| 摘要 |
<p>The device for continuous dry methanisation, in a fermenter comprising a closed tank, comprises: - a means (110) for fermenting thick material comprising at least 17 % dry matter, in at least one compartment of said tank, and - a means (108) for injecting, via at least one chimney that descends through at least one of the compartments, pressurised gas close to the bottom of the compartment, configured to create, by the rising of the injected gas through the thick material, a convective movement in the thick material around the chimney, stirring the material, in particular that which is found at the bottom of the compartment. In embodiments, the tank comprises a first compartment into which the thick material is introduced and a second compartment into which the hydrolysed thick material flows after hydrolysis and acidogenesis in the first compartment, methanogenesis taking place in the second compartment.</p> |
