or to power a generator to produce electricity. The combination of carbon dioxide and methane is called biogas and is also a source of renewable energy.

Some power and gas companies in the United States, such as Pacific Gas and Electric and BioEnergy Solutions have commenced production of renewable energy using animal waste. Their biogas-to-pipeline injection project in Fresno County is an example of this advancement in energy production.

 

Also consider

Try to repeat the experiment using rotting vegetables or other organic material.

References

Treatment of dairy waste - http://extension.missouri.edu/publications/DisplayPub.aspx?P=WQ304

From waste to watts - http://www.kqed.org/quest/files/download/27/113a_fromwastetowatts.pdf

Biogas generator - http://www.re-energy.ca/pdf/biogas-generator.pdf
 

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Complexity level:
7
Project cost ($):
50
Time required:
3 hours for preparation, 5 days to conduct this science project
Material availability:
You will need to obtain samples of cow manure for this science project
Safety concerns:

None.