Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Onshore Treatment System for Sewage from Watercraft Retention Systems.
Author Glueckert, A. J. ; Saigh., P. A. ;
CORP Author General American Transportation Corp., Niles, Ill. General American Research Div.;National Environmental Research Center, Cincinnati, Ohio.
Year Published 1975
Report Number GARD-1576; EPA-68-03-0221; EPA/670/2-75-007;
Stock Number PB-239 630
Additional Subjects Sewage treatment ; Incinerators ; Marinas ; Sludge digestion ; Additives ; Foaming ; Reducing agents ; Sludge disposal ; Performance evaluation ; Evaporation ; Recreational vessels
Library Call Number Additional Info Location Last
NTIS  PB-239 630 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 49p
During the program an evaporative waste treatment system for onshore treatment of sewage from watercraft retention systems was developed and demonstrated. Wastes and chemical additives associated with recreational watercraft holding tanks were characterized by analyses of sewage samples obtained from marina and watercraft retention tanks utilizing both freshwater and seawater flushed sanitary systems and by a survey of typical chemical additives employed as bacteriostatic and odor reducing agents. An evaporative waste treatment system was evaluated by testing a propane-fired evaporator for 224 hours with in-house sewer wastes and wastes collected from marina holding tanks. The evaporative system treated 4,590 liters (1,212 gal.) of sewage and concentrated the total solids of the sludge from the initial 0.5% to 12.4% before servicing and removal of the concentrated sludge was required. Although the incineration of the sludge was feasible, the available incinerator was too small to handle all the sludge which could be produced by the continuously operating evaporator. Continuous operation of the evaporator requires approximately 1.0 x 1,000,000 kilocalories per 1000 liters of wastewater evaporated (15 x 1,000,000 Btu/1000 gal.); the actual costs depend on the fuel used and its price.