Naslov
Influence of Side Stream Supersaturated Aeration Technology on Membrane Fouling and Azithromycin Removal in a Membrane Bioreactor

Autori
KIM, Sang Yeob ; ARDITO, Giovanna Guarinoni ; ĆURKO, Josip ; GARCIA HERNANDEZ, Hector ; MATOŠIĆ, Marin

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

Izvornik
11th Micropol & Ecohazard Conference 2019 PROCEDINGS / ZOH, Kyung-Duk - Seoul : International Water Association Publications (IWA), 2019, 312-313

Skup
11th Micropol & Ecohazard Conference 2019

Mjesto i datum
Seoul, Republika Koreja, 20.10.2019. - 24.10.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
membrane bioreactor ; azithromycin ; membrane fouling

Sažetak
A bench scale membrane bioreactor (MBR) fed synthetic wastewater was operated under two different aeration systems to assess the effect of a side stream super oxygenation system (SDOX). Particularly, the effects of this aeration system on the biological performance of organic matter removal and nitrification along with membrane fouling, and azithromycin removal were assessed. Four different experiments were carried out by changing some operational conditions including mixed liquor suspended solids (MLSS) concentration, aeration types, membrane flux, and the presence of azithromycin as a micro-pollutant in the influent. The MBR was operated for approximately 15 days with fine bubble diffusers followed by SDOX. The negative effect of the high pressure on the organic matter removal and nitrification was insignificant. The effect of SDOX on other sludge characteristics was noticeable: the particle size of the sludge floc decreased (44-64%), whereas the diluted sludge volume index (DSVI) increased. Hydraulic retention time was found to have a greater impact on membrane fouling than the high pressure effect. Regarding the azithromycin removal efficiency, the SDOX had a detrimental impact on the overall removal efficiency of azithromycin.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija, Prehrambena tehnologija, Interdisciplinarne biotehničke znanosti

POVEZANOST RADA