Pollutant removal from municipal sewage lagoon effluents with a free-surface wetland

Water Research
Kimberley CameronChristopher Kinsley

Abstract

This research project was initiated to refine the knowledge available on the treatment of rural municipal wastewater by constructed wetlands. To determine the treatment capacity of a constructed wetland system receiving municipal lagoon effluents, the wetland was monitored over one treatment season, from May 19 to November 3, 2000. The wetland system consisted of a three-cell free-surface wetland, phosphorus adsorption slag filters and a vegetated filter strip. Bimonthly water samples at the inlet and outlet of each component of the wetland system were analysed for biochemical oxygen demand, nitrate and nitrite, ammonia and ammonium, total Kjeldahl nitrogen (TKN), total suspended solids (TSS), total phosphorus (TP), ortho-phosphate (ortho-PO(4)), fecal coliforms (FCs) and Escherichia coli. The free-surface wetland cells treating the lagoon effluents achieved removals as follows: biochemical oxygen demand (34%), ammonia and ammonium (52%), TKN (37%), TSS (93%), TP (90%), ortho-PO(4) (82%), FCs (52%) and E. coli (58%). The wetland cells reduced total nitrogen, TP and biochemical oxygen demand to levels below the maximum permissible levels required for direct discharge to nearby receiving waters (TN<3.0 mg x L(-1), TP<0.3 mg x L(-...Continue Reading

Citations

Jul 24, 2013·BioMed Research International·Qaisar MahmoodSumera Afsheen
Jun 9, 2018·International Journal of Environmental Research and Public Health·Celia De La Mora-OrozcoJesús Manuel Ochoa-Rivero
Jun 7, 2011·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Leah BoutilierCraig Lake
Jan 18, 2017·Environmental Science and Pollution Research International·Xianqiang TangZhenhua Wang
Feb 27, 2017·Applied Biochemistry and Biotechnology·Roya PishgarJoo Hwa Tay
May 21, 2009·Environmental Science & Technology·Lawrence I BowdenKaren L Johnson
Aug 20, 2018·The Science of the Total Environment·Lotfi AleyaPascale Bourgeade

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