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Potentialities of manganese ore and iron-carbon particles for pharmaceuticals and personal care products removal in electroactive constructed wetland

Liu, Shentan ; Gou, Jiang ; Feng, Xiaojuan and Pyo, Sang-Hyun LU (2025) In Journal of Environmental Management 386.
Abstract
This study explores the use of manganese ore, iron-carbon particles (Fe-C), and gravel as anode fillers in electroactive constructed wetlands (ECWs) to treat wastewater containing pharmaceuticals and personal care products (PPCPs) including ciprofloxacin (CIP), ofloxacin (OFL), and naproxen (NPX), while also assessing bioelectricity production. Although the presence of PPCPs reduced pollutant removal and electricity generation, ECWs outperformed conventional CWs. Specifically, Fe-C ECWs (FC-ECWs) achieved high COD and NPX removal efficiencies of 90.15 % and 62.25 %, respectively, along with the highest power density of 13.25 mW/m2. In contrast, manganese ore ECWs (Mn-ECWs) were more effective at removing... (More)
This study explores the use of manganese ore, iron-carbon particles (Fe-C), and gravel as anode fillers in electroactive constructed wetlands (ECWs) to treat wastewater containing pharmaceuticals and personal care products (PPCPs) including ciprofloxacin (CIP), ofloxacin (OFL), and naproxen (NPX), while also assessing bioelectricity production. Although the presence of PPCPs reduced pollutant removal and electricity generation, ECWs outperformed conventional CWs. Specifically, Fe-C ECWs (FC-ECWs) achieved high COD and NPX removal efficiencies of 90.15 % and 62.25 %, respectively, along with the highest power density of 13.25 mW/m2. In contrast, manganese ore ECWs (Mn-ECWs) were more effective at removing NH4+-N, CIP, and OFL, with removal efficiencies of 42.08 %, 67.12 %, and 61.60 %, respectively. Notably, ECWs also facilitated the accumulation of qnrS resistance genes. FC-ECWs promoted both qnrS and intI gene expression, while Mn-ECWs inhibited the spread of antibiotic resistance genes (ARGs). Microbial analysis revealed that Firmicutes in Fe-C correlated with increased bioelectricity production. Additionally, genera like Enterobacter and Proteiniclasticum might act as ARG hosts. These findings highlight the innovation of using different anode fillers to optimize both pollutant removal and bioelectricity generation in ECWs, while also addressing the critical issue of ARG proliferation in wastewater treatment systems. (Less)
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Environmental Management
volume
386
article number
125784
pages
12 pages
publisher
Academic Press
external identifiers
  • scopus:105004883640
  • pmid:40373450
ISSN
0301-4797
DOI
10.1016/j.jenvman.2025.125784
language
English
LU publication?
yes
id
94623274-6d3b-44cc-8829-f7dc98860c17
date added to LUP
2025-10-20 15:02:54
date last changed
2025-10-28 03:00:02
@article{94623274-6d3b-44cc-8829-f7dc98860c17,
  abstract     = {{This study explores the use of manganese ore, iron-carbon particles (Fe-C), and gravel as anode fillers in electroactive constructed wetlands (ECWs) to treat wastewater containing pharmaceuticals and personal care products (PPCPs) including ciprofloxacin (CIP), ofloxacin (OFL), and naproxen (NPX), while also assessing bioelectricity production. Although the presence of PPCPs reduced pollutant removal and electricity generation, ECWs outperformed conventional CWs. Specifically, Fe-C ECWs (FC-ECWs) achieved high COD and NPX removal efficiencies of 90.15 % and 62.25 %, respectively, along with the highest power density of 13.25 mW/m<sup>2</sup>. In contrast, manganese ore ECWs (Mn-ECWs) were more effective at removing NH<sub>4</sub><sup>+</sup>-N, CIP, and OFL, with removal efficiencies of 42.08 %, 67.12 %, and 61.60 %, respectively. Notably, ECWs also facilitated the accumulation of qnrS resistance genes. FC-ECWs promoted both qnrS and intI gene expression, while Mn-ECWs inhibited the spread of antibiotic resistance genes (ARGs). Microbial analysis revealed that <em>Firmicutes</em> in Fe-C correlated with increased bioelectricity production. Additionally, genera like <em>Enterobacter</em> and <em>Proteiniclasticum</em> might act as ARG hosts. These findings highlight the innovation of using different anode fillers to optimize both pollutant removal and bioelectricity generation in ECWs, while also addressing the critical issue of ARG proliferation in wastewater treatment systems.}},
  author       = {{Liu, Shentan and Gou, Jiang and Feng, Xiaojuan and Pyo, Sang-Hyun}},
  issn         = {{0301-4797}},
  language     = {{eng}},
  month        = {{06}},
  publisher    = {{Academic Press}},
  series       = {{Journal of Environmental Management}},
  title        = {{Potentialities of manganese ore and iron-carbon particles for pharmaceuticals and personal care products removal in electroactive constructed wetland}},
  url          = {{http://dx.doi.org/10.1016/j.jenvman.2025.125784}},
  doi          = {{10.1016/j.jenvman.2025.125784}},
  volume       = {{386}},
  year         = {{2025}},
}