(DE19513560-A1)      Absorbent granules for horticultural use, are composed of diatomaceous earth mixed with a urea formaldehyde resin in an amount of 20-50 pts. resin to 100 pts. earth.    Absorbent granules are produced by mixing damp diatomaceous earth with resin which contains an acid catalyst. Granules are shaped by extruding and then dried at 95-180 deg. C. The earth is initially taken from filter cakes obtained in a beer- or wine-making plant.    USE -   Used as substitute soil for hydroponic cultures and pot plants. Also, used for resorption of liquid pools of water or oil in domestic or industrial locations.    ADVANTAGE -   Water retention is at least 8% and the air vol. is above 20%. Structural stability is above 80% and the pH is 3.5 to 8. The permeability is above 15 (pref. above 25) darcys.    (NL1000164-C2)      Absorbent granules for horticultural use, are composed of diatomaceous earth mixed with a urea formaldehyde resin in an amount of 20-50 pts. resin to 100 pts. earth.    Absorbent granules are produced by mixing damp diatomaceous earth with resin which contains an acid catalyst. Granules are shaped by extruding and then dried at 95-180 deg. C. The earth is initially taken from filter cakes obtained in a beer- or wine-making plant.    USE -   Used as substitute soil for hydroponic cultures and pot plants. Also, used for resorption of liquid pools of water or oil in domestic or industrial locations.    ADVANTAGE -   Water retention is at least 8% and the air vol. is above 20%. Structural stability is above 80% and the pH is 3.5 to 8. The permeability is above 15 (pref. above 25) darcys.    (BE1008676-A5)      Absorbent granules for horticultural use, are composed of diatomaceous earth mixed with a urea formaldehyde resin in an amount of 20-50 pts. resin to 100 pts. earth.    Absorbent granules are produced by mixing damp diatomaceous earth with resin which contains an acid catalyst. Granules are shaped by extruding and then dried at 95-180 deg. C. The earth is initially taken from filter cakes obtained in a beer- or wine-making plant.    USE -   Used as substitute soil for hydroponic cultures and pot plants. Also, used for resorption of liquid pools of water or oil in domestic or industrial locations.    ADVANTAGE -   Water retention is at least 8% and the air vol. is above 20%. Structural stability is above 80% and the pH is 3.5 to 8. The permeability is above 15 (pref. above 25) darcys.