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Efficient removal of pollutants from olive washing wastewater in bubble-column bioreactor by Trametes versicolor
被引:37
作者:
Cerrone, F.
[1
]
Barghini, P.
[1
]
Pesciaroli, C.
[1
]
Fenice, M.
[1
]
机构:
[1] Univ Tuscia, Dipartimento Ecol & Sviluppo Econ Sostenibile DEC, I-01100 Viterbo, Italy
来源:
关键词:
Trametes versicolor;
Continuous process;
Olive washing wastewater;
Biological treatment;
ORGANIC LOADING RATE;
MILL WASTE;
PANUS-TIGRINUS;
MANGANESE PEROXIDASE;
LACCASE;
FERMENTATION;
TROGII;
BIODEGRADATION;
WASTEWATERS;
AGITATION;
D O I:
10.1016/j.chemosphere.2011.03.066
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
The white-rot fungi Panus tigrinus, Funalia trogii and Trametes versicolor have been tested in shake flasks for the reduction of olive washing wastewater (OWW) pollutants and production of oxidases on OWW-based media. P. tigrinus was rejected for its scarce performance. F. trogii showed best production of laccase (27 000 U g(-1)), while T. versicolor appeared a good pollutant degrader reducing colour, COD and phenols by 60, 72 and 87%, respectively. Only T. versicolor grew well in bubble-column bioreactor: its OWW depollution, in continuous process, led to colour. COD and phenols reduction by 65%, 73% and 89%, respectively. Optimal dilution rate was 0.225 d(-1) (0.225 m(3) of effluent treated daily per m(3) of bioreactor). Thus, a small bioreactor (10 m(3)) could treat daily the amount of OWW produced by a standard olive washing machine (2 m(3) d(-1)). For these reasons, this process could be proposed as a simple, efficient and low-cost OWW treatment. (C) 2011 Elsevier Ltd. All rights reserved.
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页码:254 / 259
页数:6
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