Preliminary assessment of combination of membrane technologies for nutrient removals from domestic wastewaterMože Davidović, Matevž (Avtor) Simonič, Marjana (Mentor) Ferrera León, Elvira (Komentor) Wastewater treatmentbioreactorsionsmicroalgaeultrafiltrationbiomassphotobioreactorsnutrient recyclingbacteriamicrobial activitydomestic wastewater.  The study focuses on wastewater treatment by investigating the use of microalgae in cooperation with bacteria, in combination with ultrafiltration and membrane photobioreactors. This approach also enables the extraction of nutrients retained by the organisms, referred to as biomass, which can subsequently be utilised. Three different water samples were tested and introduced into the same system. The first sample was the influent water, the second was the mixed liquor, in which microalgae function in a consortium with bacteria, and the third was the effluent water, referred to as permeate. Parameters such as pH, electrical conductivity, turbidity, suspended solids, chemical oxygen demand, inorganic and organic carbon, organic content, and ion concentration were analysed using standard procedures. Certain samples required filtration for specific analyses. The results indicated that measured values varied among the three samples, which is expected, as certain inorganic compounds are consumed as nutrients for microalgae growth. In addition, some nutrients are released through the progressive degradation of more complex compounds. This work demonstrates the effective application of these technologies and methods for municipal wastewater treatment, with a focus on the new rotating membrane (R-HFM), which has a positive impact on system performance. Overall, this represents a promising investment in the future of water treatment.[M. G. Može Guerréro]20252025-09-03 19:28:30Diplomsko delo/naloga95074UDK: 628.35:66.081.6(043.2)COBISS_ID: 249634051sl