IN SITU BIOREMEDIATION: TUNING IN THE LAB SAVES TIME AND MONEY AT APPLICATION SCALE

Martin Romantschuk, Riikka Mäkelä, Suvi Anniina Simpanen, Vuokko Hannele Malk, Harri Talvenmäki, Aki Sinkkonen, Sari Kauppi

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

    Abstract

    For more than 20 years we have tested various approaches for enhancement of bioremediation of sites polluted by organic contaminants. Through collaboration with contractors and site owners, more than 10 actual sites presenting typical problems have been targets for testing and optimization, first by laboratory modeling, and then by applying lab experiences in application scale. Samples from the sites were used in controlled laboratory conditions to build micro- and mesocosm- setups in which biological, physical, and chemical treatments were tested and combined, with the main goal of achieving optimal biostimulation and contaminant degradation. As soon as lab results were available, these were utilized for in situ field purposes. Lab and field tests were run in parallel, so that each new challenge in the field treatment generated modifications in the laboratory testing, and each new full scale treatment method was preceded by laboratory modeling. Successful bioremediation was achieved in most of the target cases. Lab testing also created the knowledge when not to use bioremediation, and this can be regarded as one of the utilities of our results. Fresh oil spills resulting from accidents is a new research topic. While old contaminated sites often can rely on an adapted indigenous microbial community, new spill sites may be less responsive to mere biostimulation, and therefore more active treatment measures may be required. The results from this oil spill simulation performed at a lysimeter field are currently being gathered.
    Original languageEnglish
    Title of host publicationLinnaeus Eco-Tech 2012 : The Eighth International Conference on the Establishment of Cooperation Between Companies and Institutions in the Nordic Countries, the Baltic Sea Region, and the World. Conference on Natural Sciences and Environmental Technologies for Waste and Wastewater Treatment, Remediation, Emissions Related to Climate, Environmental and Economic Effects
    EditorsEva Kumar, Joacim Rosenlund, Fabio Kaczala, William Hogland
    Number of pages7
    Place of PublicationKalmar, Sweden
    Publication date2012
    Pages144-150
    ISBN (Print)978-91-86983-86-4
    Publication statusPublished - 2012
    MoE publication typeA4 Article in conference proceedings
    EventLINNAEUS ECO-TECH 2012 - Kalmar, Sweden
    Duration: 26 Nov 201228 Nov 2012
    Conference number: 8

    Fields of Science

    • 218 Environmental engineering
    • in situ
    • bioremediation

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