| 摘要 |
<p>The invention relates to a pre-treatment of waste materials before their anaerobic digestion, in apparatuses for treating urban garbage. According to the invention, a mixture of waste material and water is subjected to shearing forces thereby obtaining a crude mixture; after having removed heavy particles from the mixture, the process provides for removing small dimension particles of low density material, by evacuating a surface layer of the crude mixture or of the suspension obtained therefrom</p> |
