Turn pig manure into electricity

A study of the transformation of pig manure into clean energy has been published to meet two important criteria: the highest energy production efficiency and lowest emission generation.

The stinking waste of thousands of pigs in pig farms can pollute rivers, lakes, and groundwater and create clouds of methane and carbon dioxide in the sky. Finding a solution to convert this waste into clean energy is a very meaningful job.

A Danish research team analyzed different ways of handling them after applying them to some domestic farms. On these farms, pig manure is used to generate electricity by systems such as anaerobic digestion or incineration.

When untreated, pig manure can create a true environmental disaster.

In anaerobic resolution, the bacteria decompose the waste in an oxygen-depleted tank, causing the material to heat up, generating methane gas. This gas is used as fuel to generate energy to turn a generator turbine.

As for the incineration method, the waste is concentrated in solid form, which will be burned to boil water and operate a steam turbine.

The research team concluded by Trakarn Prapaspongsa, Aalborg University: the anaerobic resolution method has positive results, achieving higher energy efficiency. However, if taking into account the reduction of greenhouse gas emissions, the method of using the crematorium is the first choice.