Numerical modeling of simultaneous tracer release and piscicide treatment for invasive species control in the Chicago Sanitary and Ship Canal, Chicago, Illinois

Zhenduo Zhu, Davide Motta, P. Ryan Jackson, Marcelo Horacio Garcia

Research output: Contribution to journalArticle

Abstract

In December 2009, during a piscicide treatment targeting the invasive Asian carp in the Chicago Sanitary and Ship Canal, Rhodamine WT dye was released to track and document the transport and dispersion of the piscicide. In this study, two modeling approaches are presented to reproduce the advection and dispersion of the dye tracer (and piscicide), a one-dimensional analytical solution and a three-dimensional numerical model. The two approaches were compared with field measurements of concentration and their applicability is discussed. Acoustic Doppler current profiler measurements were used to estimate the longitudinal dispersion coefficients at ten cross sections, which were taken as reference for calibrating the longitudinal dispersion coefficient in the one-dimensional analytical solution. While the analytical solution is fast, relatively simple, and can fairly accurately predict the core of the observed concentration time series at points downstream, it does not capture the tail of the breakthrough curves. These tails are well reproduced by the three-dimensional model, because it accounts for the effects of dead zones and a power plant which withdraws nearly 80 % of the water from the canal for cooling purposes before returning it back to the canal.

Original languageEnglish (US)
Pages (from-to)211-229
Number of pages19
JournalEnvironmental Fluid Mechanics
Volume17
Issue number2
DOIs
StatePublished - Apr 1 2017

Keywords

  • Asian carp
  • Breakthrough curve
  • Chicago Sanitary and Ship Canal
  • Dye tracer
  • Numerical modeling
  • Rhodamine
  • Rotenone piscicide

ASJC Scopus subject areas

  • Environmental Chemistry
  • Water Science and Technology

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