UASB digester

Optimal sludge retention through newly developed high-performance separator

UASB or EGSB digesters use gas separators and

overflow weirs in the upper digester section to remove the biogas from the digester and retain the biomass in the digester.

With the development of a new type of separator, problems such as

• Clogging of the gas separator by fibrous material, oil and grease
• Inaccurate leveling of the overflow weirs and the associated poor distribution of the discharge over the fermenter surface
• Corrosion in the contact zone between wastewater and air at the fermenter overflow, etc.

are avoided.

Emphasis on the simple design with favourable hydraulic characteristics for optimum of sludge retention.