Natural wetlands contribution on phosphorus removal in small northern communities in Canada.
Environ Technol
; 44(1): 130-138, 2023 Jan.
Article
em En
| MEDLINE
| ID: mdl-34353227
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 1â
mg/L. Data analysis showed that the main accumulation of TP occurred at the 21-40â
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.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Áreas Alagadas
/
Águas Residuárias
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Environ Technol
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Canadá