Microfiltration of activated sludge using submerged membrane with air bubbling (application to wastewater treatment)

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

doi:10.1016/s0011-9164(98)00156-8

Cited by 164 publications

(62 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Preliminary experimental results indicate that if intermittent aeration is applied, fouling will take significantly longer to develop, which is consistent with results reported by other researchers [11][12][13]. Following the cleaning protocol as outlined above, no discernible variations in membrane permeability and turbidity retention were observed.…”

Section: 1supporting

confidence: 89%

Fouling in greywater recycling by direct ultrafiltration

2006

View full text Add to dashboard Cite

Greywater is no doubt a valuable resource that can be used to alleviate water shortage and increase water conservation in individual households. It is particularly important for arid and semi-arid regions like Australia. Treated greywater can also be used for many activities within the household such as toilet flushing, garden watering, car washing, or pavement cleansing. This study examines the fouling behaviour of submerged ultrafiltration membranes in greywater recycling under concentration variation of common greywater constituents. The results indicate that the use of ultrafiltration directly for greywater recycling in individual households is promising. As expected, increase in particulate matter concentration results in a thicker cake layer. However, hydraulic resistance of such cake layers depends on the presence of other constituents namely calcium and organic matter, which play a major role in membrane fouling. Fouling increases linearly with organic matter concentration, while the presence of a small amount of calcium may enhance fouling significantly.

show abstract

Section: 1supporting

confidence: 89%

Fouling in greywater recycling by direct ultrafiltration

2006

View full text Add to dashboard Cite

show abstract

“…For determining critical flux, the power of the suction pump was increased stepwise in order to increase water flux with corresponding transmembrane pressure (TMP). This method is in line with Bouhabila [28] where it is reported by plotting flux against TMP, it is possible to observe the transition between constant and non-constant permeability at the onset of fouling. The experiment was carried out with Com1 and PBM modules with activated sludge fed with MTDW.…”

Section: Effect Of Critical Flux (Cf) Regarding Membrane Performancessupporting

confidence: 69%

Novel low-fouling membrane bioreactor (MBR) for industrial wastewater treatment

Deowan

Galiano

Hoinkis

et al. 2016

Journal of Membrane Science

View full text Add to dashboard Cite

a b s t r a c tA novel antifouling coating of ultrafiltration (UF) commercial membranes, based on a polymerisable bicontinuous microemulsion (PBM) technique, was developed and tested for the first time in a membrane bioreactor (MBR) using an artificial model textile dye wastewater and compared with a commercial uncoated UF membrane. The results showed that the commercial MBR module faced severe fouling problems whereas the novel coated PBM MBR module reduced the fouling significantly. The analysis of fouling rate using a resistance model confirms that PBM coated membrane has a higher antifouling effect. The antimicrobial properties of the PBM membrane contributed by polymerisable cationic surfactant acryloyloxyundecyltriethylammonium bromide (AUTEAB) guaranteed an anti-biofouling effect preventing the growth of microorganisms on the membrane surface. In addition, the PBM MBR module showed 10 71% higher blue dye removal efficiency and a similar rate of COD removal efficiency of about 957 1% compared to commercial module. However, water permeability was slightly lower due to extra resistance of the PBM coating. Root mean squared (RMS) roughness measurement and analysis of AFM images confirmed that the stable novel membrane coating still existed and showed antimicrobial effect even after 105 days of operation. The results obtained demonstrated the potential of the low fouling PBM membrane.

show abstract

“…It has been reported in many studies that the filtration performance can be improved by controlling the bubbling rate [15,16,209,210]. On the one hand, the critical flux improves in an approximately linear fashion with respect to gas flow in submerged HF systems [100][101][102][103]204].…”

Section: Effect Of Gas Flowratementioning

confidence: 99%

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

et al. 2017

View full text Add to dashboard Cite

Abstract:The submerged membrane filtration concept is well-established for low-pressure microfiltration (MF) and ultrafiltration (UF) applications in the water industry, and has become a mainstream technology for surface-water treatment, pretreatment prior to reverse osmosis (RO), and membrane bioreactors (MBRs). Compared to submerged flat sheet (FS) membranes, submerged hollow fiber (HF) membranes are more common due to their advantages of higher packing density, the ability to induce movement by mechanisms such as bubbling, and the feasibility of backwashing. In view of the importance of submerged HF processes, this review aims to provide a comprehensive landscape of the current state-of-the-art systems, to serve as a guide for further improvements in submerged HF membranes and their applications. The topics covered include recent developments in submerged hollow fiber membrane systems, the challenges and developments in fouling-control methods, and treatment protocols for membrane permeability recovery. The highlighted research opportunities include optimizing the various means to manipulate the hydrodynamics for fouling mitigation, developing online monitoring devices, and extending the submerged HF concept beyond filtration.

show abstract

Microfiltration of activated sludge using submerged membrane with air bubbling (application to wastewater treatment)

Cited by 164 publications

References 9 publications

Fouling in greywater recycling by direct ultrafiltration

Fouling in greywater recycling by direct ultrafiltration

Novel low-fouling membrane bioreactor (MBR) for industrial wastewater treatment

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

Contact Info

Product

Resources

About