94% of researchers rate our articles as excellent or good
Learn more about the work of our research integrity team to safeguard the quality of each article we publish.
Find out more
ORIGINAL RESEARCH article
Front. Environ. Sci.
Sec. Water and Wastewater Management
Volume 13 - 2025 | doi: 10.3389/fenvs.2025.1559624
This article is part of the Research Topic Diffuse Agricultural Water Pollution: Nutrient Capture, Recovery, and Recycling Systems View all 8 articles
Impact Analysis of Constructed Wetland for Wastewater Management in Rwanda
Provisionally accepted
JUSTIN NSANZABAGANWA 1,2
Chen Xi 1*
Tie Liu 1 Egide Hakorimana 1 Richard Mind'je 1,2 Marie Louise Mujawayezu 2 Aboubakar Gasirabo 1 Umugwaneza Adeline 1 Niyonsenga Schadrack 2- 1 University of Chinese Academy of Sciences, Beijing, Beijing, China
- 2 University of Lay Adventists of Kigali, Kigali, Kigali City, Rwanda
Constructed wetland (CW) is easily operated and maintained, and has low cost and strong potential for application in urban areas than conventional treatment systems. Although CWs are useful in wastewater management; they are not yet more applied in Rwanda. This study aimed to analyze the impact of constructed wetland for wastewater treatment located in Gasabo district, Kigali City of Rwanda for water pollution dipping by testing eight physico-chemical parameters such as: pH, TN, TP, TSS, TDS, COD, BOD, and DO in the samples collected at the influents and effluents of the CW during rainy and dry seasons in twelve months of year 2023, relating their concentrations with standards of the World Health Organization (WHO), determining the CW removal efficiency and finally, to provide summary of measurement by the CCME-WQI. The results revealed that, the most parameters have been exceeding the standards before being treated, then after all effluents responded to standard conditions. The removal efficiencies in both seasons valued between 16-80% which presented a good concert in treatment. Furthermore, the index showed a high pollution on influent which was counted 42.1 and 46.4 in both dry and rain seasons respectively as poor and marginal quality, on the other side of effluent the results indicated 87.7and 89.1 ranked as good quality. These above values demonstrated the effective performance of constructed wetland regarding the production of the effluent that met the specified water quality standard despite elevated influent concentrations in terms of pollutants. Further application of CW in other organizations/institutions (public and private) is greatly suggested to treat their wastewater before reaching water flows in the environment
Keywords: constructed wetland, Effluent, Influent, Rwanda, wastewater treatment
Received: 13 Jan 2025; Accepted: 27 Feb 2025.
Copyright: © 2025 NSANZABAGANWA, Xi, Liu, Hakorimana, Mind'je, Mujawayezu, Gasirabo, Adeline and Schadrack. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Chen Xi, University of Chinese Academy of Sciences, Beijing, 10049, Beijing, China
Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.