(WO9310059-A1)      In biological conversion (compositing) of organic matter into biomass by treatment in a closed environment by fine shredding and mixing, (a) treatment is carried out in at least two separate closed chambers; (b) the organic matter is treated to an intermediately converted stage in the first chamber; (c) part of the intermediately converted material is transferred from the first to the second chamber for final compositing; and (d) fresh organic matter is treated in the first chamber in the presence of the rest of the intermediately converted material.    ADVANTAGE -   Organic waste can be converted into useful biomass by a short quasi-continuous treatment at the location at which the waste occurs.enc    (JP6504518-W)      (A) In biological conversion (composting) of organic matter into biomass by treatment in a closed environment by fine shredding and mixing. (a) treatment is carried out in at least two separate closed chambers; (b) the organic matter is treated to an intermediately converted stage in the first chamber; (c) part of the intermediately converted material is transferred from the first to the second chamber for final composting; and (d) fresh organic matter is treated in the first chamber in the presence of the rest of the intermediately converted material.    (B) Appts. for carrying out the process is also claimed.    ADVANTAGE -   Organic waste can be converted into useful biomass by a short quasi-continuous treatment at the location at which the waste occurs.    (EP543097-B1)      A process for biological conversion (composting) organic substances into biomass, in which said organic substances are treated in a substantially closed environment for a time by comminuting and mixing, this treatment being undertaken in at least two substantially closed chambers separate from each other, the treatment in said first chamber involving a partial conversion of the introduced inorganic substances into biomass and a portion of the partially converted material being transferred from the first chamber into said second chamber for composting, characterised in that the transfer of the material from said first chamber into said second chamber occurs after the temperature in said chamber has attained a certain value characterised for the conversion of the material treated in said chamber up to a certain intermediate stage, and that into said first chamber new organic substance are introduced for treatment in the presence of a remaining portion of the material converted up to said intermediate stage.