1. Activated sludge degradation of adipic acid esters.
- Author
-
Saeger VW, Kalley RG 2nd, Hicks O, Tucker ES, and Mieure JP
- Subjects
- Biodegradation, Environmental, Carbon Dioxide biosynthesis, Esters, Adipates metabolism, Bacteria metabolism, Sewage, Water Microbiology
- Abstract
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.
- Published
- 1976
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