20.500.12556/RUL-125087 Treatment and re-use of raw blackwater by Chlorella vulgaris-based system In this study, we examined a Chlorella vulgaris-based system as a potential solution to change liquid waste, such as blackwater, into valuable products for agriculture while protecting waters from pollution without technical demanding pre-treatment. To evaluate the possibility of nutrient removal and biomass production from raw blackwater, four blackwater dilutions were tested at lab-scale: 50%, 30%, 20%, and 10%. The results showed that even the less diluted raw blackwater was a suitable growth medium for microalgae C. vulgaris. As expected, the optimum conditions were observed in 10% blackwater with the highest growth rate (0.265 d$^{−1}$) and a nutrient removal efficiency of 99.6% for ammonium and 33.7% for phosphate. However, the highest biomass productivity (5.581 mg chlorophyll-a L$^{−1}$ d$^{−1}$) and total biomass (332.82 mg dry weight L$^{−1}$) were achieved in 50% blackwater together with the highest chemical oxygen demand removal (81%) as a result of the highest nutrient content and thus prolonged growth phase. The results suggested that the dilution factor of 0.5 followed by microalgae cultivation with a hydraulic retention time of 14 days could offer the highest biomass production for the potential use in agriculture and, in parallel, a way to treat raw blackwater from source-separation sanitation systems. feces urine wastewater treatment nutrients biomass agriculture fekalije urin čiščenje odpadnih voda hranila biomasa kmetijstvo true false true Angleški jezik Slovenski jezik Članek v reviji 2021-03-04 14:09:36 2021-03-04 14:09:39 2022-09-05 03:49:27 0000-00-00 00:00:00 2020 0 0 17 str. iss. 10, art. 2660 Vol. 12 2020 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 628.3 2073-4441 10.3390/w12102660 30855683 RAZ_Segovia_Bifarini_Marco_Antonio_2020.pdf RAZ_Segovia_Bifarini_Marco_Antonio_2020.pdf 1 9DC9DECF63F1D6E88A8DFBA1BC40F66B bbd421ef0324148dac03ca813e17f8aab897ce46cc871d8136232d9185db6bdd 0d5cc4f6-7ab7-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=153154 https://www.mdpi.com/2073-4441/12/10/2660 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=140745 Zdravstvena fakulteta Fakulteta za gradbeništvo in geodezijo 0 0 0