Nitrogen removal from ammonium-rich pharmaceutical wastewater. A comparison between sequencing batch reactor (SBR) and sequencing batch biofilm reactor (SBBR)

• Autorzy: Hajsardar M. , Borghei S. M. , Hassani A. H. , Takdastan A.

Identyfikatory

DOI

10.5277/epe180307

• Języki publikacji: EN

Abstrakty

EN

Biological nitrogen removal from industrial wastewater (pharmaceutical synthetic wastewater) was studied. Sequencing batch reactor (SBR) and sequencing batch biofilm reactor (SBBR) were utilized to treat ammonium-rich wastewater. No external carbon source was added to the reactors. At nitrogen loading rate (NLR) of 2.5 kg N/(m³·day), the efficiency of ammonium removal from synthetic wastewater in SBR was 86.9%. SBBR ammonium removal efficiency under fixed dissolved oxygen (DO) concentration of 0.3 mg O₂/dm³ was 98.4%. Specific nitrification rate (SNR) and specific denitrification rate (SDNR) in SBR were 9.24 mg NH₄⁺-N/(g MLVSS·h) and 18.56 mg NO₃^– -N/(g MLVSS·h), respectively. Nitrite accumulation rate (NAR) showed high correlation with DO decrement (R² = 0.983), NAR and simultaneous nitrification and denitrification (SND) had high correlation, too (R^² = 0.976). SND efficiency in SBBR reached 94.1% while ammonium oxidizing bacteria (AOB) were dominant and NAR in SBBR process at the DO level of 0.3 mg O₂/dm³ was 90.3%.

Słowa kluczowe

EN

activated sludge process; batch reactors; SBR; pharmaceutical wastewater; nitration

PL

proces osadu czynnego; reaktor wsadowy; SBR; ścieki farmaceutyczne; nitracja

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2018
• Tom: Vol. 44, nr 3
• Strony: 95--115
• Opis fizyczny: Bibliogr. 27 poz., tab., rys.

Twórcy

autor

Hajsardar M.

• Department of Environmental Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

autor

Borghei S. M.

• Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran

autor

Hassani A. H.

• Department of Environmental Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

autor

Takdastan A.

• Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran

Bibliografia

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