Start-up phase of denitrifying bioreactors used for agricultural runoff treatment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU129375" target="_blank" >RIV/00216305:26110/18:PU129375 - isvavai.cz</a>

Výsledek na webu

<a href="http://landreclamationjournal.usamv.ro/pdf/2018/vol2018.pdf" target="_blank" >http://landreclamationjournal.usamv.ro/pdf/2018/vol2018.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Start-up phase of denitrifying bioreactors used for agricultural runoff treatment

Popis výsledku v původním jazyce

Denitrifying bioreactors are a useful passive treatment technology for the removal of nitrates from agricultural runoff. The start-up phase is the most critical period of their operation. In this phase, denitrification rates gradually increase and organic compounds, which are necessary for denitrification, are released from the bioreactor fill media in excessive amounts. The aim of our study was to evaluate the start-up phase of laboratory denitrifying bioreactors filled with six wood-based materials. The effluent quality of all bioreactors achieved a steady state after max. 9 weeks. The denitrification rates at the end of this period ranged from 0.16 to 5.8 g/m(3)/d. Initial outlet chemical oxygen demand and biochemical oxygen demand leaching rates, which were in the hundreds and tenths of g/m(3)/d, respectively, decreased below 55 and 30 g/m(3)/d, respectively. Based on the results reported both for the leaching of organic compounds and the removal of nitrates, poplar seems to be the most suitable denitrifying bioreactor fill medium out of all the tested materials.

Název v anglickém jazyce

Start-up phase of denitrifying bioreactors used for agricultural runoff treatment

Popis výsledku anglicky

Denitrifying bioreactors are a useful passive treatment technology for the removal of nitrates from agricultural runoff. The start-up phase is the most critical period of their operation. In this phase, denitrification rates gradually increase and organic compounds, which are necessary for denitrification, are released from the bioreactor fill media in excessive amounts. The aim of our study was to evaluate the start-up phase of laboratory denitrifying bioreactors filled with six wood-based materials. The effluent quality of all bioreactors achieved a steady state after max. 9 weeks. The denitrification rates at the end of this period ranged from 0.16 to 5.8 g/m(3)/d. Initial outlet chemical oxygen demand and biochemical oxygen demand leaching rates, which were in the hundreds and tenths of g/m(3)/d, respectively, decreased below 55 and 30 g/m(3)/d, respectively. Based on the results reported both for the leaching of organic compounds and the removal of nitrates, poplar seems to be the most suitable denitrifying bioreactor fill medium out of all the tested materials.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

<a href="/cs/project/QJ1520280" target="_blank" >QJ1520280: Udržitelná technologie pro odstranění dusičnanů ze zemědělských smyvů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

SCIENTIFIC PAPERS-SERIES E-LAND RECLAMATION EARTH OBSERVATION & SURVEYING ENVIRONMENTAL ENGINEERING

ISSN

2285-6064

e-ISSN

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Svazek periodika

VII

Číslo periodika v rámci svazku

2018

Stát vydavatele periodika

RO - Rumunsko

Počet stran výsledku

8

Strana od-do

24-31

Kód UT WoS článku

000446219500005

EID výsledku v databázi Scopus

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