Fermentation processes with biogas recovery
are conducted in airtight, closed fermentation chambers, which
considerably facilitates the solution of problems related to odor
neutralization. In the case of uncontrolled emissions of odor from
the methane fermentation process, it is possible to use commercially
available deodorizing agents such as Phytoncide, Munizyme,
NaOCl and many others. The use of such chemical agents is not
recommended as the main method of odor neutralization and it
does not solve the air pollution problem, but only masks onerous
odors. These preparations, however, can be successfully used in
emergency situations, e.g. if the integrity of the biogas recovery
installation is lost (Shao et al., 2014).