Performance of experimental bioretention cells during the first year of operation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00355840" target="_blank" >RIV/68407700:21110/22:00355840 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21720/22:00355840
Result on the web
<a href="https://doi.org/10.2478/johh-2021-0038" target="_blank" >https://doi.org/10.2478/johh-2021-0038</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2478/johh-2021-0038" target="_blank" >10.2478/johh-2021-0038</a>

Result language
angličtina
Original language name
Performance of experimental bioretention cells during the first year of operation
Original language description
Detailed data on the long-term performance of bioretention cells (BC) for stormwater management are sparse. This research aimed at setting up and testing an infrastructure that will provide the data on hydrologic and chemical performance of BC. Two identical experimental BC’s were built. The monitoring methodology monitoring was developed and tested during a first growing season with the first BC supplied with natural rainfall, while the second BC was used for ponding experiments. Key layer of the BCs, a biofilter, was composed of sand, compost and topsoil. Both BCs are equipped with sensors monitoring the components of water balance and the water potential of the biofilter. High levels of total suspended solids were detected in the outflow. The runoff coefficient for the entire period of the growing season was 0.72 in the first BC and 0.86 in the second BC, while the peak outflow reduction for individual rainfall episodes ranged between 75% to 95% for the first BC and 19% to 30% for the second BC. Saturated hydraulic conductivity of the biofilter in the first BC decreased by two orders of magnitudes after the first year of operation. Retention curves of the biofilter changed due to material consolidation.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20701 - Environmental and geological engineering, geotechnics

Project
<a href="/en/project/GA17-21011S" target="_blank" >GA17-21011S: Transport of water, suspended solids and heat in engineered soils of urban green infrastructure</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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