Este estudio contribuirá al conocimiento de los efectos esperados al biodegradar un compuesto organoclorado persistente en un sistema de fermentación secuencia1 anaerobia-aerobia en estado sólido. vii . ". . . . .. anaerobic pre-treatment in which activated sludges from a treatment plant of a softdrink facility were used, followed by aerobic condition. Total treatment lasted 28 days. Mixed cultures, including anaerobic and aerobic, were adapted to DDT for 40 days. These cultures were fed weekly with nutrients and 0.5 pg of DDT per mi of the viii " " " " que reúna sus propiedades y su eficacia (Cebrián, 1998; López y col., 1996; Wayland y col., 1992). El DDT es un compuesto orgánico de alta resistencia a la degradación por medios biológicos, fotolíticos o químicos, ya que su molécula contiene estructuras alifáticas y aromáticas que le dan gran estabilidad. Se considera como un compuesto contaminante persistente (Kannan y col., 1992) y de ahí el interés de realizar 1 . . -. * Coeficiente de particibn del carbono orghico. Fuente: ( U S Department o f Health and Human Services, 1994).
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