Experiences on handling liquid substrates of high solid content in agricultural biogas-plants / W. Baader and R. Kloss
Mixtures of homogenous organic slurry and coarse vegetable matter are characterized by the tendency to separate owing to floatation and by the risk of accumulating of coarse, preferable fibrous matter, causing an uncontrolled flow through the total system followed o blockages. To overcome these fluidmechanical problems in practice preferably the horizontal canal-type digester with mechanical stirring device and the multiple chamber-type digester with hydraulic stirring by gas-displacement are used. As a newly developed solution to achieve in the digester the controlled flow of mixture which tend to separate, a completely filled up-flow loop-digester is described.
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