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

doi:10.2175/106143006X111934

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 journal › Article › peer-review

16 Scopus citations

Abstract

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 language	English (US)
Pages (from-to)	2253-2260
Number of pages	8
Journal	Water Environment Research
Volume	78
Issue number	11
DOIs	https://doi.org/10.2175/106143006X111934
State	Published - Oct 2006
Externally published	Yes

Keywords

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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10.2175/106143006X111934

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title = "Transport of coliphage PRD1 in a surface flow constructed wetland",

abstract = "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.",

keywords = "Coliphage, Constructed wetlands, Modeling, PRD1, Virus, Wastewater",

author = "Vidales-Contreras, {Juan A.} and Gerba, {Charles P.} and Karpiscak, {Martin M.} and Karim Acuna-Askar and Crist{\'o}bal Chaidez-Quiroz",

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AU - Vidales-Contreras, Juan A.

AU - Gerba, Charles P.

AU - Karpiscak, Martin M.

AU - Acuna-Askar, Karim

AU - Chaidez-Quiroz, Cristóbal

PY - 2006/10

Y1 - 2006/10

N2 - 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.

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KW - Coliphage

KW - Constructed wetlands

KW - Modeling

KW - PRD1

KW - Virus

KW - Wastewater

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ER -

Transport of coliphage PRD1 in a surface flow constructed wetland

Abstract

Keywords

ASJC Scopus subject areas

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