Record Display for the EPA National Library Catalog

RECORD NUMBER: 9 OF 22

Main Title Mathematical Model of Tertiary Treatment by Lime Addition.
Author Seide, L. ; Pate, K. ;
CORP Author General American Transportation Corp., Niles, Ill. General American Research Div.
Year Published 1969
Report Number DI-14-12-416; 04547,; 17010-09/69
Stock Number PB-190 170
Additional Subjects ( Water pollution ; Phosphorus compounds) ; ( Calcium oxides ; Sewage) ; ( Wastes(Industrial) ; Calcium oxides) ; ( Phosphates ; Water pollution) ; Costs ; pH ; Chemical precipitation ; Mathematical models ; Computer programs ; Secondary water treatment ; Sewage treatment ; Waste water treatment
Holdings
Library Call Number Additional Info Location Last
Modified		 Checkout
Status
NTIS  PB-190 170 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 80p
Abstract
The status of phosphorus removal from secondary effluents by lime addition is presented. Based on the empirical information available, a mathematical model of the process was developed. The factor which best correlated with phosphorus removal was the pH of the tertiary effluent. Cost information for the model was generated based on a solids-contact type precipitator such as the Infilco Densator. A computer program, in FORTRAN IV, derived from the model, was developed for use as s subroutine in the FWPCA Executive Calling Program. Given the input stream flow rate and analyses, and the final pH, the program computes the necessary does of lime and coagulant, their costs, the size and cost of the equipment, the degree of phosphorus removal, and the output stream analyses. (WRSIC abstract)