Main Title |
Investigation of a High-Pressure Foam Waste Water Treatment Process. |
Author |
Mille, James K. P. ;
Legatsk, L. Karl ;
|
CORP Author |
Garrett Research and Development Co., Inc., La Verne, Calif. |
Year Published |
1970 |
Report Number |
05156,; 17030-ESX |
Stock Number |
PB-197 863 |
Additional Subjects |
( Sewage treatment ;
Chemical removal(Sewage treatment)) ;
( Flotation ;
Sewage treatment) ;
High pressure tests ;
Dissolved gases ;
Air ;
Organic compounds ;
Phosphates ;
Particles ;
Coagulants ;
Pilot plants ;
Cost estimates ;
Iron chlorides ;
Equipment ;
Foam fractionation
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-197 863 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
39p |
Abstract |
The technical and economic feasibility of the separation of organic materials and other contaminants from primary and secondary sewage effluent by a foam fractionation-flotation process was studied. Air-waste water mixtures were held at pressures above 150 psi for from 6 to 25 minutes and then bled to a release vessel where pressures were reduced to atmospheric. Soluble organic and particulate matter collected at the bubble-water interfaces of the fine bubbles being evolved from the supersaturated liquid. Effects of varying flow rate, pressure, contact time, and of different release vessels and additives were studied. 70%, 90%, and 40-80% reductions of COD, phosphates, and suspended solids were effected at optimum conditions of air-to-water volume ratios of 2.17 to 1, pressures greater than 175 psi, and with 300-400 mg/l alum or ferric chloride as coagulants. Estimated costs, exclusive of chemicals were 5 cents/1000 gallons for a 10 mgd plant. (WRSIC abstract) |
Supplementary Notes |
Paper copy available from SOD, $0.45 as ZZ I67.13/4:17030ESX 04/70. |
NTIS Title Notes |
Water pollution control research series. |
PUB Date Free Form |
Apr 70, |
Category Codes |
13B; 68D |
NTIS Prices |
PC-SOD/MF A01-NTIS |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
326516649 |
Origin |
NTIS |
Type |
CAT |