title: Effectiveness of a chemical herder in association with in-situ burning of oil spills in ice-infested water.
abstract: The average herded slick thickness, surface distribution and burning efficiency of a light crude oil were studied in ice-infested water to determine the effectiveness of a chemical herder in facilitating the in-situ burning of oil. Experiments were performed in a small scale (1.0m2) and an intermediate scale (19m2) setup with open water and 3/10, 5/10 and 7/10 brash ice coverages. The herded slick thicknesses (3-8mm) were ignitable in each experiment. The presence of ice caused fracturing of the oil during the herding process, which reduced the size of the herded slicks and, as a consequence, their ignitability, which in turn decreased the burning efficiency. Burning efficiencies relative to the ignited fraction of the oil were in the expected range (42-86%). This shows that the herder will be an effective tool for in-situ burning of oil when the ignitability issues due to fracturing of the oil are resolved.
authors.affiliation: Department of Civil Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark. Electronic address: lauge@byg.dtu.dk.
authors.forename: Laurens
authors.initials: L
authors.lastname: van Gelderen
authors.affiliation: Department of Bioscience, Aarhus University, 4000 Roskilde, Denmark.
authors.forename: Janne
authors.initials: J
authors.lastname: Fritt-Rasmussen
authors.affiliation: Department of Civil Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
authors.forename: Grunde
authors.initials: G
authors.lastname: Jomaas
mesh_terms: D052918:Environmental Restoration and Remediation / Q000295:instrumentation*; D005390:Fires; D007053:Ice; D010578:Petroleum; D059392:Petroleum Pollution / Q000032:analysis*; D014867:Water; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D007053:Ice; D010578:Petroleum; D014874:Water Pollutants, Chemical; D014867:Water
keywords: Chemical herder; Ice-infested water; In-situ burning; Oil spills