Upflow packed bed Anammox reactor used in two-stage deammonification of sludge digester effluent

Celen-Erdem I., Kurt E. S., Bozcelik B., Calli B.

WATER SCIENCE AND TECHNOLOGY, cilt.78, sa.9, ss.1843-1851, 2018 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 78 Sayı: 9
  • Basım Tarihi: 2018
  • Doi Numarası: 10.2166/wst.2018.322
  • Dergi Adı: WATER SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
  • Sayfa Sayıları: ss.1843-1851
  • Anahtar Kelimeler: Anammox, digester effluent, nitrogen removal rate, partial nitritation, side stream, PARTIAL NITRIFICATION, NITROGEN REMOVAL, PARTIAL NITRITATION, WASTE-WATER, START-UP, BACTERIA, SCALE
  • Marmara Üniversitesi Adresli: Evet

Özet

The sludge digester effluent taken from a full scale municipal wastewater treatment plant (WWTP) in Istanbul, Turkey, was successfully deammonified using a laboratory scale two-stage partial nitritation (PN)/Anammox (A) process and a maximum( )nitrogen removal rate of 1.02 kg N/m(3)/d was achieved. In the PN reactor, 56.8 +/- 4% of the influent NH4-N was oxidized to NO2-N and the effluent nitrate concentration was kept below 1 mg/L with 0.5-0.7 mg/L of dissolved oxygen and pH of 7.12 +/- 12 at 24 +/- 4 degrees C. The effluent of the PN reactor was fed to an upflow packed bed Anammox reactor where high removal efficiency was achieved with NO2-N:NH4-N and NO3-N:NH4-N ratios of 1.32 +/- 0.19:1 and 0.22 +/- 0.10:1, respectively. The results show that NH4-N removal efficiency up to 98.7 +/- 2.4% and total nitrogen removal of 87.7 +/- 6.5% were achieved.