Arctic Oil Spill Cleaning: Deep Water Dispersants Compared
The Bureau of Safety and Environmental Enforcement (BSEE) recently tested independent dispersant effectiveness for oil spill cleaning. Several products tested under especially simulated arctic conditions at Ohmsett. The test program aims to better understand the effectiveness of various dispersants under the test conditions and compare the products. The results assist BSEE and its federal partners in their decision making specifically with regards to the various dispersants that the oil spill response organizations (OSROs) consider for use on the U.S. Outer Continental Shelf. Testing ran from October 13 through November 6, 2015. The report is currently under draft. A peer review of the report will expectedly show in summer of 2017. As a result, the final reports are posed at the completion of the peer review.
Consequently, a test ran on a selection of four dispersants from the Environmental Protection Agency’s (EPA) National Contingency Plan (NCP) Product Schedule on an Alaskan crude oil. They include Corexit® EC9500A, Finasol® OSR 52, Accell® Clean DWD, and ZI 400. To capture operational effectiveness issues, the dispersants were applied to a surface slick using Ohmsett’s spray bar. This simulates a system similar to a boat spraying system.
The goal of this test program is comparative dispersant effectiveness testing at the Ohmsett facility in an effort to capture both qualitative and quantitative data for multiple commercially available dispersant products. Based on the metrics captured, the following conclusions can be made: