Proceedings of the National Conference on Next-Generation Sustainable Technologies for Small-Scale Producers (NGST 2022)

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The removal of glyphosate in agricultural runoff by hybrid constructed wetland mesocosms

Authors
Dominae Smith1, Zepei Tang1, Niroj Aryal1, *
1Department of Natural Resources and Environmental Design, North Carolina Agricultural and Technical State University, Greensboro, NC, USA
*Corresponding author. Email: naryal@ncat.edu
Corresponding Author
Niroj Aryal
Available Online 22 November 2023.
DOI
10.2991/978-94-6463-282-8_21How to use a DOI?
Keywords
Pesticides; surface flow wetland; subsurface flow wetland; treatment wetlands; ecological engineering; nature-based solutions; agrochemicals; agricultural wastewater
Abstract

Glyphosate is a commonly used herbicide in agriculture. However, glyphosate finds its way into the environment after application as it leaches or runs off into water bodies. Hybrid constructed wetland mesocosms consisting of surface flow wetland planted with duckweed and subsurface flow wetland planted with cattails and bulrush were used as a means for treatment of agricultural runoff containing glyphosate. Analysis of water samples after passing through the two-state wetlands was used to evaluate the removal of agrochemicals by wetlands and variation in removal with each pulse loading. The results indicated that removal of glyphosate by surface flow wetlands was 80%, 69%, and 59% for each pulsed event indicating the removal rate may decrease over time. However, the addition of subsurface flow wetland achieved 94%, 97% and 97% removal. Consequently, establishing or adding a hybrid flow component to existing wetlands may achieve higher removal of agrochemicals, like glyphosate. Evaluation of the nature-based passive treatment solutions to agricultural non-point source pollution is important to help keep our water safe and clean.

Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the National Conference on Next-Generation Sustainable Technologies for Small-Scale Producers (NGST 2022)
Series
Advances in Biological Sciences Research
Publication Date
22 November 2023
ISBN
978-94-6463-282-8
ISSN
2468-5747
DOI
10.2991/978-94-6463-282-8_21How to use a DOI?
Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Dominae Smith
AU  - Zepei Tang
AU  - Niroj Aryal
PY  - 2023
DA  - 2023/11/22
TI  - The removal of glyphosate in agricultural runoff by hybrid constructed wetland mesocosms
BT  - Proceedings of the National Conference on Next-Generation Sustainable Technologies for Small-Scale Producers (NGST 2022)
PB  - Atlantis Press
SP  - 186
EP  - 206
SN  - 2468-5747
UR  - https://doi.org/10.2991/978-94-6463-282-8_21
DO  - 10.2991/978-94-6463-282-8_21
ID  - Smith2023
ER  -