An Evaluation of a Fuel-Soluble Organoboron Biocide for Control of Sulfate-Reducing Bacteria in Shipboard Fuel Tanks.
NAVAL RESEARCH LAB WASHINGTON D C
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A biocide composed of a mixture of two dioxaborinane derivatives has been evaluated in test-tube assays and in large-scale test systems simulating conditions in shipboard, seawater-displacement fuel tanks. A concentration of approximately 20,000 ppm in the water phase was required to control sulfate-reducing bacteria of marine origin in a mixed population of microorganisms. It is not likely that this concentration can be attained in the relatively large volumes of water present in water-displacement fuel tanks by partitioning from a feasible concentration in the fuel phase. A preferable alternative for controlling microorganisms in water-displacement fuel tanks is the addition directly to the water phase of one of several previously evaluated water-soluble, fuel-insoluble biocides known to be effective at concentrations of 50 to 100 ppm. Author