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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-1d9b76e4-8aa5-4a88-a7de-fe81266a0d7b

Czasopismo

Polish Journal of Chemical Technology

Tytuł artykułu

Simultaneous ammonium and nitrate removal by a modified intermittently aerated sequencing batch reactor (SBR) with multiple filling events

Autorzy Hajsardar, M.  Borghei, S. M.  Hassani, A. H.  Takdastan, A. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
Abstrakty
EN Optimized methods for simultaneous removal of nitrate, nitrite and ammonium are important features of nutrient removal. Nitrogen removal efficiency in an intermittently aerated sequencing batch reactor (IA-SBR) with multiple filling events was studied. No external carbon source was added and three filling events were considered. Oxidationreduction potential (ORP) and pH curve at solids retention time (SRT) of 20 d were analyzed. Effects of three organic loading rates (OLR), 0.67, 1.0 and 1.5 kgCOD/m3d, and three nitrogen loading rates (NLR), 0.054, 0.1 and 0.15 kgN/m3d, on nitrogen removal were studied. Nitrate Apex in pH curve and Nitrate Knee in ORP profile indicated that the end of denitrification would be achieved sooner. The kinetic coefficients of endogenous decay (kd) and yield (Y) were identified to evaluate heterotrophic specific denitrification rate (SDNRb). In period 2 at NLR of 0.054 kgN/m3d and considering 2 anoxic and 3 aerobic phases, nitrogen removal efficiency was 91.43%.
Słowa kluczowe
EN denitrification   intermittent aeration   filling event   oxidation-reduction potential   sequencing batch reactor  
Wydawca West Pomeranian University of Technology. Publishing House
Czasopismo Polish Journal of Chemical Technology
Rocznik 2016
Tom Vol. 18, nr 3
Strony 72--80
Opis fizyczny Bibliogr. 28 poz., rys., tab.
Twórcy
autor Hajsardar, M.
  • Islamic Azad University, Department of Environmental Engineering, Science and Research Branch, Tehran, Iran, Postal code: 1477893855
autor Borghei, S. M.
  • Sharif University of Technology, Department of Chemical and Petroleum Engineering, Tehran, Iran, Postal code: 11365/8639, mborghei@sharif.edu
autor Hassani, A. H.
  • Islamic Azad University, Department of Environmental Engineering, Science and Research Branch, Tehran, Iran, Postal code: 1477893855
autor Takdastan, A.
  • Ahvaz Jundishapur University of Medical Sciences, Environmental Technologies Research Center, Ahvaz, Iran, Postal code: 6135715794
Bibliografia
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Uwagi
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-1d9b76e4-8aa5-4a88-a7de-fe81266a0d7b
Identyfikatory
DOI 10.1515/pjct-2016-0051