Three-stage constructed wetland for on-site wastewater treatment

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25173154%3A_____%2F10%3A%230000158" target="_blank" >RIV/25173154:_____/10:#0000158 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Three-stage constructed wetland for on-site wastewater treatment
Original language description
Three-stage constructed wetland for treatment of municipal sewage consists of a saturated vertical flow wetland, free-drain vertical wetland and horizontal subsurface flow wetland staged in series. After the second stage the water is recirculated (1:1) to the first wetland. This arrangement was selected in order to primarily achieve high removal of both ammonia and nitrate. The average COD concentrations were 245, 102, 48 and 40 mg L-1 in the inflow and after each stage, respectively with the last concentration representing the final outflow. Removal of ammonia-N was also very efficient with respective concentrations of 26.6, 18.2, 2.7 and 2.8 mg L-1. The oxidation of ammonia-N took place in the second (freedrain) vertical stage and interestingly the NH4-N concentration remained below 2 mg L-1 during the whole January 2010 when the air temperatures were constantly below 0°C and occasionally dropped down to -20°C.
Czech name
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Czech description
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Project
<a href="/en/project/ME%20876" target="_blank" >ME 876: The use of constructed wetlands with intermittent vertical flow for wastewaters treatment</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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