Start-up with or without inoculum? Analysis of an SMBR pilot plant.

Durante, F.

Risultato della ricerca: Article

27 Citazioni (Scopus)

Abstract

This study analysed a submerged membrane bioreactor (SMBR) start-up with the purpose of determining the best conditions to carry it out. In order to do this, a hollow fibre membrane module was installed in a submerged configuration in a pilot aerobic reactor. The experiment was then divided in two phases, lasting 65 days each. During phase 1, the pilot plant was started-up without inoculum of activated sludge and no sludge, withdrawal was performed. Conversely, in phase 2, the MBR pilot plant was started-up with sludge inoculum and the sludge concentration was kept constant. In both phases, the volumetric loading rate applied to the pilot plant was kept constant. The authors analysed the difference in carbon removal performances, the evolution of floc sizes and the fouling rate in both phases. The results confirmed that MBRs can be quickly and easily started-up, but the initial start-up strategy can influence membrane fouling. More specifically, the carbon removal performances were similar in both phases, while the fouling rate increased faster during the start-up without inoculum, especially in terms of irreversible deposition of soluble compost on the membrane surface and into membrane pores.
Lingua originaleEnglish
pagine (da-a)79-90
Numero di pagine12
RivistaDesalination
Volume260 (2010)
Stato di pubblicazionePublished - 2010

Fingerprint

Bioreactors
Pilot plants
bioreactor
membrane
Membranes
fouling
Fouling
sludge
Carbon
Membrane fouling
carbon
compost
activated sludge
analysis
pilot plant
Fibers
Experiments
rate
experiment
removal

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Mechanical Engineering
  • Water Science and Technology
  • Materials Science(all)
  • Chemical Engineering(all)

Cita questo

Start-up with or without inoculum? Analysis of an SMBR pilot plant. / Durante, F.

In: Desalination, Vol. 260 (2010), 2010, pag. 79-90.

Risultato della ricerca: Article

Durante, F. 2010, 'Start-up with or without inoculum? Analysis of an SMBR pilot plant.', Desalination, vol. 260 (2010), pagg. 79-90.
Durante, F. / Start-up with or without inoculum? Analysis of an SMBR pilot plant. In: Desalination. 2010 ; Vol. 260 (2010). pagg. 79-90.
@article{e00417d0dc394416b36020d4ce9fba7b,
title = "Start-up with or without inoculum? Analysis of an SMBR pilot plant.",
abstract = "This study analysed a submerged membrane bioreactor (SMBR) start-up with the purpose of determining the best conditions to carry it out. In order to do this, a hollow fibre membrane module was installed in a submerged configuration in a pilot aerobic reactor. The experiment was then divided in two phases, lasting 65 days each. During phase 1, the pilot plant was started-up without inoculum of activated sludge and no sludge, withdrawal was performed. Conversely, in phase 2, the MBR pilot plant was started-up with sludge inoculum and the sludge concentration was kept constant. In both phases, the volumetric loading rate applied to the pilot plant was kept constant. The authors analysed the difference in carbon removal performances, the evolution of floc sizes and the fouling rate in both phases. The results confirmed that MBRs can be quickly and easily started-up, but the initial start-up strategy can influence membrane fouling. More specifically, the carbon removal performances were similar in both phases, while the fouling rate increased faster during the start-up without inoculum, especially in terms of irreversible deposition of soluble compost on the membrane surface and into membrane pores.",
keywords = "Complete sludge retention; floc size; fouling resistances; inoculum; sludge production; start-up.",
author = "{Durante, F.} and Gaspare Viviani and {Di Bella}, Gaetano and Michele Torregrossa",
year = "2010",
language = "English",
volume = "260 (2010)",
pages = "79--90",
journal = "Desalination",
issn = "0011-9164",
publisher = "Elsevier",

}

TY - JOUR

T1 - Start-up with or without inoculum? Analysis of an SMBR pilot plant.

AU - Durante, F.

AU - Viviani, Gaspare

AU - Di Bella, Gaetano

AU - Torregrossa, Michele

PY - 2010

Y1 - 2010

N2 - This study analysed a submerged membrane bioreactor (SMBR) start-up with the purpose of determining the best conditions to carry it out. In order to do this, a hollow fibre membrane module was installed in a submerged configuration in a pilot aerobic reactor. The experiment was then divided in two phases, lasting 65 days each. During phase 1, the pilot plant was started-up without inoculum of activated sludge and no sludge, withdrawal was performed. Conversely, in phase 2, the MBR pilot plant was started-up with sludge inoculum and the sludge concentration was kept constant. In both phases, the volumetric loading rate applied to the pilot plant was kept constant. The authors analysed the difference in carbon removal performances, the evolution of floc sizes and the fouling rate in both phases. The results confirmed that MBRs can be quickly and easily started-up, but the initial start-up strategy can influence membrane fouling. More specifically, the carbon removal performances were similar in both phases, while the fouling rate increased faster during the start-up without inoculum, especially in terms of irreversible deposition of soluble compost on the membrane surface and into membrane pores.

AB - This study analysed a submerged membrane bioreactor (SMBR) start-up with the purpose of determining the best conditions to carry it out. In order to do this, a hollow fibre membrane module was installed in a submerged configuration in a pilot aerobic reactor. The experiment was then divided in two phases, lasting 65 days each. During phase 1, the pilot plant was started-up without inoculum of activated sludge and no sludge, withdrawal was performed. Conversely, in phase 2, the MBR pilot plant was started-up with sludge inoculum and the sludge concentration was kept constant. In both phases, the volumetric loading rate applied to the pilot plant was kept constant. The authors analysed the difference in carbon removal performances, the evolution of floc sizes and the fouling rate in both phases. The results confirmed that MBRs can be quickly and easily started-up, but the initial start-up strategy can influence membrane fouling. More specifically, the carbon removal performances were similar in both phases, while the fouling rate increased faster during the start-up without inoculum, especially in terms of irreversible deposition of soluble compost on the membrane surface and into membrane pores.

KW - Complete sludge retention; floc size; fouling resistances; inoculum; sludge production; start-up.

UR - http://hdl.handle.net/10447/64458

M3 - Article

VL - 260 (2010)

SP - 79

EP - 90

JO - Desalination

JF - Desalination

SN - 0011-9164

ER -