(NL9101873-A)      Organic material is composted in an alternating series of aerating and fractionating steps. The material is first aerated and then sepd. into a first coarse fraction and a second less coarse fraction. The two fractions are then separately reaerated. The aerated less coarse material is sepd. into a third fraction of fine material and a fourth fraction of the finest material. The fine material is again aerated and the finest material discharged as compost.    USE/ADVANTAGE -   The process composts organic waste with few contaminants, e.g. vegetable, fruit and garden waste. The composting takes place without odour or other environmental problems.    (NL9101874-A)      Organic material is composted in an alternating series of aerating and fractionating steps. The material is 1st aerated and then sepd. into a 1st coarse fraction and a 2nd less coarse fraction. The two fractions are separately reaerated and the aerated less coarse material is sepd. into a 3rd fraction of fine material and a 4th fraction of the finest material. The fine material is again aerated and the finest material discharged as compost.    USE/ADVANTAGE -   The process composts oranic waste with few contaminants, e.g., vegetable, fruit and garden waste. The composting takes place without odour or other environmental problems.    (EP541184-B1)      Organic material is composted in an alternating series of aerating and fractionating steps. The material is first aerated and then sepd. into a first coarse fraction and a second less coarse fraction. The two fractions are then separately reaerated. The aerated less coarse material is sepd. into a third fraction of fine material and a fourth fraction of the finest material. The fine material is again aerated and the finest material discharged as compost.    USE/ADVANTAGE -   The process composts organic waste with few contaminants, e.g. vegetable, fruit and garden waste. The composting takes place without odour or other environmental problems.