Fouling characterisation in membrane bioreactors

Bouhabila, El Hani; Aïm, R. Ben; Buisson, H.

doi:10.1016/s1383-5866(00)00156-8

Cited by 366 publications

(155 citation statements)

References 16 publications

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“…In addition, it can also be due to internal fouling as a result of membrane pore clogging by fine colloids [4], and the adsorption of dissolved organics (mainly SMP) inside the pores [5]. Various approaches have been adopted to prevent fouling such as increasing fluid velocity [6], increasing fluid pumping or gas sparging rate, relaxation, backwashing [7], modifying the membrane surface [8], sub critical flux operation [9], PAC in flux improvement, and to optimise its concentration in order to generate the maximum possible flux in a SAMBR. If flux is improved by PAC addition, it would also be interesting to observe the maximum organic loading rate capacity of the SAMBR in terms of lowest possible HRT, and system behaviour under high sludge and organic loading rate.…”

Section: Introductionmentioning

confidence: 99%

Flux and performance improvement in a submerged anaerobic membrane bioreactor (SAMBR) using powdered activated carbon (PAC)

Akram

Stuckey

2008

Process Biochemistry

148

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Section: Introductionmentioning

confidence: 99%

Flux and performance improvement in a submerged anaerobic membrane bioreactor (SAMBR) using powdered activated carbon (PAC)

Akram

Stuckey

2008

Process Biochemistry

148

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“…Bouhabila et al (2001) and Wisniewski and Grasmick (1996) reported fractions of membrane fouling due to suspended solids in the MBR of 23 and 24%, respectively.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of bio-foulants in the membrane bioreactor

et al. 2006

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The pilot submerged MBR (PSMBR) was operated with sewage to investigate the characteristics of soluble membrane foulants. Molecular weight distributions of soluble materials were analyzed and molecular weight fractionations were conducted as protein and carbohydrate compositions. Soluble materials of MW above 40 kDa were rejected by membrane, even if 0.4 μm pore size of microfiltration was used. Fourier transform infrared (FTIR) spectra and scanning electron microscope (SEM) were applied to monitor fouled membrane surface. FTIR analysis showed that protein and carbohydrate were dominant on the membrane surface. The cleaning efficiency tests showed that the combination of chemical and physical cleaning strategy was the most efficiency methods in this study.

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“…Membrane fouling is a severe problem and affects operating cost due to the frequent membrane cleaning and the increased aeration demands [7,8]. The degree of fouling in submerged membrane systems is a complex function of feed characteristics, membrane properties but more importantly of biomass characteristics and operating conditions [9,10]. To address the problem of membrane fouling, several measures are undertaken, including, wastewater pretreatment, hydraulic and chemical cleaning of the membranes, membrane modification and operation under conservative fluxes [11].…”

Section: Introductionmentioning

confidence: 99%

Influence of the Backwash Cleaning Water Temperature on the Membrane Performance in a Pilot SMBR Unit

Lintzos

Chatzikonstantinou

Tzamtzis

et al. 2018

Water

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Abstract:In this work, different backwash (BW) schemes were applied on identical hollow fiber (HF) membranes in a membrane bioreactor (MBR) treating municipal wastewater. The effect of BW duration (1 min, 3 min and 8 min) and water temperature (8 • C, 18 • C, 28 • C and 38 • C) on membrane fouling were investigated. Specifically, the transmembrane pressure (TMP) drop and the membrane permeability increase caused by the BW was investigated. Furthermore, the time required for the membrane to return to the state just before each BW experiment, was also examined. It was found that membranes presented better operating performance, as the BW temperature and the backwash duration were increased. Specifically, for 1 min backwash duration at the BW temperatures of 8 • C, 18 • C, 28 • C and 38 • C, TMP decreased by 7.1%, 8.7%, 11.2% and 14.2% respectively. For 8 min BW duration at 8 • C, 18 • C, 28 • C and 38 • C, TMP values decreased by 12%, 17.5%, 23.7% and 30.2% respectively. Increased BW water temperature and duration also improved the membrane permeability. Using higher BW water temperatures, more hours were required to return the membranes to the condition just before cleaning. The selected BW water temperatures did not adversely affect the permeate quality.

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Fouling characterisation in membrane bioreactors

Cited by 366 publications

References 16 publications

Flux and performance improvement in a submerged anaerobic membrane bioreactor (SAMBR) using powdered activated carbon (PAC)

Flux and performance improvement in a submerged anaerobic membrane bioreactor (SAMBR) using powdered activated carbon (PAC)

Characteristics of bio-foulants in the membrane bioreactor

Influence of the Backwash Cleaning Water Temperature on the Membrane Performance in a Pilot SMBR Unit

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