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System optimization is an important goal at wastewater treatment plants. Identifying process bottlenecks and potential solutions ensures a facility's entire capacity is available. A visible tracer or dye can be used to identify cross-connections at a plant that cannot be verified from the physical structure or drawings. Tracers can also be quantitatively measured in a liquid stream to evaluate connections and mixing as well as actual tank volumes and process kinetics.

This paper outlines the use of three different tracers and the results obtained by either metering in the tracer or introducing the tracer as a slug into the process. Tracers were used to evaluate sampling, flow splits, reactor retention times and short-circuiting. With adequate care, preparation and good mixing these tracers/dyes can provide useful information to the operation of a facility.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864701790902491

Publication date: January 1, 2001

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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