Effect of agitation and aeration on the reduction of pollutant load of olive mill wastewater by the white-rot fungus Panus tigrinus

被引:45
作者
D'Annibale, A [1 ]
Quaratino, D [1 ]
Federici, F [1 ]
Fenice, M [1 ]
机构
[1] Univ Tuscia, Dipartimento Agrobiol & Agrochim, I-01100 Viterbo, Italy
关键词
olive mill wastewater; biodegradation; lignin modifying enzymes; bubble column bioreactor; aeration; agitation;
D O I
10.1016/j.bej.2006.01.002
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
The white-rot fungus Panus tigrinus CBS 577.79 was cultivated both in mechanical (stirred tank, STR) and pneumatically (bubble column, BCB) agitated bioreactors and investigated for its ability to reduce the polluting load of olive-mill wastewater (OMW). Both aeration and agitation strongly influenced treatment efficiency. Best pollutants biodegradation performances were achieved in the bubble column bioreactor. Using this bioreactor, COD reduction, dephenolization and decoloration were 60.9, 97.2 and 75%, respectively. In contrast, lower depollution efficiency was generally observed in STR due to the possible occurrence of shear stress. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:243 / 249
页数:7
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