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Particulate and Dissolved Phosphorus Chemical Separation and Phosphorus Release from Treated Dairy Manure

Thanh H. Dao*,a and Tommy C. Danielb

a Henry A. Wallace Beltsville Agric. Res. Center, Animal Manure and By-Products Lab., Beltsville, MD 20705
b Crop, Soil, and Environmental Science Dep., 115 Plant Sci., Univ. of Arkansas, Fayetteville, AR 72701



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  		Fig. 1. Effect of total suspended solids (TSS) on the aggregation of manure particulates by polyacrylamide polymer C-1596, in combination with Al2(SO4)3·18H2O, FeCl3·6H2O, or Class C fly ash.

 


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  		Fig. 2. Effect of total suspended solids (TSS) on the aggregation of manure particulates by polyamine polymer C-581, in combination with Al2(SO4)3·18H2O, FeCl3·6H2O, or Class C fly ash.

 


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  		Fig. 3. Effects of co-application of cationic water treatment polymer C-1596 (0.1 g L-1) and mineral amendments on the equilibrium solution NH4–N and dissolved reactive P concentrations in two dairy manure suspensions containing initial total suspended solid concentrations of 30 and 100 g L-1.

 


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  		Fig. 4. Effects of co-application of cationic water treatment polymer C-581 (0.1 g L-1) and mineral amendments on the equilibrium solution NH4–N and dissolved reactive P concentrations in two dairy manure suspensions containing initial total suspended solid concentrations of 30 and 100 g L-1.

 




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The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
and Life Sciences Education		 Vadose Zone Journal
Soil Science Society of America Journal Journal of Plant Registrations The Plant Genome
Copyright © 2002 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.