Effective mixing of the anaerobic digester contents is important for process stability. Mixing maximizes gas production and minimizes scum and foam formation. Additionally, it prevents solids deposition in the digester, which can reduce the active volume of the digester and result in expensive removal costs.

Doda manufactures a variety of propeller mixers suited for the most challenging applications. The unique self-cleaning propeller is designed for applications where the treated mass must be kept in a homogeneous state without dispersing the characteristic gasses used for biogas.