Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Mineralisation of target hydrocarbons in three contaminated soils from former refinery facilities
AU - Towell, Marcie
AU - Bellarby, Jessica
AU - Paton, Graeme I.
AU - Coulon, Frederic
AU - Pollard, Simon J. T.
AU - Semple, Kirk T.
PY - 2011/2/2
Y1 - 2011/2/2
N2 - This study investigated the microbial degradation of C-14-labelled hexadecane, octacosane, phenanthrene and pyrene and considered how degradation might be optimised in three genuinely hydrocarbon-contaminated soils from former petroleum refinery sites. Hydrocarbon mineralisation by the indigenous microbial community was monitored over 23 d. Hydrocarbon mineralisation enhancement by nutrient amendment (biostimulation), hydrocarbon degrader addition (bioaugmentation) and combined nutrient and degrader amendment, was also explored. The ability of indigenous soil microflora to mineralise C-14-target hydrocarbons was appreciable; >= 16% mineralised in all soils. Generally, addition of nutrients or degraders increased the rates and extents of mineralisation of C-14-hydrocarbons. However, the addition of nutrients and degraders in combination had a negative effect upon C-14-octacosane mineralisation and resulted in lower extents of mineralisation in the three soils. In general, the rates and extents of mineralisation will be dependent upon treatment type, nature of the contamination and adaptation of the ingenious microbial community.
AB - This study investigated the microbial degradation of C-14-labelled hexadecane, octacosane, phenanthrene and pyrene and considered how degradation might be optimised in three genuinely hydrocarbon-contaminated soils from former petroleum refinery sites. Hydrocarbon mineralisation by the indigenous microbial community was monitored over 23 d. Hydrocarbon mineralisation enhancement by nutrient amendment (biostimulation), hydrocarbon degrader addition (bioaugmentation) and combined nutrient and degrader amendment, was also explored. The ability of indigenous soil microflora to mineralise C-14-target hydrocarbons was appreciable; >= 16% mineralised in all soils. Generally, addition of nutrients or degraders increased the rates and extents of mineralisation of C-14-hydrocarbons. However, the addition of nutrients and degraders in combination had a negative effect upon C-14-octacosane mineralisation and resulted in lower extents of mineralisation in the three soils. In general, the rates and extents of mineralisation will be dependent upon treatment type, nature of the contamination and adaptation of the ingenious microbial community.
U2 - 10.1016/j.envpol.2010.10.015
DO - 10.1016/j.envpol.2010.10.015
M3 - Journal article
VL - 159
SP - 515
EP - 523
JO - Environmental Pollution
JF - Environmental Pollution
SN - 0269-7491
IS - 2
ER -