Digester

For the precursor to the pressure cooker, see Steam digester.

A digester is a vessel where chemical or biological reactions are carried out, which may involve the use of heat, enzymes or solvent.^[1] They are used in different types of process industries, such as in the production of biogas.^[2][3] Digesters are referred to as reactors in some applications.^[4]

Processes where digesters are used

• Anaerobic digestion
• Bayer process
• Kraft process
• Soda process
• Sulfite process