Naslov
Nitrogen removal from ammonium rich wastewater by nitrification and denitrification using an activated sludge
(Nitrogen removal from ammonium rich wastewater by nitrification and denitrification using an ativated sludge)

Autori
Jurković, J. ; Janežić, L. ; Glancer, Margareta ; Šoljan, Vice ; Toman, M.J.

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
8th IAWQ Conference on Design, Operation and Economics of Large Wastewater Treatment Plants / - Budimpešta : Budapest University of Technology and Economics, 1999, 472-475

Skup
8th IAWQ Conference on Design, Operation and Economics of Large Wastewater Treatment Plants

Mjesto i datum
Budimpešta, Mađarska, 06.09.1999. - 09.09.1999

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
denitrification; methanol; nitrification; nitrogen removal; pig slurry; predenitrification

Sažetak
Nitrogen removal from highly loaded pig farm wastewater was investigated. An activated sludge of several bacterial strains showing high nitrification activity was used in the experiments. The continuous nitrification/denitrification rate in a bench scale reactor was 59 gN/kg biomass,d with the addition of methanol, and 55 gN/kg biomass,d with addition of sodium acetate. The activated sludge also reduced the COD by more than 90%. The results show that methanol could be an appropriate carbon source with the peak activity achieved at the ratio C:N=2. The high nitrification rate and the low C:N ratio and the use of methanol as the carbon source make the process economically interesting.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

POVEZANOST RADA