Transport of coliphage PRD1 in a surface flow constructed wetland

Juan A. Vidales-Contreras, Charles P. Gerba, Martin M. Karpiscak, Karim Acuna-Askar, Cristóbal Chaidez-Quiroz

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


A tracer study was conducted in a 3-ha surface flow constructed wetland to analyze transport performance of PRD1, an enteric virus model. The convection-dispersion equation (CDE), including a first-order reaction model, adequately simulated transport performance of PRD1 in the wetland under an average hydraulic loading rate of 82 mm/d. Convective velocity (v) and longitudinal dispersion coefficient (D) were estimated by modeling a conservative tracer (bromide) pulse through the wetland. Both PRD1 and bromide were simultaneously added to the entering secondary treated wastewater effluent. The mass of bromide and PRD1 recovered was 76 and 16%, respectively. The PRD1 decay rate was calculated to be 0.3/day. The findings of this study suggest that -the CDE model and analytical moment equations represent a suitable option to characterize virus transport performance in surface flow constructed wetlands.

Original languageEnglish (US)
Pages (from-to)2253-2260
Number of pages8
JournalWater Environment Research
Issue number11
StatePublished - Oct 2006


  • Coliphage
  • Constructed wetlands
  • Modeling
  • PRD1
  • Virus
  • Wastewater

ASJC Scopus subject areas

  • Environmental Chemistry
  • Ecological Modeling
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution


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