Description of membrane fouling characteristics during ultrafiltration of organic foulants contained in sweetwater solutions

Amin, Indok Nurul Hasyimah Mohd; Mohammad, Abdul Wahab; Hilal, Nidal

doi:10.1016/j.jece.2014.05.015

Cited by 8 publications

(3 citation statements)

References 37 publications

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“…Membrane fouling is a significant challenge in water treatment processes, resulting from the deposition and accumulation of microorganisms, colloids, solutes, and cell debris inside or on the membrane surface [45][46][47][48][49]. Fouling can increase the TMP and decrease the permeate flux, leading to reduced efficiency and increased operational costs.…”

Section: Stability Of Membrane Operationmentioning

confidence: 99%

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Municipal Sewage Treatment Technology: A2/O-VMBR Integrated Technology for Municipal Treatment and Improved Pollutant Removal

Han

Lyu

et al. 2023

Water

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To modernize wastewater treatment plants, a pilot-scale anaerobic/anoxic/oxic-vibrating membrane bioreactor (A2/O-VMBR) was developed and successfully operated. Despite a low C/N ratio, the A2/O-VMBR achieved removal rates of 61.10%, 93.77%, 72.86%, and 54.75% for COD, TN, TP, and NH3-N, respectively. The maximum and extremity transmembrane pressures were 45 kPa, and 80 kPa, respectively, with no sludge bulking observed. The VMBR saved over 96–98% of energy compared to traditional MBR plants, making it a better option for municipal wastewater treatment. High-throughput sequencing analysis revealed identical bacterial population structures in samples obtained from the treatment units, with genera having nitrifying, denitrifying, hydrolyzing, and glycogen-accumulating activities, which allowed for nitrogen removal. The key functional microorganisms responsible for nitrification–denitrification were species belonging to the genera FCPU426, Fusobacteria, Planctomycetes, Verrucomicrobia, and Epsilonbacteraeota. The integrated experimental system produced favorable results in improving wastewater quality, highlighting the usability of the A2/O-VMBR technology. Therefore, this technique holds potential for further investigation into the context of wastewater treatment and recovery.

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Section: Stability Of Membrane Operationmentioning

confidence: 99%

“…High-throughput sequencing using the Illumina MiSeq platform was used to analyze microbial community diversity and phylogenetic structure of the WWTPs [48,49]. The number of ASVs/OTUs (species level) was determined after eliminating low-quality sequences and chimeras (Figure 13).…”

Section: Bacterial Community Diversitymentioning

confidence: 99%

Municipal Sewage Treatment Technology: A2/O-VMBR Integrated Technology for Municipal Treatment and Improved Pollutant Removal

Han

Lyu

et al. 2023

Water

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“…Image analysis of several microscopic images is frequently used because it gives a good view of the membrane surface that can be used to study surface membrane modifications, [27][28][29]. In this case such image analysis was performed in order to obtain independent information on the porosimetric characteristics of the membrane.…”

Section: Introductionmentioning

confidence: 99%

Porosimetric characterization of polysulfone ultrafiltration membranes by image analysis and liquid–liquid displacement technique

et al. 2015

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Structural and surface properties of two commercial polysulfone ultrafiltration membranes have been evaluated by different techniques. Pore size distributions have been determined by Liquid-Liquid Displacement Porosimetry (LLDP) as well as by image analysis performed onto Field Emission Scanning Electron Microscopy (FESEM) images of the membrane surfaces. Fourier Transform Infrared Spectroscopy (FTIR) has been used to investigate membrane composition, and in particular, to obtain proper information on the presence of additive within the membrane structure.Porosimetric results obtained by the two independent techniques compared reasonably well and the Molecular Weight Cut Off (MWCO) of the two membranes estimated from LLDP pore size distribution were found to be in good agreement with the nominal values given by manufacturers.

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Novel anti-microbial membrane for desalination pretreatment: A silver nanoparticle-doped carbon nanotube membrane

et al. 2015

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Description of membrane fouling characteristics during ultrafiltration of organic foulants contained in sweetwater solutions

Cited by 8 publications

References 37 publications

Municipal Sewage Treatment Technology: A2/O-VMBR Integrated Technology for Municipal Treatment and Improved Pollutant Removal

Municipal Sewage Treatment Technology: A2/O-VMBR Integrated Technology for Municipal Treatment and Improved Pollutant Removal

Porosimetric characterization of polysulfone ultrafiltration membranes by image analysis and liquid–liquid displacement technique

Novel anti-microbial membrane for desalination pretreatment: A silver nanoparticle-doped carbon nanotube membrane

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