Detail publikačního výsledku

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

BÍLKOVÁ, Z.; HRICH, K.; MALÁ, J.; SCHRIMPELOVÁ, K.; KRIŠKA-DUNAJSKÝ, M.

Originální název

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

Anglický název

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

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

agricultural runoff; denitrifying bioreactor; organic compound leaching; start-up phase; wood-based materials

Klíčová slova v angličtině

agricultural runoff; denitrifying bioreactor; organic compound leaching; start-up phase; wood-based materials

Autoři

BÍLKOVÁ, Z.; HRICH, K.; MALÁ, J.; SCHRIMPELOVÁ, K.; KRIŠKA-DUNAJSKÝ, M.

Rok RIV

2019

Vydáno

07.06.2018

ISSN

2285-6064

Periodikum

Scientific Papers-Series E-Land Reclamation Earth Observation & Surveying Environmental Engineering

Svazek

VII

Číslo

2018

Stát

Rumunsko

Strany od

24

Strany do

31

Strany počet

8

URL

http://landreclamationjournal.usamv.ro/pdf/2018/vol2018.pdf

BibTex

@article{BUT150634,
  author="Zuzana {Bílková} and Karel {Hrich} and Jitka {Malá} and Kateřina {Schrimpelová} and Michal {Kriška-Dunajský}",
  title="Start-up phase of denitrifying bioreactors used for agricultural runoff treatment",
  journal="Scientific Papers-Series E-Land Reclamation Earth Observation & Surveying Environmental Engineering",
  year="2018",
  volume="VII",
  number="2018",
  pages="24--31",
  issn="2285-6064",
  url="http://landreclamationjournal.usamv.ro/pdf/2018/vol2018.pdf"
}