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Treatment and re-use of raw blackwater by Chlorella vulgaris-based system [Elektronski vir]Segovia Bifarini, Marco Antonio ...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.Source: Water [Elektronski vir]. - ISSN 2073-4441 (Letn. 12, št. 10, 2020, str. 1-17)Type of material - e-articlePublish date - 2020Language - englishCOBISS.SI-ID - 30855683
Author
Segovia Bifarini, Marco Antonio |
Žitnik, Miha |
Griessler Bulc, Tjaša |
Krivograd-Klemenčič, Aleksandra
Topics
fekalije |
urin |
čiščenje odpadnih voda |
hranila |
biomasa |
kmetijstvo |
feces |
urine |
wastewater treatment |
nutrients |
biomass |
agriculture
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Segovia Bifarini, Marco Antonio | ![]() |
Žitnik, Miha | 36714 |
Griessler Bulc, Tjaša | 11790 |
Krivograd-Klemenčič, Aleksandra | 26067 |
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