ENHANCEMENT OF THE ANAEROBIC-DIGESTION OF WINE DISTILLERY WASTE-WATER BY THE REMOVAL OF PHENOLIC INHIBITORS

被引:77
作者
BORJA, R [1 ]
MARTIN, A [1 ]
MAESTRO, R [1 ]
LUQUE, M [1 ]
DURAN, MM [1 ]
机构
[1] UNIV CORDOBA,FAC CIENCIAS,DEPT INGN QUIM,AVDA SAN ALBERTO MAGNO S-N,E-14004 CORDOBA,SPAIN
关键词
ANAEROBIC DIGESTION; WINE DISTILLERY WASTE-WATER; KINETICS; GEOTRICHUM-CANDIDUM; PHENOLS; INHIBITION;
D O I
10.1016/0960-8524(93)90097-U
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
Wine-distillery wastewater has a high organic pollutant load (40 g COD/litre) which includes various phenolic compounds, the major ones being gallic acid, p-coumaric acid and gentisic acid This feature makes it difficult to treat this wastewater anaerobically without a prior dilution of the wastewater. Partial removal of some of the organic matter and phenolic compounds by aerobic pretreatment with Geotrichum candidum is described in this study. This method provides a partially purified effluent that is more rapidly anaerobically degraded than the original wine-distillery wastewater for the same COD-loading level. The anaerobic bioreactor contained a suspension of micronized clay (saponite) to which the microorganisms responsible for the process adhered Assuming that the overall anaerobic digestion process follows first-order kinetics, the specific rate constant, K0, was obtained under various conditions. In contrast to the anaerobic digestion of unmodified wine-distillery wastewater, the kinetic constants of the anaerobic digestion of aerobically pretreated wine-distillery wastewater were virtually constant over the COD range used (1.0-6.7 g/litre).
引用
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页码:99 / 104
页数:6
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