An exploratory study of peat and sawdust as enhancers in the (bio)degradation of <i>n</i>-dodecane

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dc.contributor.authorSaez-Navarrete, Cesar
dc.contributor.authorGelmi, Claudio A.
dc.contributor.authorReyes-Bozo, Lorenzo
dc.contributor.authorGodoy-Faundez, Alex
dc.date.accessioned2025-01-21T01:05:02Z
dc.date.available2025-01-21T01:05:02Z
dc.date.issued2008
dc.description.abstractCurrent practice for dealing with oil spills involves the use of adsorbent materials to contain the pollution prior to bioremediation of the contaminated soil and adsorbent. This work presents a study of the effects of bioavailable carbon sources in the adsorbents peat and sawdust as organic nutrients for microorganisms specialized in degrading n-dodecane in soil and sawdust contaminated with hydrocarbon mixtures. An experimental bioremediation system was developed using n-dodecane, biomass adapted to n-dodecane, inorganic nutrients and the two adsorbents (sterilized). Bioreactors containing peat enhanced cell growth the most and also evolved more CO2. An advantage of peat is that its soluble carbon sources can sustain higher cell densities compared to sawdust, and this may prove decisive when cultivating endogenous microorganisms for the aerobic bioremediation of soils contaminated with hydrocarbons. However, at the end of the 68-day experiment slightly higher n-dodecane removal was identified in the system containing sawdust-n-dodecane (99.6%) than in that with peat-n-dodecane (98.5%), evidencing the higher hydrocarbon retention capacity of peat. Based on this study, the use of sawdust instead of peat is recommended when an adapted inoculum is available for aerobic bioremediation of organic contaminants, whereas the use of peat is advisable to boost cell densities in order to improve the probability of sustaining a viable biomass in unfavorable conditions.
dc.fuente.origenWOS
dc.identifier.doi10.1007/s10532-007-9158-y
dc.identifier.eissn1572-9729
dc.identifier.issn0923-9820
dc.identifier.urihttps://doi.org/10.1007/s10532-007-9158-y
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95794
dc.identifier.wosidWOS:000256338300007
dc.issue.numero4
dc.language.isoen
dc.pagina.final534
dc.pagina.inicio527
dc.revistaBiodegradation
dc.rightsacceso restringido
dc.subjectadsorbent
dc.subjectbioreactor
dc.subjectdodecane
dc.subjectmineralization
dc.subjectbioremediation
dc.subject.ods06 Clean Water and Sanitation
dc.subject.odspa06 Agua limpia y saneamiento
dc.titleAn exploratory study of peat and sawdust as enhancers in the (bio)degradation of <i>n</i>-dodecane
dc.typeartículo
dc.volumen19
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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