Understanding wastewater treatment mechanisms a review on detection, removal, and purification efficiencies of faecal bacteria indicators across constructed wetlands

The specific mechanisms of faecal bacterial removal by constructed wetland (CW) mechanisms are inadequately understood. In several circumstances, CWs have been compared to “black box” systems involving poorly understood waste removal mechanisms despite being an emerging environmentally friendly wast...

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Bibliographic Details
Published inEnvironmental reviews Vol. 25; no. 4; pp. 444 - 451
Main Authors Donde, Oscar Omondi, Xiao, Bangding
Format Journal Article
LanguageEnglish
Published NRC Research Press 01.12.2017
Subjects
Constructed wetlands
contamination
efficacités
efficiencies
Environmental aspects
Escherichia coli
faecal
fécal
indicateurs
indicators
marais artificiels
Purification
Sewage
Sewage treatment
Waste management
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Summary:The specific mechanisms of faecal bacterial removal by constructed wetland (CW) mechanisms are inadequately understood. In several circumstances, CWs have been compared to “black box” systems involving poorly understood waste removal mechanisms despite being an emerging environmentally friendly waste management approach. This has therefore attracted numerous scientific studies to further unlock CWs’ functional mechanisms and to increase its efficiencies. This review paper covers detailed information on the status of detection techniques and removal efficiencies of faecal coliforms, with an emphasis on Escherichia coli. A comprehensive literature search was undertaken that involved a comparative review of various study results and critical analysis of previous scientific and review papers. The ultimate objective is to shed further light on the role of wetlands on wastewater purification for improved aquatic ecosystem health and clean water for humans and other organisms.
ISSN:1181-8700
1208-6053
DOI:10.1139/er-2017-0017