Constructed Wetlands as a Sustainable Technology for Wastewater Treatment: Current Trends and Future Potential

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

Deadline for manuscript submissions: 20 July 2024 | Viewed by 628

Special Issue Editor


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Guest Editor
School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
Interests: constructed wetland; water treatment; water reuse; geochemical cycle; biochar; organic pollutant; heavy metal
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Special Issue Information

Dear Colleagues,

Constructed wetland is a comprehensive ecosystem. It applies the principle of species symbiosis, material recycling and regeneration in the ecosystem, and the principle of structure and function coordination. Under the premise of promoting the benign circulation of pollutants in wastewater, it enables the full range of the production potential of resources, prevents environmental re-pollution, and achieves the best benefits of sewage treatment and resource utilization.

In recent years, scholars have put forward many advanced techniques to solve the problems of constructed wetland, such as low purification efficiency in low-temperature seasons and poor long-term operation stability, which seriously affects the sustainable and stable performance of its functions. With the development of environmental problems, more challenges have been posed to constructed wetlands, such as carbon emission reduction, new pollutant treatment, etc. Therefore, I organized this Special Issue, hoping to publish the research results in more than the following aspects.

(1) Design and construction scheme of new constructed wetland and its effect on pollutant removal.

(2) The role of constructed wetland in the removal of new pollutants, and the migration and transformation of new pollutants in wetland system.

(3) Application of constructed wetland technology in the context of carbon neutral policy.

(4) The geochemical cycling of important substances or elements in constructed wetlands to promote pollutant removal.

Dr. Zizhang Guo
Guest Editor

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Keywords

  • constructed wetland
  • design
  • new pollutants
  • migration and transformation
  • carbon neutral
  • geochemical cycling

Published Papers (1 paper)

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Research

13 pages, 3865 KiB  
Article
Bibliometric Analysis of Nitrogen Removal in Constructed Wetlands: Current Trends and Future Research Directions
by Jiahao Dong and Shaoping Kuang
Water 2024, 16(10), 1453; https://doi.org/10.3390/w16101453 - 20 May 2024
Viewed by 330
Abstract
Nitrogen pollution in water environments has reached critical levels globally, primarily stemming from agricultural runoff, industrial discharges, and untreated sewage. The excessive presence of nitrogen compounds poses a significant threat to water quality, leading to adverse impacts on ecosystems and human health. Reaching [...] Read more.
Nitrogen pollution in water environments has reached critical levels globally, primarily stemming from agricultural runoff, industrial discharges, and untreated sewage. The excessive presence of nitrogen compounds poses a significant threat to water quality, leading to adverse impacts on ecosystems and human health. Reaching a breakthrough in the technology of constructed wetlands (CWs) for mitigating nitrogen pollution is hindered by existing knowledge gaps regarding the mechanisms involved in the removal process. Reaching this understanding, we offer a comprehensive summary of current advancements and theories in this research field. Initially, bibliometric techniques were employed to identify yearly patterns in publications and areas of research focus. Subsequently, the chosen documents underwent statistical analysis using VOSviewer_1.6.20 to determine countries’ annual productivity, significant publication years, influential authors, keyword clustering analysis, and more. Finally, a comprehensive overview is provided on the elimination of nitrogen through CWs, encompassing insights into microbial communities and structure types. This analysis aims to uncover potential strategies for optimizing the rate of nitrogen removal. Furthermore, this study elucidates the current research trend concerning the nitrogen removal performance of CWs and identifies challenges and future research directions in this field. Full article
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