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OLS : Record

RECORD NUMBER: 19 OF 32

Main Title Movement of Phosphorus in Soil.
Author Enfield, C. G.; Kerr, R. S.; Ellis, Jr, R.;
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK. ;Kansas State Univ., Manhattan.
Year Published 1984
Report Number EPA-600/D-84-091;
Stock Number PB84-177922
Subjects Phosphorus; Soil water; Soil chemistry; Sorption; Chemical reactions; Precipitation(Chemistry); Iron; Aluminum; Calcium; Mathematical models; Reaction kinetics; Path of pollutants
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB84-177922 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 38p
Abstract The disappearance of phosphate from soil solution results from a fast initial sorption reaction followed by a much slower transformation of phosphate to amorphous and crystalline precipitates of iron, aluminum, and calcium. The kinetics of the transformation have been determined at a phenomenological level and often shown to follow Elovich or first-order equations. Kinetic models are applied to laboratory data to describe step response of phosphorus and quasi-steady state response of phosphorus in soil columns. Results indicate a first-order kinetic equation gives an adequate description of phosphorus movement in soil columns when the water velocity is known.
Supplementary Notes Prepared in cooperation with Kansas State Univ., Manhattan.
PUB Date Free Form 1984
Category Codes 2A; 8M; 98A#; 48E#; 68D
NTIS Prices PC A03/MF A01
Primary Description 600/15
Document Type NT
Control Number 417427626
Cataloging Source NTIS/MT
Origin NTIS
Type CAT


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