A digester tank is a large tank where anaerobic digestion takes place. Anaerobic digestion is a process in which micro-organisms break down organic materials like cow manure, food waste, and other digestible organic waste in a closed space where there is no oxygen. The process produces a biogas consisting of methane, carbon dioxide, hydrogen sulfide, and traces of other “contaminant” gases, which can be used directly in combined heat and power gas engines, or upgraded to natural gas–quality bio methane. The nutrient-rich digestate that is also produced can be used as fertilizer.
Digester tanks come in different sizes and styles, depending on their use. For example, a household digester for a single family can have a volume of less than one cubic meter, whereas an industrial-scale unit can easily surpass 5,000 cubic meters. Most anaerobic digesters need to be insulated so that the proper operating temperature can be maintained regardless of the outside temperature.
Digester tanks can also be used in the food and beverage industry, where they are used to store highly viscous and corrosive sludge. The Eddy Pump is ideal for handling the highly viscous and corrosive sludge that is stored in these tanks. The same process can also be used to clean out the digester tanks used in the food and beverage industry.
In summary, a digester tank is a tank where anaerobic digestion takes place. It is used to break down organic materials like cow manure, food waste, and other digestible organic waste in a closed space where there is no oxygen. The process produces a biogas consisting of methane, carbon dioxide, hydrogen sulfide, and traces of other “contaminant” gases, which can be used directly in combined heat and power gas engines, or upgraded to natural gas–quality bio methane. The nutrient-rich digestate that is also produced can be used as fertilizer. Digester tanks come in different sizes and styles, depending on their use, and can also be used in the food and beverage industry to store highly viscous and corrosive sludge.
