Analysis of the removal of BOD5, COD and suspended solids in subsurface flow constructed wetland in Latvia

Linda Grinberga (Coresponding Author), Dagnija Grabuža, Inga Grinfelde, Didzis Lauva, Armands Celms, Wojciech Sas, Andrzej Głuchowski, Justyna Dzięcioł

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This study aims to evaluate the performance of subsurface flow constructed wetland in Latvia which was established to receive storm water from surface runoff from a farmjard in agricultural area. As a part of this study, subsurface horizontal flow wetlands was monitored, in order to evaluate the changes in the efficiency
of treatment depending on biological factors. The efficiency of horizontal subsurface flow constructed wetland was evaluated by comparing the concentration of total suspended solids (TSS), biochemical oxygen demand (BOD5) and chemical oxygen (COD) at inlet and outlet of the wetland depending on temperature and
pH. Since June 2014, water quality monitoring in a research site in the farm “Mezaciruli”, Zaļenieku parish, Jelgava region has been carried out to treat the point source agricultural runoff from the impermeable pavements. The analysis of the data obtained in the monitoring allows to draw conclusions about the influence of
certain factors in the subsurface flow constructed wetlands under the climate and environmental conditions in Latvia.
Original languageEnglish
Pages (from-to)21-28
JournalActa Scientiarum Polonorum. Architectura
Issue number4
Publication statusPublished - 12 Dec 2021

Field of Science*

  • 1.5 Earth and related Environmental sciences

Publication Type*

  • 1.4. Reviewed scientific article published in Latvia or abroad in a scientific journal with an editorial board (including university editions)


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