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RECORD NUMBER: 47 OF 51

OLS Field Name OLS Field Data
Main Title Study of Sludge Digestion With Sodium Chloride and Sulfate.
Author Ingol, Robert S. ; Robert, Jr, Richard ; Gaspe, Ekkehart ;
CORP Author Georgia Inst. of Tech., Atlanta. Engineering Experiment Station.
Year Published 1970
Report Number GIT-4-338; FWQA-RG-17070; 17070-DYF-09/70,; 03452
Stock Number PB-196 732
Additional Subjects ( Water pollution ; Industrial wastes) ; ( Textile industry ; Industrial waste treatment) ; ( Sewage treatment ; Digestion(Decomposition)) ; ( Microorganism control(Sewage) ; Metabolism) ; ( Surfactants ; Industrial waste treatment) ; ( Biodeterioration ; Surfactants) ; ( Detergents ; Industrial waste treatment) ; Sulfides ; Anaerobic processes ; Sodium chloride ; Aerobic processes ; Dyeing ; Carpets ; pH ; Flocculation ; Foaming ; Sulfates ; Waste water treatment ; Biodegradable detergents ; Water pollution control
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-196 732 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 49p
Abstract
The report contains two studies. In the first, high concentrations of sodium chloride and sodium sulfate were observed in a town with a high concentration of textile mills. Sludge digestion was very poor. A toxic synergism between sodium chloride and sodium sulfate (sulfide) was hypothecated. Data indicated a marked reduction in gas production through a bi-sulfide ion effect upon the first stage microorganisms. The methane organisms appeared to starve rather than suffer a toxic effect from an accumulation of first stage by-products. Inert salt concentration had very little effect. In the second, synthetic surfactants were studied. It was found that biodegradable synthetic detergents now used in place of salt to cause dye uptake require long periods of aerobic treatment because of interference by foam in floc development. (Author)