Giovanna Guarinoni Ardito (Uruguay)

IHE Delft│Netherlands & UNIVALLE│Colombia

Influence of supersaturated oxygen on membrane fouling and azithromycin removal in an MBR (Croatia)

In my research I compared the effect of aeration using supersaturated oxygen (SDOX) with bubble diffusers on biological performance (COD, nitrate and phosphorous in the effluent), sludge characteristics, azithromycin removal and membrane fouling in a membrane bioreactor (MBR). The effect of SDOX on sludge characteristics showed a significant decrease in particle size, without increasing the membrane fouling. The SDOX did not increase the biological performance when compared to bubble aeration. The SDOX negatively affected the overall removal efficiency of azithromycin. More study is necessary to understand the mechanisms playing a role in the case of aeration with supersaturated oxygen.