Natural wetlands contribution on phosphorus removal in small northern communities in Canada. Issue 1 (2nd January 2023)

• Record Type: Journal Article
• Authors: Karpisek, Vanja; Hasnine, MD Tanvir; Cicek, Nazim; Yuan, Qiuyan
• Is Part Of: Environmental technology. Volume 44:Issue 1(2023)
• Page Start: 130
• Page End: 138
• Publication Date: 2023-01-02
• Subjects: Total phosphorous -- Meleb soil -- hydraulic loading rate -- phosphorus removal efficiency -- Natural wetland‌; Environmental engineering -- Periodicals; Environmental protection -- Periodicals; 628.05
• DOI: 10.1080/09593330.2021.1965221
• Languages: English
• ISSNs: 0959-3330

Abstract

ABSTRACT: This study focuses on understanding the role of passive wastewater treatment (wastewater lagoon plus wetland) in reducing the phosphorus discharge levels in a northern small community in Manitoba, Canada. The facultative lagoon system of that small community treats domestic wastewater and seasonally discharges effluent into a wetland that connects to Lake Manitoba. This research assesses phosphorus removal efficiency through the natural wetland during the vegetation growing season. The average total phosphorus (TP) concentration reduction for the observed treatment area of 1.3 ha was more than 70%, achieving the desired TP discharge concentration below 1 mg/L. Data analysis showed that the main accumulation of TP occurred at the 21–40 cm soil depth, which indicates the potential of natural wetland treatment applications under cold continental climate conditions as an effluent polishing step to satisfy regulatory requirements for phosphorus reduction. GRAPHICAL ABSTRACT: UF0001