Treatment of Storm Water from Agricultural Catchment in Pilot Scale Constructed Wetland

Constructed wetlands as a treatment system are widely explored in different climate conditions and established to be effective in pollution removal from water environment. This study aims to demonstrate the performance of pilot-scale subsurface flow constructed wetland for storm water treatment in L...

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Autores principales:	Grinberga Linda, Lauva Didzis, Lagzdins Ainis
Formato:	article
Lenguaje:	EN
Publicado:	Sciendo 2021
Materias:	constructed wetland nutrients removal subsurface flow Renewable energy sources TJ807-830
Acceso en línea:	https://doaj.org/article/bf3b3c1eae2248dcb5217a2a299be59e
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id	oai:doaj.org-article:bf3b3c1eae2248dcb5217a2a299be59e
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spelling	oai:doaj.org-article:bf3b3c1eae2248dcb5217a2a299be59e2021-12-05T14:11:11ZTreatment of Storm Water from Agricultural Catchment in Pilot Scale Constructed Wetland2255-883710.2478/rtuect-2021-0048https://doaj.org/article/bf3b3c1eae2248dcb5217a2a299be59e2021-01-01T00:00:00Zhttps://doi.org/10.2478/rtuect-2021-0048https://doaj.org/toc/2255-8837Constructed wetlands as a treatment system are widely explored in different climate conditions and established to be effective in pollution removal from water environment. This study aims to demonstrate the performance of pilot-scale subsurface flow constructed wetland for storm water treatment in Latvia. The catchment basin was located in a farmyard of agricultural area and storm water was collected from the impermeable pavements. Storm water was accumulated in an open pond and periodically pumped above the filter part of the subsurface flow constructed wetland. Grab samples were collected once or twice per month at the inlet and outlet of the treatment system during a period of 73 months from year 2014 to 2020. Water quality parameters as nitrate nitrogen (NO3-N), ammonium nitrogen (NH4–N), total nitrogen (TN), orthophosphate phosphorus (PO4-P), and total phosphorus (TP), total suspended solids (TSS), biochemical oxygen demand (BOD5) and chemical oxygen demand (COD) were monitored. Water level at the inlet structure was automatically measured and flow rate was calculated based on the Manning equation for partially filled circular pipes. Results showed the reduction of average concentrations for all parameters during the study period. However, in some sampling cases concentrations increased at the outlet of the treatment system and can be explained by influencing factors of farming and maintenance. The treatment efficiency of NO3-N, NH4-N, TN, PO4-P, TP, TSS, BOD5 and COD concentrations was 17 %, 68 %, 55 %, 78 %, 80 %, 57 %, 80 % and 74 %, respectively. The study site demonstrated a potential to improve water quality in the long term.Grinberga LindaLauva DidzisLagzdins AinisSciendoarticleconstructed wetlandnutrientsremovalsubsurface flowRenewable energy sourcesTJ807-830ENEnvironmental and Climate Technologies, Vol 25, Iss 1, Pp 640-649 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	constructed wetland nutrients removal subsurface flow Renewable energy sources TJ807-830
spellingShingle	constructed wetland nutrients removal subsurface flow Renewable energy sources TJ807-830 Grinberga Linda Lauva Didzis Lagzdins Ainis Treatment of Storm Water from Agricultural Catchment in Pilot Scale Constructed Wetland
description	Constructed wetlands as a treatment system are widely explored in different climate conditions and established to be effective in pollution removal from water environment. This study aims to demonstrate the performance of pilot-scale subsurface flow constructed wetland for storm water treatment in Latvia. The catchment basin was located in a farmyard of agricultural area and storm water was collected from the impermeable pavements. Storm water was accumulated in an open pond and periodically pumped above the filter part of the subsurface flow constructed wetland. Grab samples were collected once or twice per month at the inlet and outlet of the treatment system during a period of 73 months from year 2014 to 2020. Water quality parameters as nitrate nitrogen (NO3-N), ammonium nitrogen (NH4–N), total nitrogen (TN), orthophosphate phosphorus (PO4-P), and total phosphorus (TP), total suspended solids (TSS), biochemical oxygen demand (BOD5) and chemical oxygen demand (COD) were monitored. Water level at the inlet structure was automatically measured and flow rate was calculated based on the Manning equation for partially filled circular pipes. Results showed the reduction of average concentrations for all parameters during the study period. However, in some sampling cases concentrations increased at the outlet of the treatment system and can be explained by influencing factors of farming and maintenance. The treatment efficiency of NO3-N, NH4-N, TN, PO4-P, TP, TSS, BOD5 and COD concentrations was 17 %, 68 %, 55 %, 78 %, 80 %, 57 %, 80 % and 74 %, respectively. The study site demonstrated a potential to improve water quality in the long term.
format	article
author	Grinberga Linda Lauva Didzis Lagzdins Ainis
author_facet	Grinberga Linda Lauva Didzis Lagzdins Ainis
author_sort	Grinberga Linda
title	Treatment of Storm Water from Agricultural Catchment in Pilot Scale Constructed Wetland
title_short	Treatment of Storm Water from Agricultural Catchment in Pilot Scale Constructed Wetland
title_full	Treatment of Storm Water from Agricultural Catchment in Pilot Scale Constructed Wetland
title_fullStr	Treatment of Storm Water from Agricultural Catchment in Pilot Scale Constructed Wetland
title_full_unstemmed	Treatment of Storm Water from Agricultural Catchment in Pilot Scale Constructed Wetland
title_sort	treatment of storm water from agricultural catchment in pilot scale constructed wetland
publisher	Sciendo
publishDate	2021
url	https://doaj.org/article/bf3b3c1eae2248dcb5217a2a299be59e
work_keys_str_mv	AT grinbergalinda treatmentofstormwaterfromagriculturalcatchmentinpilotscaleconstructedwetland AT lauvadidzis treatmentofstormwaterfromagriculturalcatchmentinpilotscaleconstructedwetland AT lagzdinsainis treatmentofstormwaterfromagriculturalcatchmentinpilotscaleconstructedwetland
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Treatment of Storm Water from Agricultural Catchment in Pilot Scale Constructed Wetland

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