The rapid advances of industrial technology and the development of chemical industries have given rise to a huge consumption of different types of chemicals. Many xenobiotic compounds, that contaminate surface rivers and groundwaters, are difficult to treat by conventional methods. The SBBR (Sequencing Batch Biofilm Reactor) is a submerged filter that operates in a “fill and draw” mode and could be used for the elimination of xenobiotic compounds. The aim of the present paper was the preliminary study of an up-flow SBBR for remediation of groundwater contaminated by phenol and 2-CP. The impact of the dilution effect on the elimination rate was studied. An instantaneous reduction of the COD concentration of about 57%, respect to the influent, was achieved. The progressive organic substance degradation was analyzed at different bed heights of the reactor in the absence of effluent recirculation. The lab scale system showed 95% removal efficiency of 2-chlorophenol (2-CP) and 97% of phenol. The adsorption phenomena of the toxic compounds on the packing material were studied, showing about 50% COD removal in about 1 day operation.
Preliminary study of phenol and chlorophenol removal with SBBR / Farabegoli, Geneve; Chiavola, Agostina; Rolle, Enrico. - ELETTRONICO. - (2007), pp. ---. (Intervento presentato al convegno European Water and Wastewater Management Conference tenutosi a Newcastle upon Tyne nel 24-26 settembre 2007).
Preliminary study of phenol and chlorophenol removal with SBBR
FARABEGOLI, Geneve;CHIAVOLA, Agostina;ROLLE, Enrico
2007
Abstract
The rapid advances of industrial technology and the development of chemical industries have given rise to a huge consumption of different types of chemicals. Many xenobiotic compounds, that contaminate surface rivers and groundwaters, are difficult to treat by conventional methods. The SBBR (Sequencing Batch Biofilm Reactor) is a submerged filter that operates in a “fill and draw” mode and could be used for the elimination of xenobiotic compounds. The aim of the present paper was the preliminary study of an up-flow SBBR for remediation of groundwater contaminated by phenol and 2-CP. The impact of the dilution effect on the elimination rate was studied. An instantaneous reduction of the COD concentration of about 57%, respect to the influent, was achieved. The progressive organic substance degradation was analyzed at different bed heights of the reactor in the absence of effluent recirculation. The lab scale system showed 95% removal efficiency of 2-chlorophenol (2-CP) and 97% of phenol. The adsorption phenomena of the toxic compounds on the packing material were studied, showing about 50% COD removal in about 1 day operation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
