Fertilizer and method for preparing the same

Details Fertilizer and method for preparing the same Fertilizer and method for preparing the same

1996-09-12

1998-07-28

Straub, Gary P.

Chemistry: fertilizers

Processes and products

Organic material-containing

71 15, 71 21, 71 23, C05F 300, C02F 1114

Patent

active

057857300

ABSTRACT:
A fertilizer comprising a dewatered solid agricultural nutrient is disclosed. A method for preparing this fertilizer is provided including the steps of providing a raw agricultural waste to be treated, adding to the raw agricultural waste an effective amount of a composition comprising a quaternized amino methylated polyacrylamide polymer for separating the raw agricultural waste into a mixture having a separate clarified liquid portion and a separate dewatered nutrient solids portion, wherein the separated dewatered nutrient solids portion is a fertilizer, mixing the composition with the raw agricultural waste to facilitate the separation of the raw agricultural waste into the mixture, and subjecting the mixture to at least one mechanical separation means for segregating the separated clarified liquid portion from the fertilizer. An aqueous system comprising water, raw agricultural waste and a composition comprising a quaternized amino methylated polyacrylamide polymer is also disclosed.

REFERENCES:
patent: 4179424 (1979-12-01), Phillips et al.
patent: 4759856 (1988-07-01), Farrar et al.
patent: 4943378 (1990-07-01), Flesher et al.
patent: 5132023 (1992-07-01), Kozakiewicz et al.
patent: 5531907 (1996-07-01), Williams et al.
patent: 5545688 (1996-08-01), Huang

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