Surfactant Biodegradation

Author(s):  
C Drummond ◽  
F Grieser ◽  
D Furlong ◽  
I Baker
Author(s):  
Qi Wu ◽  
Lin Zhao ◽  
Ruirui Song ◽  
Aijin Ma

1994 ◽  
Vol 44 (3-4) ◽  
pp. 225-232 ◽  
Author(s):  
M. T. Garcia ◽  
I. Ribosa ◽  
L. Perez ◽  
J. Sanchez Leal

Author(s):  
Glória Marinho ◽  
F. Reinaldo Cavalcante ◽  
Renata Brasil Silveira ◽  
Luciana Pereira ◽  
Bárbara Barbosa ◽  
...  

1991 ◽  
Vol 23 (4-6) ◽  
pp. 879-887 ◽  
Author(s):  
Chu-Fei Ho ◽  
David Jenkins

Biodegradation experiments of the non-ionic surfactants Igepal C-620 (an alkyl-phenol ethoxylate) and Neodol 25-7 (an alcohol ethoxylate) were performed, and biodegradation assessed by concentration, foam potential and surface tension measurements. Igepal C-62 0 biodegraded much slower than Neodol 25-7. The foaming of activated sludge was significantly enhanced by the presence of surfactants, but surfactants alone could not generate a stable foam if the sludge did not contain Nocardia cells. It was also found that products of surfactant biodegradation which were not detected by standard non-ionic surfactant analysis method (CTAS) might still possess some foam-enhancing ability. The results indicate that slowly biodegradable surfactants can enhance the foaming of Nocardia-containing sludge and increase the trapping of Nocardia foam in activated sludge plants.


2011 ◽  
Vol 1 (1) ◽  
pp. 2
Author(s):  
Kehinde I. Temitope Eniola

Aerobic biodegradation of linear alkylbenzene sulfonate (LAS) by LAS-utilizing bacteria (LUB) in the presence of other sources of carbon (glucose and soluble starch) was examined. Biodegradation of LAS was monitored as primary degradation in terms of half-life (t½) of the surfactant. Biodegradation of LAS by the individual LUB was slower in the presence of Glucose. Biodegradation of the surfactant by the various consortia of LUB was slower in the presence of the carbon sources: t½ increased to 3 days. The rates of biodegradation by the consortia can be ranked as: four-membered (t½=9 days) > three-membered (t½=9 to 13 days) > two-membered consortia (t½=10 to 15 days). Generally, degradation in the presence of the carbon sources was faster with the consortia than the individual species. Degradation of the surfactant by the LUB was generally fastest in the absence of additional carbon sources. The possible role of additional carbon sources in persistence of surfactant in water bodies and the application of the observation in management of LAS-containing-effluent is suggested.


Chemosphere ◽  
1997 ◽  
Vol 35 (5) ◽  
pp. 1143-1160 ◽  
Author(s):  
David M. Lee ◽  
James B. Guckert ◽  
Scott E. Belanger ◽  
Tom C.J. Feijtel

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