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RECORD NUMBER: 2 OF 3

Main Title Fluoride emissions from phosphoric acid plant gypsum ponds /
Author King, William Richard, ; King, W. R. ; Ferrell., J. K.
CORP Author North Carolina State Univ., Raleigh.;Environmental Protection Agency, Washington, D.C. Office of Research and Development.
Publisher U.S. Environmental Protection Agency, Office of Research and Development,
Year Published 1974
Report Number PB 241144; EPA-R-800950; EPA-ROAP-21AFA-075; EPA/650/2-74-095
Stock Number PB-241 144
OCLC Number 37612386
Subjects Phosphoric acid industry. ; Phosphogypsum.
Additional Subjects Air pollution ; Fluorides ; Industrial wastes ; Phosphoric acids ; Ponds ; Lagoons(Ponds) ; Evaporation ; Emission ; Estimates ; Wind velocity ; Manufacturing ; Industrial plants ; Computerized simulation ; Gypsum ; Air water interactions ; Phosphoric acid plants
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101LLOA.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJAD  EPA 650/2-74-095 Region 3 Library/Philadelphia, PA 02/11/2000 DISPERSAL
EJBD ARCHIVE EPA 650-2-74-095 Headquarters Library/Washington,DC 07/22/2013
ELBD ARCHIVE EPA 650-2-74-095 AWBERC Library/Cincinnati,OH 05/03/2022
ESAD  EPA 650-2-74-095 Region 10 Library/Seattle,WA 10/17/2003
NTIS  PB-241 144 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vi, 316 pages : illustrations, maps, graphs ; 29 cm
Abstract The report gives results of a study of fluoride emissions from ponds receiving process water from wet-process phosphoric acid plants. Volatile fluorine compounds accumulate in water used in the manufacture of phosphoric acid by the wet-process method. This process water is routed to ponds for cooling and eventual re-use. While in the ponds, some of the fluorine compounds evaporate, becoming air pollutants. Emission estimates were developed from the pond-to-air mass transfer coefficient and the vapor pressure of fluorine over pond water. These estimates were tested by measurements of ambient-air, fluorine-compound concentrations downwind of the ponds. Comparing the measured ambient air concentrations with concentrations predicted from the emission estimates and a standard atmospheric pollutant dispersion model demonstrated the validity of the emission estimates.
Notes "EPA-650/2-74-095." "PB-241 144." Includes bibliographical references (pages 116-118).
Place Published Washington, D.C.
Supplementary Notes Environmental protection technology series rept.
Corporate Au Added Ent United States. Environmental Protection Agency. Office of Research and Development.
Title Ser Add Ent Research reporting series. Environmental protection technology ; EPA-650/2-74-095.
NTIS Title Notes Final rept. Sep 72-Jul 74.
PUB Date Free Form 1974
Category Codes 13B; 07A; 99B; 68A
NTIS Prices PC A15/MF A01
BIB Level m
Medium unmediated
Content text
Carrier volume
Cataloging Source OCLC/T
Control Number 326603498
OCLC Time Stamp 20220425213021
Language eng
SUDOCS Number EP 1.23/2:650/2-74-095
Origin OCLC
Type MERGE
OCLC Rec Leader 01671cam 2200421Ia 45010