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Biological nutrient removal: the effect of organic load (CROSBI ID 666171)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa

Širac, Tea ; Mikulin, Ana ; Špehar, Ana ; Landeka Dragičević, Tibela Biological nutrient removal: the effect of organic load // Environmental & Green Chemistry 2017 Posters. 2017. str. 111-111 doi: 10.21767/2471-9889-C1-003

Podaci o odgovornosti

Širac, Tea ; Mikulin, Ana ; Špehar, Ana ; Landeka Dragičević, Tibela

engleski

Biological nutrient removal: the effect of organic load

Biological nutrient removal (BNR) of nitrogen and phosphorus has been widely used in wastewater treatment practice to control eutrophication in receiving water bodies. The most widely used nitrogen removal methods are biological nitrification (aerobic transformation of NH4-N to NO2-N and NO3-N), and denitrification methods (anoxic reduction of NO3-N to N2). Simultaneous nitrification-denitrification process (SND), in compare to conventional biological nitrogen removal process, can offer several advantages including reducing carbon source and alkalinity consumption, low energy consumption, high nutrients removal efficiencies, and simplifying the treatment system. P removal is achieved through enhanced biological phosphorus removal (EBPR) under alternating anaerobic–aerobic conditions. Biological nutrient removal (N and P) in batch anoxic experiments was investigated. The initial concentration of P and N were 10-18 mg PO43—P/L and 48±2 mg NH4+-N/L. Sodium acetate was used as carbon source, at C/N 1 to C/N 7. Results indicated that the increase of C/N ratio improved efficiency of N removal in a range from 14.3 % at C/N 1 to 89, 7 % at C/N 7. And also, the highest P removal of 61% was achieved at C/N 4. Nutrient removal was achieved by simultaneous nitrification and denitrification, and phosphorus removal.

N and P removal, anoxic conditions

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Podaci o prilogu

111-111.

2017.

objavljeno

10.21767/2471-9889-C1-003

Podaci o matičnoj publikaciji

Environmental & Green Chemistry 2017 Posters

Podaci o skupu

6th International Conference on Environmental Chemistry and Engineering

poster

24.07.2017-26.07.2017

Rim, Italija

Povezanost rada

Biotehnologija

Poveznice