TREATMENT OF PULP MILL WASTEWATERS WITH Fusarium solani IN A ROTATING BIOLOGICAL CONTACTOR
TREATMENT OF PULP MILL WASTEWATERS WITH Fusarium solani IN A ROTATING BIOLOGICAL CONTACTOR
Authors
Vergara Fernández, Alberto
Díaz Robles, Luis
San Martín Davison, Jessica
Petit Breuilh, Ximena
Díaz Robles, Luis
San Martín Davison, Jessica
Petit Breuilh, Ximena
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Date
Datos de publicación:
ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL,Vol.16,2275-2281,2017
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Abstract
This study assesses the feasibility of using the filamentous fungus Fusarium solani for the removal of colour, chemical oxygen demand (COD) and total phenols from a pulp mill industry effluent, inoculated in a rotating biological contactor (RBC). The study was done in a RBC of total volume 7.2 L, operated with 40% of useful volume at 37(+/- 2)degrees C, inflow 3.5 L d(-1), hydraulic residence time (HRT) 20 h and rotation speed 2 rpm. A Haldane model was used to determine the kinetic parameters of F. solani with a model effluent. The results show maximum elimination capacities and removal efficiencies for COD and phenols of 2921 mg m(-2) d(-1) (84%) and 72 mg m(-2) d(-1) (83%), respectively. Colour removal efficiencies of 60% (equivalent to 32 colour units, CU) were also obtained. The kinetic results show COD inhibition at concentrations above 110 mg L-1.