Dye Tracer Studies
Rhodamine dye is a biodegradable, fluorescent compound which may be detected at very low concentrations. OSI has decades of experience conducting water-mass tracer studies of both natural and engineered flows using Rhodamine dye as the tracer. The data acquired with dye studies are used to support the engineering and design of outfalls and other flow structures, to satisfy environmental permit requirements, and to calibrate and validate numerical flow models.
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For example, using continuous dye injection within a permitted discharge coupled with frequent surface mapping of the discharge plume, we have successfully mapped the zone of initial dilution and total plume extent as well as the dilution ratios of the discharge plume as a function of distance from the outfall. We have also conducted batch release studies which map changes in the position, shape and aerial extent of dye plume concentrations in order to support the calculation of meso-scale advection and dispersion in surface waters.
Representative Projects
Wastewater Treatment and Disposal: Alexandria, Egypt
Water Circulation: Bridgeport, Connecticut
