Naslov
Capacity of activated sludge for nitrification and denitrification

Autori
Štefanac, Tea ; Grgas, Dijana ; Gras, Vitka ; Prodan, Morena ; Landeka Dragičević, Tibela

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
New Technologies in Water Sector Book of Abstracts / Maryna, Feierabend ; Olha, Novytska ; Dražen, Vouk ; Monika, Šabić - Zagreb, 2018, 269-270

ISBN
978-953-8168-23-9

Skup
10th Eastern European Young Water Professionals Conference - New technologies in Water Sector

Mjesto i datum
Zagreb, Hrvatska, 07.05.2018. - 12.05.2018

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
activated sludge, nitrification, denitrification

Sažetak
The capacity of activated sludge for nitrification and denitrification was monitored in batch experiments. Nitrification at different environmental conditions (pH and dissolved oxygen), and denitrification at different C/N ratios were performed. Sodium acetate (NaAc) was used as a source of carbon at a ratio of C/N 1-5. The nitrification process resulted in total nitrification at pH 7, 2-7, 3 and pH 7, 9-8, 0 at DO>1 mg/L. Nitritation was favorized at pH 7, 9-8, 0 and DO<1 mg/L. Denitrification at a rate of 45, 6 mg NO3-N/Lh, and the specific denitrification at a rate of 11, 2 mg NO3-N/g MLSS h during denitrification at C/N 3 were determined. Activated sludge from a municipal wastewater treatment plant in a concentration of 4.0±0.2 g MLSS/L was used in all experiments.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

POVEZANOST RADA