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Evaluation of Bed Depth Reduction, Media Change, and Partial Saturation as Combined Strategies to Modify in Vertical Treatment Wetlands

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Evaluation of Bed Depth Reduction, Media Change, and Partial Saturation as Combined Strategies to Modify in Vertical Treatment Wetlands. / Vera-Puerto, Ismael; Valdes, Hugo ; Correa, Christian ; Perez, Valeria; Gomez, Roberto; Alarcon, Erica; Arias, Carlos Alberto.

I: International Journal of Environmental Research and Public Health, Bind 18, Nr. 9, 4842, 05.2021.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

Vera-Puerto, I, Valdes, H, Correa, C, Perez, V, Gomez, R, Alarcon, E & Arias, CA 2021, 'Evaluation of Bed Depth Reduction, Media Change, and Partial Saturation as Combined Strategies to Modify in Vertical Treatment Wetlands', International Journal of Environmental Research and Public Health, bind 18, nr. 9, 4842. https://doi.org/10.3390/ijerph18094842

APA

Vera-Puerto, I., Valdes, H., Correa, C., Perez, V., Gomez, R., Alarcon, E., & Arias, C. A. (2021). Evaluation of Bed Depth Reduction, Media Change, and Partial Saturation as Combined Strategies to Modify in Vertical Treatment Wetlands. International Journal of Environmental Research and Public Health, 18(9), [4842]. https://doi.org/10.3390/ijerph18094842

CBE

Vera-Puerto I, Valdes H, Correa C, Perez V, Gomez R, Alarcon E, Arias CA. 2021. Evaluation of Bed Depth Reduction, Media Change, and Partial Saturation as Combined Strategies to Modify in Vertical Treatment Wetlands. International Journal of Environmental Research and Public Health. 18(9):Article 4842. https://doi.org/10.3390/ijerph18094842

MLA

Vancouver

Vera-Puerto I, Valdes H, Correa C, Perez V, Gomez R, Alarcon E o.a. Evaluation of Bed Depth Reduction, Media Change, and Partial Saturation as Combined Strategies to Modify in Vertical Treatment Wetlands. International Journal of Environmental Research and Public Health. 2021 maj;18(9). 4842. https://doi.org/10.3390/ijerph18094842

Author

Vera-Puerto, Ismael ; Valdes, Hugo ; Correa, Christian ; Perez, Valeria ; Gomez, Roberto ; Alarcon, Erica ; Arias, Carlos Alberto. / Evaluation of Bed Depth Reduction, Media Change, and Partial Saturation as Combined Strategies to Modify in Vertical Treatment Wetlands. I: International Journal of Environmental Research and Public Health. 2021 ; Bind 18, Nr. 9.

Bibtex

@article{a1129bfdf3124a2b808675e8ca645377,
title = "Evaluation of Bed Depth Reduction, Media Change, and Partial Saturation as Combined Strategies to Modify in Vertical Treatment Wetlands",
abstract = "The aim of this work was to evaluate the performance of vertical subsurface flow treatment wetlands (VSSF TWs) for treating rural domestic wastewater when strategies such as bed depth reduction and media change are used in combination with bottom saturation. Two treatment wetland systems were implemented: normal (VF-N), with a bed depth of 1.0 m, and modified (VF-M), with a bed depth of 0.5 m and a bottom layer of natural zeolite. Schoenoplectus californicus was used as experimental plant. These two treatment systems were operated at a hydraulic loading rate of 120 mm/d in two phases. Phase I did not use bottom saturation, while Phase II involved a bottom saturation of the zeolite layer of the VF-M system. The results show that bed depth reduction did not have a significant effect (p > 0.05) in terms of organic matter, solids, and ammonium removal. Conversely, it had a significant influence (p < 0.05) on phosphate as well as a negative effect on pathogen removal. This influence could be explained by initial media capacity for phosphorus removal and filtration importance in the case of pathogens. Partial saturation only had a positive influence on total nitrogen removal. The addition of a bottom layer of natural zeolite showed no positive effect on nutrient removal. The plant showed adaptation and positive development in both VF-N and VF-M. The water balance showed that water loss was not influenced by bed depth reduction. Therefore, according to the previous results, a combination of the proposal modifications to VSSF TWs can be introduced for treating rural domestic wastewater. View Full-Text",
keywords = "nutrients; partial saturation; vertical subsurface flow treatment wetlands; zeolite",
author = "Ismael Vera-Puerto and Hugo Valdes and Christian Correa and Valeria Perez and Roberto Gomez and Erica Alarcon and Arias, {Carlos Alberto}",
year = "2021",
month = may,
doi = "10.3390/ijerph18094842",
language = "English",
volume = "18",
journal = "International Journal of Environmental Research and Public Health",
issn = "1661-7827",
publisher = "MDPI AG",
number = "9",

