Treatment of pulp mill wastewaters with fusarium solani in a rotating biological contactor

1 octubre, 2017 -


Alberto Vergara-Fernandez(a), Luis Diaz-Robles(b), Jessica San Martin-Davison(c), Ximena Petit-Breuilh(c).


(a) Universidad de los Andes, Facultad de Ingeniería y Ciencias Aplicadas,Mons. Álvaro del Portillo 12455, Las Condes. Santiago, 7620001 Chile.
(b) Universidad Católica de Temuco, Núcleo de Investigación en Energías Renovables, Rudecindo Ortega 0259 Campus Norte, Casilla 15-D, Temuco, Chile.
(c) Universidad Católica de Temuco, Facultad de Ingeniería, Escuela de Ingeniería de Procesos Industriales, Rudecindo Ortega 0259 Campus Norte, Casilla 15-D, Chile.


ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL
Volumen: 16 Páginas: 2275-2281
Fecha de publicación: 01 de Octubre de 2017


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)°C, inflow 3.5 L d-1,ydraulic 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-2d-1(84%) and 72 mg m-2d-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. © 2017, Gh. Asachi Technical University of Iasi. All rights reserved.


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