Use of Geotrichum candidum for olive mill wastewater treatment in submerged and static culture

被引：59

作者：

Asses, N. ^{[1
]}

Ayed, L. ^{[1
]}

Bouallagui, H. ^{[1
]}

Ben Rejeb, I. ^{[1
]}

Gargouri, M. ^{[1
]}

Hamdi, M. ^{[1
]}

机构：

[1] INSAT, Lab Ecol & Technol Microbienne, Tunis 1080, Tunisia

来源：

BIORESOURCE TECHNOLOGY | 2009年 / 100卷 / 07期

关键词：

Geotrichum candidum; Olive mill wastewater; Decolourisation; Settler; Bubble column; LIPASE PRODUCTION; PHANEROCHAETE-CHRYSOSPORIUM; EXTRACELLULAR LIPASE; PLEUROTUS-OSTREATUS; ASPERGILLUS-NIGER; WASTEWATERS; OPTIMIZATION; DECOLORIZATION; BIODEGRADATION; PURIFICATION;

D O I：

10.1016/j.biortech.2008.10.048

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The production of lignin peroxidase (LiP), manganese peroxidase (MnP) and lipases by Geotrichum candidum were performed in order to control the decolourisation and biodegradation of olive mill wastewater (OMW). Optimisation of different factors showed that dilution, carbon and ammonium concentrations significantly affected clecolourisation and activities of ligniolytic peroxidases (LiP and MnP) on OMW. Moreover, addition of olive oil and agitation improved the lipase production. Batch and continuous OMW treatments in settler or bubble column bioreactors showed high COD and colour removal efficiencies of 60% and 50%, respectively. Lipolytic activity was greater in the batch bubble column whereas, LiP and MnP productions were improved in the settler. The performance of the continuous processes decreased with the decrease of hydraulic retention time (HRT). It has been shown that clecolourisation and biodegradation decreased with an average of 40% and 45%, respectively, by decreasing the HRT from 4 d to 1.7 d. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2182 / 2188

页数：7

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