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Biogas Fermenters of Various Types

Jessica Nelson

When constructing a biogas plant, it is critical to select the appropriate biogas fermenter. An oval container is the best solution from a fluid and structural standpoint. This design, however, is relatively expensive, and it is typically limited to large sewage treatment facilities. The Chinese fixed dome design has a similar shape but is less expensive. The hemispherical CAMARTEC design is optimized for structural strength but does not make the best use of the necessary drilling. A cylinder with conical top and bottom is a simplified version of such a digester design. They are much easier to construct, and some are available as off-the-shelf units.