Combined post-ozonation and biological treatment of recalcitrant wastewater from a resin-producing factory
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Combined post-ozonation and biological treatment of recalcitrant wastewater from a resin-producing factoryData
2007-05Cita bibliográfica
Aparicio MA, Eiroa M, Kennes C, Veiga MC. Combined post-ozonation and biological treatment of recalcitrant wastewater from a resin-producing factory. J Hazard Mater. 2007;143(1-2):285-90
Resumo
In this study, effluent from the biological treatment of wastewater from a resin-producing factory containing recalcitrant compounds was ozonated under different conditions. Afterwards, the biodegradability of the ozonated effluent was studied under anoxic conditions. The post-ozonation of the industrial effluent was performed using a wide range of ozone doses, from 1.8 to 29.5 mg L−1 min−1. After the biological treatment of the ozonated effluent, organic carbon and nitrogen removals from 27 to 97% and from 27 to 80%, respectively, were achieved. The effect of the contact time was studied at a constant ozone dose of 13.0 ± 1.2 mg L−1 min−1 and contact times ranging from 30 to 180 min. In this case, organic carbon removals from 55 to 100% and organic nitrogen removals from 41 to 77% were obtained after biological treatment.
Palabras chave
Post-ozonation
Biodegradability
Recalcitrant wastewater
Resin-producing factory wastewater
Biodegradability
Recalcitrant wastewater
Resin-producing factory wastewater