Biodegradation kinetics of surfactants in seawater.
Chemosphere
; 39(11): 1957-69, 1999 Nov.
Article
en En
| MEDLINE
| ID: mdl-10533720
ABSTRACT
In this paper, a general kinetic model for degradation processes of surfactants is proposed. The model equation is v = K2S2 + K1S + K0, where v is the substrate consumption rate in the biodegradation process, S is the surfactant concentration in the medium and K2, K1, and K0 are kinetic constants. From this general expression, different simplified equations can be obtained (where K0 = 0; K2 and K0 = 0; K2 = 0; K2 and K1 = 0), which are representative of the process for different operating conditions. This model was tested by measuring the degradation of two different surfactants (Sodium dodecyl benzene sulfonate, LAS; and Sodium dodecyl sulfate, DSNa) under two different temperatures (5 and 20 degrees C). Values predicted by the model are close to experimental data obtained.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Agua de Mar
/
Dodecil Sulfato de Sodio
/
Tensoactivos
/
Contaminantes Químicos del Agua
/
Bencenosulfonatos
/
Modelos Biológicos
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Chemosphere
Año:
1999
Tipo del documento:
Article
País de afiliación:
España