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
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.
引用
收藏
页码:254 / 259
页数:6
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