Record Display for the EPA National Library Catalog

RECORD NUMBER: 17 OF 20

Main Title Sewage odor control by liquid-gas extraction : a report of a research project to study the feasibility of sewage odor control by liquid-gas extraction through the use of a two phase contractor and absorbing solutions /
CORP Author San Diego (Calif.). Water Utilities Dept.; San Diego Water Utilities Dept., Calif.
Publisher Federal Water Pollution Control Administration,
Year Published 1970
Report Number PB209641
Stock Number PB209641
OCLC Number 159957453
Subjects Sewage disposal plants--Odor control
Additional Subjects ( Odor control ; Sewage treatment) ; ( Contactors ; Odor control) ; ( Hydrogen sulfide ; Absorption) ; Adsorbents ; Oxidizers ; Sodium hydroxide ; Calcium hypochlorites ; Potassium permanganate ; Copper sulfates ; Absorbers(Equipment) ; Chlorine ; Ammonium compounds ; Cost estimates ; Performance evaluation ; Air pollution ; Air pollution control
Holdings
Library Call Number Additional Info Location Last
Modified		 Checkout
Status
EJBM  TD747.S3 1970 Headquarters Library/Washington,DC 08/03/2007
NTIS  PB-209 641 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation {vii}, 114 p. : ill., 28 cm.
Abstract
An investigation into chemical methods for treatment of foul air was conducted by the City of San Diego. A pilot liquid-gas contactor was constructed of PVC lining and stainless steel shafting. Several oxidizing and absorptive chemicals (tap water, sodium hydroxide, calcium hypochlorite, potassium permanganate, copper sulfate, copper chelate, etc.) as well as biologically active materials, were used in the contractor to remove the foul odors in air vented from the sewage sedimentation tanks. Under the experimental sulfide levels of 1.0 to 20.0 ppm H2S (by weight in the gas) good removal was shown by commercial sodium hydroxide, gaseous chlorine and ammoniated copper chelate. Ozone, when used in conjunction with other reactive chemicals, helped in removal of odors other than H2S, as well as H2S. Approximate costs (chemicals only) for treating 1,000,000 cubic feet (28,318.5 cubic meters) of foul air are given. (Author)
Notes
Work conducted by the City of San Diego and jointly funded with the Office of Research and Development, Federal Water Pollution Control Administration, U.S. Department of the Interior for the Federal Water Pollution Control Administration Department of the Interior. Demonstration Grant no. W.P.D. 135-01-67, Contract no. 16050DEX. Includes bibliographical references ( p. 110-111).
Contents Notes
An investigation into chemical methods for treatment of foul air was conducted by the City of San Diego. A pilot liquid-gas contactor was constructed of PVC lining and stainless steel shafting. Several oxidizing and absorptive chemicals (tap water, sodium hydroxide, calcium hypochlorite, potassium permanganate, copper sulfate, copper chelate, etc.) as well as biologically active materials, were used in the contractor to remove the foul odors in air vented from the sewage sedimentation tanks. Under the experimental sulfide levels of 1.0 to 20.0 ppm H2S (by weight in the gas) good removal was shown by commercial sodium hydroxide, gaseous chlorine and ammoniated copper chelate. Ozone, when used in conjunction with other reactive chemicals, helped in removal of odors other than H2S, as well as H2S. Approximate costs (chemicals only) for treating 1,000,000 cubic feet (28,318.5 cubic meters) of foul air are given. (Author)