Anaerobic digestion is often used in wastewater treatment plants to break down organic waste. The decomposition of sewage sludge from primary or secondary clarifiers produces digester gas with the appropriate conditions. This wastewater digester gas can vary in compositions but for the most part is methane-rich which can be used as an energy source.
Sludge produced during the treatment process is pumped to sealed digestion tanks for mixing which creates ideal conditions for methane gas production.
When there is an excess in digester gas, it needs to be flared off. There are two types of flares, an open flame on high tower and an enclosed flame on the ground.
Removing hydrogen sulfide (H2S) from biogas reduces sulfur dioxide emissions, equipment corrosion, and fouling.
Digester accessories include such products as flame trap assemblies, pressure relief valves, and more.
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