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The biodegradation of cable oil components : impact of oil concentration, nutrient addition and bioaugmentation

Towell, Marcie G. and Paton, Graeme I. and Semple, Kirk T. (2011) The biodegradation of cable oil components : impact of oil concentration, nutrient addition and bioaugmentation. Environmental Pollution, 159 (12). pp. 3777-3783. ISSN 0269-7491

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The effect of cable oil concentration, nutrient amendment and bioaugmentation on cable oil component biodegradation in a pristine agricultural soil was investigated. Biodegradation potential was evaluated over 21 d by measuring cumulative CO2 respiration on a Micro-Oxymax respirometer and C-14-phenyldodecane mineralisation using a C-14-respirometric assay. Cable oil concentration had a significant effect upon oil biodegradation. Microbial respiratory activity increased with increasing cable oil concentration, whereas C-14-phenydodecane mineralisation decreased. Bioaugmentation achieved the best cable oil biodegradation performance, resulting in increases in cumulative CO2 respiration, and maximum rates and extents of C-14-phenyldodecane mineralisation. Generally, nutrient amendment also enhanced cable oil biodegradation, but not to the extent that degrader amendment did. Cable oil biodegradation was a function of (i) cable oil concentration and (ii) catabolic ability of microbial populations. Bioaugmentation may enhance cable oil biodegradation, and is dependent upon composition, cell number and application of catabolic inocula to soil. (C) 2011 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Journal or Publication Title: Environmental Pollution
Uncontrolled Keywords: Cable oil ; Biodegradation ; Phenyldodecane ; Nutrients ; Bioaugmentation and mineralisation
Subjects: ?? ge ??
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 58440
Deposited By: ep_importer_pure
Deposited On: 19 Sep 2012 12:08
Refereed?: Yes
Published?: Published
Last Modified: 23 Apr 2018 02:10
Identification Number:

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