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Analysis of the Activated Sludge Process in an MBR under Starvation Conditions


Vuković, Marija; Briški, Felicita; Matošić, Marin; Mijatović, Ivan
Analysis of the Activated Sludge Process in an MBR under Starvation Conditions // Chemical Engineering & Technology, 29 (2006), 3; 357-363 (međunarodna recenzija, članak, znanstveni)


Naslov
Analysis of the Activated Sludge Process in an MBR under Starvation Conditions

Autori
Vuković, Marija ; Briški, Felicita ; Matošić, Marin ; Mijatović, Ivan

Izvornik
Chemical Engineering & Technology (0930-7516) 29 (2006), 3; 357-363

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Activated sludge; membrane bioreactor; starvation

Sažetak
An aerobic membrane bioreactor (MBR) at complete biomass retention was studied over a period of time under starvation conditions. Kinetic parameters were determined in a no-feed batch test. The decay rate of activated sludge, kd = 0.05 d-1, was determined by tracking the decrease of MLSS. The ratio of MLVSS/MLSS was in the range 0.76– 0.85. The pH values were between 7.02 and 8.23. As a function of different initial concentrations of MLSS, specific nitrification rates, qN, decreased from 4.23 to 0.02 mg-N/(g MLVSS d) and specific biodegradation rates, qb, increased from 0.23 to 1.90 mg COD/(g MLVSS d). From experimental data the kinetic constants for respiration, which followed Monod kinetics, were determined as qO2max = 9.8 mg O2/(g MLVSS h), Kx = 2.9 g/dm3. Additionally, a linear correlation between MLSS and mean floc size was found to exist during the biodegradation process.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo



POVEZANOST RADA


Ustanove
Fakultet kemijskog inženjerstva i tehnologije, Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Uključenost u ostale bibliografske baze podataka:


  • Chemical Abstracts