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RECORD NUMBER: 42 OF 68

OLS Field Name OLS Field Data
Main Title Mathematical Modeling of Nutrient - Transport.
Author DiGian, Francis A. ;
CORP Author Massachusetts Univ., Amherst. Water Resources Research Center.
Year Published 1971
Report Number Pub-17; OWRR-B-005-MASS; 01121,; B-005-MASS(3)
Stock Number PB-225 127
Additional Subjects ( Nutrients ; Mass transfer) ; ( Water chemistry ; Mass transfer) ; Mathematical models ; Dredging ; Surface waters ; Sediment transport ; Deposits ; Diffusion ; Porosity ; Turtuosity ; Algae ; Sterilization ; Sediment water interactions
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-225 127 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 40p
Abstract The derivation of the mathematical models for nutrient transport in deposit-water systems is based upon the mode of physical mass transfer via diffusion and adsorption. The two primary objectives in seeking a simple but valid model of the system are: To obtain a physical system constant, i.e. an 'effective' diffusion coefficient which can be used to estimate the flux of nutrients through the deposit and the depth of penetration; and to examine the rate-limiting step(s) of nutrient transport by modeling the interplay of 'interfacial resistance' and pore diffusion and adsorption. The models described are: Pore diffusion through interstitial water of deposit; interfacial mass transport; diffusion with simultaneous adsorption; and release of nutrients via diffusion. This last model of simultaneous adsorption and diffusion may be most useful in gaining an understanding of nutrient interchange.
PUB Date Free Form 1971,
Category Codes 8H; 13B; 68D; 48G
NTIS Prices PC A03/MF A01
Document Type NT
Cataloging Source NTIS/MT
Control Number 326568913
Origin NTIS
Type CAT