The Enhancement of Naphthalene Degradation in Soil by Hydroxypropyl-β-Cyclodextrin

The enriched anaerobic naphthalene-adapted mixed bacteria were capable of biodegrading naphthalene efficiently and without a lag phase in soil upon inoculating under nitrate reducing conditions when the initial concentration was below 150 mg/kg in soil. Nitrite, a product of nitrate reduction, did not inhibit naphthalene degradation even at concentrations over 143 mg/L. Naphthalene degradation was enhanced approximately two times when 10 g/L hydroxypropyl-β-cyclodextrin (HPCD) was amended simultaneously in soil.