Chemistry: fertilizers – Processes and products – Organic material-containing
Patent
1994-09-12
1995-11-21
Lander, Ferris
Chemistry: fertilizers
Processes and products
Organic material-containing
71 25, 71 62, 71 63, 71903, 106706, 588258, C05D 302, C05D 304, C05D 900
Patent
active
054682770
ABSTRACT:
This agricultural field utilization of tonnage quantities of a composite powder of coal combustion fly ash containing desulfurization residue prevents the escape of fugitive dust from the powder and effectively manages any cementitious tendencies of the powder, while raising the pH of the soil and adding plant nutrient elements to the soil. The powder is added to water at a weight ratio of 10:8-20 in an enclosed tank having a capacity of at least about 2,000 gallons. Mixing is conducted for at least about 5 minutes to form a soil treatment slurry composition easily flowable through a pipe of about 1-inch diameter. The treatment composition is applied on the agricultural soil before the composition hardens to a cementitious state, preferably by spraying directly from the mixing tank. The coating thickness is sufficient to amend just the top portion of the agricultural soil that supports plant growth, to elevate the pH above about 6.5 and not elevate the total plant-available boron above about 25 pounds per acre. The applied composition is worked into the top portion of the soil either before or after the composition has hardened to any cementitious state.
REFERENCES:
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Adriano, D. C. et al., "Utilization of Fly Ash and Other Coal Residues in Terrestrial Ecosystems: A Review," in Journal of Environmental Quality, 1980, 9:333-344. (No month).
Walker, W. J. et al., "Elemental Composition of Barley and Ryegrass Grown on Acid Soils Amended With Scrubber Sludge," Journal of Environmental Quality, 1980, 9:27-30 (No month).
Ransome, L. S. et al., "Soybean Growth and Boron Distribution in a Sandy Soil Amended with Scrubber Sludge," Journal of Environmental Quality, 1987, 16:171-175 (No month).
Mattigod, S. V. et al., "Geochemical Factors Controlling the Mobilization of Inorganic Constituents from Fossil Fuel Combustion Residues: I. Review of the Major Elements," Journal of Environmental Quality, 1990, 19:188-201 (no month).
Early, L. E. et al., "Geochemical Factors Controlling the Mobilization of Inorganic Constituents from Fossil Fuel Combustion Residues: II. Review of the Minor Elements," Journal of Environmental Quality, 1990, 19:202-214 (no month).
Montain Paul D.
Rehbein Gerald L.
Baker Robert C.
Lander Ferris
Proehl Jeffrey A.
Rehbein, Inc.
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