}

RIS

TY - JOUR

T1 - Evaluation of Bed Depth Reduction, Media Change, and Partial Saturation as Combined Strategies to Modify in Vertical Treatment Wetlands

AU - Vera-Puerto, Ismael

AU - Valdes, Hugo

AU - Correa, Christian

AU - Perez, Valeria

AU - Gomez, Roberto

AU - Alarcon, Erica

AU - Arias, Carlos Alberto

PY - 2021/5

Y1 - 2021/5

N2 - The aim of this work was to evaluate the performance of vertical subsurface flow treatment wetlands (VSSF TWs) for treating rural domestic wastewater when strategies such as bed depth reduction and media change are used in combination with bottom saturation. Two treatment wetland systems were implemented: normal (VF-N), with a bed depth of 1.0 m, and modified (VF-M), with a bed depth of 0.5 m and a bottom layer of natural zeolite. Schoenoplectus californicus was used as experimental plant. These two treatment systems were operated at a hydraulic loading rate of 120 mm/d in two phases. Phase I did not use bottom saturation, while Phase II involved a bottom saturation of the zeolite layer of the VF-M system. The results show that bed depth reduction did not have a significant effect (p > 0.05) in terms of organic matter, solids, and ammonium removal. Conversely, it had a significant influence (p < 0.05) on phosphate as well as a negative effect on pathogen removal. This influence could be explained by initial media capacity for phosphorus removal and filtration importance in the case of pathogens. Partial saturation only had a positive influence on total nitrogen removal. The addition of a bottom layer of natural zeolite showed no positive effect on nutrient removal. The plant showed adaptation and positive development in both VF-N and VF-M. The water balance showed that water loss was not influenced by bed depth reduction. Therefore, according to the previous results, a combination of the proposal modifications to VSSF TWs can be introduced for treating rural domestic wastewater. View Full-Text

AB - The aim of this work was to evaluate the performance of vertical subsurface flow treatment wetlands (VSSF TWs) for treating rural domestic wastewater when strategies such as bed depth reduction and media change are used in combination with bottom saturation. Two treatment wetland systems were implemented: normal (VF-N), with a bed depth of 1.0 m, and modified (VF-M), with a bed depth of 0.5 m and a bottom layer of natural zeolite. Schoenoplectus californicus was used as experimental plant. These two treatment systems were operated at a hydraulic loading rate of 120 mm/d in two phases. Phase I did not use bottom saturation, while Phase II involved a bottom saturation of the zeolite layer of the VF-M system. The results show that bed depth reduction did not have a significant effect (p > 0.05) in terms of organic matter, solids, and ammonium removal. Conversely, it had a significant influence (p < 0.05) on phosphate as well as a negative effect on pathogen removal. This influence could be explained by initial media capacity for phosphorus removal and filtration importance in the case of pathogens. Partial saturation only had a positive influence on total nitrogen removal. The addition of a bottom layer of natural zeolite showed no positive effect on nutrient removal. The plant showed adaptation and positive development in both VF-N and VF-M. The water balance showed that water loss was not influenced by bed depth reduction. Therefore, according to the previous results, a combination of the proposal modifications to VSSF TWs can be introduced for treating rural domestic wastewater. View Full-Text

KW - nutrients; partial saturation; vertical subsurface flow treatment wetlands; zeolite

UR - https://www.mdpi.com/1660-4601/18/9

U2 - 10.3390/ijerph18094842

DO - 10.3390/ijerph18094842

M3 - Journal article

VL - 18

JO - International Journal of Environmental Research and Public Health

JF - International Journal of Environmental Research and Public Health

SN - 1661-7827

IS - 9

M1 - 4842

ER -