EurekaMag
+ Translate
+ Most Popular
Cunninghamia lanceolata plantations in China
Mammalian lairs in paleo ecological studies and palynology
Studies on technological possibilities in utilization of anhydrous milk fat for production of recombined butter-like products
Should right-sided fibroelastomas be operated upon?
Large esophageal lipoma
Apoptosis in the mammalian thymus during normal histogenesis and under various in vitro and in vivo experimental conditions
Poissons characoides nouveaux ou non signales de l'Ilha do Bananal, Bresil
Desensitizing efficacy of Colgate Sensitive Maximum Strength and Fresh Mint Sensodyne dentifrices
Administration of fluid by subcutaneous infusion: revival of a forgotten method
Tundra mosquito control - an impossible dream?
Schizophrenia for primary care providers: how to contribute to the care of a vulnerable patient population
Geochemical pattern analysis; method of describing the Southeastern limestone regional aquifer system
Incidence of low birth weights in a hospital of Mexico City
Tabanidae
Graded management intensity of grassland systems for enhancing floristic diversity
Microbiology and biochemistry of cheese and fermented milk
The ember tetra: a new pygmy characid tetra from the Rio das Mortes, Brazil, Hyphessobrycon amandae sp. n. (Pisces, Characoidei)
Risk factors of contrast-induced nephropathy in patients after coronary artery intervention
Renovation of onsite domestic wastewater in a poorly drained soil
Observations of the propagation velocity and formation mechanism of burst fractures caused by gunshot
Systolic blood pressure in a population of infants in the first year of life: the Brompton study
Haematological studies in rats fed with metanil yellow
Studies on pasteurellosis. I. A new species of Pasteurella encountered in chronic fowl cholera
Dormancy breaking and germination of Acacia salicina Lindl. seeds
therapy of lupus nephritis. a two-year prospective study

Effects of Aeration Pore Diameter and Aeration Intensity on Hydrodynamic Characteristics in Submerged Membrane Bio-Reactors


Effects of Aeration Pore Diameter and Aeration Intensity on Hydrodynamic Characteristics in Submerged Membrane Bio-Reactors



Fresenius Environmental Bulletin 27(10): 6574-6582



ISSN/ISBN: 1018-4619

Submerged membrane bio-reactor (SMBR) is a well-developed waste-water treatment process that has been widely used by municipalities and industries. Nonetheless, concentration polarization and membrane fouling are the two important problems preventing their wide applications. In the present study, the most effective strategy to improve the membrane performance was found to generate the gas-liquid two-phase cross-flow through aeration. However, the optimum operating parameters such as the pore size and intensity of aeration were still unclear. Optimizing operating parameter is essential to reduce the operational costs and to improve filtration efficiency. This study investigated the hydrodynamic characteristics of hollow fiber membrane surface in SMBR under different conditions using the particle image velocity (PIV) technique and the effects of the different experimental parameters on the membrane performance.The results indicate that aeration pore size of 1.0 mm and 140L/h aeration intensity is considered the optimum operating parameters,because it can provide higher shear stress and highly dissolved oxygen. The subject laid a theoretical foundation for the optimization of flow field in submerged membrane bio-reactor so as to control the membrane fouling problem.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 070885972

Download citation: RISBibTeXText

Related references

Simultaneous nitrification, denitrification and phosphorus removal in aerobic granular sequencing batch reactors with high aeration intensity: Impact of aeration time. Bioresource Technology 263: 214-222, 2018

Biofiltri sommersi aerati. IV: Caratteristiche di aerazione - Biofiltres aérobies submergés. IV. Caractéristiques de l'aération - Submerged aerated biofilters. IV. Aeration characteristics. Ingegneria Ambientale Inquinamento e Depurazione 17(11-12): 627-636, 1988

Package plant of extended aeration membrane bioreactors: a study on aeration intensity and biofouling control. Water Science and Technology: a Journal of the International Association on Water Pollution Research 51(10): 335-342, 2005

The effect of aeration and non-aeration time on simultaneous organic, nitrogen and phosphorus removal using an intermittent aeration membrane bioreactor. Water Science and Technology: a Journal of the International Association on Water Pollution Research 46(9): 193-200, 2002

Effects of different layouts of fine-pore aeration tubes on sewage collection and aeration in rectangular water tanks. Aquacultural Engineering 89: 102060, 2020

Biomass characteristics and membrane aeration: toward a better understanding of membrane fouling in submerged membrane bioreactors (MBRs). Biotechnology and Bioengineering 90(3): 316-322, 2005

Influence of the water height in aeration regimes with the same membrane diffuser on technical characteristics of aeration system. Membranes in Drinking and Industrial Water Treatment-Mdiw Conference 51(22-24): 4271-4282, 2013

Correlating microbial community structure and composition with aeration intensity in submerged membrane bioreactors by 454 high-throughput pyrosequencing. Water Research 47(2): 859-869, 2013

Effects of operational parameters on aeration on/off time in an intermittent aeration membrane bioreactor. Wwrs 2005 : International Conference on Wastewater Reclamation and Reuse for Sustainability 202(1-3): 77-82, 2007

Aeration studies IV Aeration conditions in 3000-liter submerged fermentations with various microorganisms. Biotechnol Bioeng: 595-619, 1966

Effects of aeration on suction pressure in a submerged membrane bioreactor. Water Research 31(3): 489-494, 1997

Effects of aeration and inclination on flux performance of submerged membrane filtration. Conference on Aseanian Membrane Society 234(1-3): 74-80, 2008

Techniques de réhabilitation des plans d'eau eutrophisés : l'aération par déstratification et l'aération hypolimnique - Rehabilitation methods for eutrophicated lakes : Aeration-by-destratlfication and hypolimnetic aeration. Atelier Hydrotop 98 (1998) (12): 41-53, 1998

Effects of aeration parameters on effluent quality and membrane fouling in a submerged membrane bioreactor using Box-Behnken response surface methodology. Desalination 302: 33-42, 2012

Interrelated effects of aeration and mixed liquor fractions on membrane fouling for submerged membrane bioreactor processes in wastewater treatment. Environmental Science and Technology 41(7): 2523-2528, 2007