Chemistry: fertilizers – Processes and products – Bacterial
Patent
1990-10-23
1996-06-18
Lander, Ferris
Chemistry: fertilizers
Processes and products
Bacterial
4352901, 4352902, 4352904, 71 13, 71 21, C05F 902, C05F 904
Patent
active
055273734
ABSTRACT:
A process includes the steps of: introducing, in a sequential manner and at a predetermined frequency, a substrate of organic waste substances by loading from above inside at least one cylindrical container of circular, polygonal or other cross-section having a vertical axis and at least one transverse horizontal dimension of which is small, in other words of the order of 1 m or even less, the vertical walls of which are at least partially made from a non-gastight material, such as a porous or aerated material; introducing into this pile or windrow lumbricids which will climb upwards; withdrawing, in a sequential manner and at a predetermined frequency, the lower substrate layer of previously lumbricid-composted organic material, this withdrawal causing the substrate to be lowered sequentially, under gravity, at a speed at most equal to that at which the lumbricids climb; and, removing the substrate of previously lumbricid-composted organic material. Such a process can be applied to the field of treating organic urban waste substances.
REFERENCES:
patent: 4135908 (1979-01-01), Widmer
patent: 4139640 (1979-02-01), Kipp, Jr.
patent: 4226832 (1980-10-01), Roumens
patent: 4236910 (1980-12-01), Norin et al.
patent: 4285719 (1981-08-01), Criss
patent: 4552726 (1985-11-01), Grappelli et al.
Lander Ferris
Naturba Inc.
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