0221219-A1 is referenced by 3 patents and cites 5 patents.

The biological improvement is obtained by aerobic fermentation of a biomass resulting from seeding a selection of freeze-dried bacteria with a mixture containing: - from 40 to 70% by weight of dry purification sludge solids, - from 25 to 50% by weight of a carbonaceous support, - from 5 to 15% by weight of calcium carbonate, - from 5 to 20% by weight of natural phosphate, - from 5 to 15% by weight of building plaster, and - from 2 to 10% by weight of maize starch.

Title
Biological agricultural soil additive obtained from sewage sludge, and method for its preparation.
Application Number
EP19850402101 19851031
Publication Number
0221219 (A1)
Application Date
October 31, 1985
Publication Date
May 13, 1987
Inventor
Biez Georges
FR
Assignee
Biez Georges
IPC
C05F 07/00
C05F 17/00
C05F 07/00
C05F 17/00
C05F 07/00
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