Research output: Contribution to Journal/Magazine › Journal article › peer-review
The biodegradation of cable oil components : impact of oil concentration, nutrient addition and bioaugmentation. / Towell, Marcie G.; Paton, Graeme I.; Semple, Kirk T.
In: Environmental Pollution, Vol. 159, No. 12, 12.2011, p. 3777-3783.Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - The biodegradation of cable oil components
T2 - impact of oil concentration, nutrient addition and bioaugmentation
AU - Towell, Marcie G.
AU - Paton, Graeme I.
AU - Semple, Kirk T.
PY - 2011/12
Y1 - 2011/12
N2 - 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.
AB - 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.
KW - Cable oil
KW - Biodegradation
KW - Phenyldodecane
KW - Nutrients
KW - Bioaugmentation and mineralisation
U2 - 10.1016/j.envpol.2011.06.043
DO - 10.1016/j.envpol.2011.06.043
M3 - Journal article
VL - 159
SP - 3777
EP - 3783
JO - Environmental Pollution
JF - Environmental Pollution
SN - 0269-7491
IS - 12
ER -