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Current Research Trends in the Application of Constructed Wetlands for Wastewater Remediation

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Wastewater Treatment and Reuse".

Deadline for manuscript submissions: closed (20 February 2024) | Viewed by 1824

Special Issue Editors


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Guest Editor
School of Environmental Science and Engineering, Shandong University, Jinan, China
Interests: advanced purification; wastewater reuse; constructed wetland; biologial nitrogen removal; greenhouse gases; emerging contaminants; resource and energy recovery
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
Interests: wastewater bioremediation; constructed wetland; wetland biogeochemistry; biochar; dissolved organic matter

Special Issue Information

Dear Colleagues,

Nowadays, increased levels of water consumption, and correspondingly high levels of pollution, have made water remediation essential for sustainable development. Constructed wetlands (CWs) are one of the most promising eco-technologies for water remediation, with proven efficiency and applications in both rural to urban, and even industrial, areas. The principles and influencing factors for pollutant removal of CWs have been extensively discussed, and various approaches have been conducted by researchers and practitioners to improve its treatment capacity and efficiency. Recently, CWs have faced new challenges, such as the removal of emerging pollutants, e.g., antibiotic, microplastic, and some persistent organic pollutants (POPs). Additionally, the query on the function of CWs in high latitude areas and its performance after long term operation are still issues of concern in the industry. Moreover, the public focus on the extreme climate events occurring in many parts of the globe also demand a rethinking of the ecological benefit of CWs.

Thus, we would like to invite you to provide comprehensive, up-to-date insight into recent trends and advances in the application of constructed wetlands for water remediation. We foresee that the papers compiled in this important Special Issue of Water would contribute to the further development and wider application of CWs as reliable and robust solutions for water remediation.

Prof. Dr. Zhen Hu
Prof. Dr. Haiming Wu
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • constructed wetland
  • water remediation
  • purification
  • sustainable development
  • emerging pollutants
  • climate change

Published Papers (1 paper)

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Research

14 pages, 4448 KiB  
Article
Efficacy of Nitrogen and Phosphorus Removal and Microbial Characterization of Combined A2O-MBBR Constructed Wetlands
by Jiawei Li, Kun Dong, Shaoyuan Bai, Yubing Fan, Yishan Feng, Meina Liang and Dunqiu Wang
Water 2023, 15(19), 3520; https://doi.org/10.3390/w15193520 - 9 Oct 2023
Cited by 1 | Viewed by 1328
Abstract
A combined anaerobic–anoxic–oxic moving bed biofilm reactor (A2O-MBBR) constructed wetlands process was used to treat low carbon-to-nitrogen (C/N) simulated sewage. The results showed that the removal rates of chemical oxygen demand (COD), ammonia nitrogen (NH4+-N), total nitrogen (TN), [...] Read more.
A combined anaerobic–anoxic–oxic moving bed biofilm reactor (A2O-MBBR) constructed wetlands process was used to treat low carbon-to-nitrogen (C/N) simulated sewage. The results showed that the removal rates of chemical oxygen demand (COD), ammonia nitrogen (NH4+-N), total nitrogen (TN), and total phosphorus (TP) by this process were 94.06%, 94.40%, 67.11%, and 84.57%, respectively, and the concentrations of COD, NH4+-N, TN, and TP in the effluent were lower than the Class I-A standard of GB18918-2002. In the anoxic zone, NH4+-N had an inhibitory effect on phosphorus uptake via phosphorus-accumulating organisms (PAOs). The highest community diversity was observed in the anoxic zone sludge at 24 d. During the water-quality-shock loads stage, microbial community diversity decreased in a combined A2O-MBBR constructed wetlands reactor. At the phylum level, bacteria within the mature activated sludge were dominated by Proteobacteria, while Planctomycetes bacteria were the dominant species in the constructed wetlands. At the genus level, Tolumonas spp. were the dominant species in the 12 d and 24 d constructed wetlands and the anaerobic zone, with relative abundance percentages ranging from 20.24 to 33.91%. In the water-quality-shock loads stage, they were replaced by denitrifying bacteria such as Herbaspirillum spp. Unclassified_Burkholderiales was the dominant species in the constructed wetlands, with a relative abundance of 33.09%. Full article
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