Activated sludge degradation of adipic acid esters

Autor: V. W. Saeger, J. P. Mieure, E. S. Tucker, O. Hicks, Kalley, R. G., nd
Rok vydání: 1976
Předmět:
Zdroj: Applied and Environmental Microbiology. 31:746-749
ISSN: 1098-5336
0099-2240
DOI: 10.1128/aem.31.5.746-749.1976
Popis: The biodegradability of three aliphatic adipic acid diesters and a 1,3-butylene glycol adipic acid polyester was determined in acclimated, activated sludge systems. Rapid primary biodegradation from 67 to 99+% was observed at 3- and 13-mg/liter feed levels for di-n-hexyl adipate, di(2-ethylhexyl) adipate, and di(heptyl, nonyl) adipate in 24 h. When acclimated, activated sludge microorganisms were employed as the seed for two carbon dioxide evolution procedures, greater than 75% of the theoretical carbon dioxide was evolved for the three diesters and the polyester in a 35-day test period. The essentially complete biodegradation observed in these studies suggests that these esters would not persist when exposed to similar mixed microbial populations in the environment.
Databáze: OpenAIRE