An investigation of the treatment of a complex waste oil–recycling hydrocarbon wastewater was made by employing white-rot fungal strains immobilized in a pinewood chip-packed reactor. The reactor was operated in sequencing batch mode. The fungal reactor was evaluated in a preliminary bench-scale reactor followed by intermediate-scale operation. Substantial chemical oxygen demand (COD) reduction (> 96% in 48-h batch cycles) and removal of specific influent compound constituents, alkanes (n-C8, n-C10–C12) and aromatic compound (o-xylene), was shown in diluted and undiluted (COD > 37 g L−1) influent. Industrial application of the fungal reactor was evaluated in a 14-m3 pilot plant erected on-site at a waste oil–processing facility. The scale-up implication and optimization of the field plant is discussed in relation to the process-monitoring programme.
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Ehlers et al. (2005) studied this question.
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