4.5 Article

New Insights into the Fouling of a Membrane during the Ultrafiltration of Complex Organic-Inorganic Feed Water

Related references

Note: Only part of the references are listed.
Article Environmental Sciences

Oxidized carbide-derived carbon as a novel filler for improved antifouling characteristics and permeate flux of hybrid polyethersulfone ultrafiltration membranes

Ismail W. Almanassra et al.

Summary: In this study, carbide-derived carbon (CDC) oxidized by acid treatment was used as a filler to fabricate a novel polyethersulfone (PES) composite ultrafiltration (UF) membrane. The oxidation of CDC resulted in increased oxygen content and improved hydrophilicity of the modified PES membranes. The addition of oxidized CDC significantly improved membrane porosity, pore size, water flux, antifouling characteristics, and adsorption capacity, as well as the stability and reusability of the membranes.

CHEMOSPHERE (2023)

Article Engineering, Chemical

A novel loosely structured nanofiltration membrane bioreactor for wastewater treatment: Process performance and membrane fouling

Lei Cao et al.

Summary: A novel nanofiltration membrane bioreactor (NF-MBR) was constructed by integrating a loosely structured nanofiltration hollow fiber membrane into an aerobic activated sludge system. The loose NF membrane showed high permeability and achieved higher removal efficiency of CODCr and DOC compared to the conventional ultrafiltration membrane bioreactor (UF-MBR). The fouling mechanism analysis revealed that reversible cake fouling was dominant and the small pore size of NF membrane mitigated irreversible pore blockage. The energy consumption of NF-MBR was comparable to UF-MBR. This study demonstrates the potential of loose NF membrane bioreactor as an advanced process for wastewater treatment.

JOURNAL OF MEMBRANE SCIENCE (2022)

Article Biotechnology & Applied Microbiology

Fabrication of sulfonated polyethersulfone ultrafiltration membranes with an excellent antifouling performance by impregnating with polysulfopropyl acrylate coated ZnO nanoparticles

Eid H. Alosaimi et al.

Summary: By incorporating ZnO nanoparticles modified with polysulfopropyl acrylate into the membrane, the composite membrane demonstrates significantly improved water flux, maintained high rejection rate towards natural organic matter, enhanced long-term fouling resistance, and excellent recyclability.

ENVIRONMENTAL TECHNOLOGY & INNOVATION (2022)

Article Chemistry, Analytical

Review of New Approaches for Fouling Mitigation in Membrane Separation Processes in Water Treatment Applications

Mervette El Batouti et al.

Summary: This review investigates antifouling agents used in various membrane separation processes and clarifies the fouling mechanism. The article discusses the composition and impact of fouling on membranes, and reports on methods for cleaning and repairing membranes. The study found that biologically induced biofilm dispersion effectively controls fouling, and the dynamic changes in membrane foulants during long-term operation are critical for the development of fouling control methods.

SEPARATIONS (2022)

Article Biochemistry & Molecular Biology

A Comparative Analysis of the Effect of Carbonaceous Nanoparticles on the Physicochemical Properties of Hybrid Polyethersulfone Ultrafiltration Membranes

Lubna Jaber et al.

Summary: This study compared the physicochemical properties and performance of PES UF membranes incorporated with different concentrations of MWCNTs and GO nanoparticles. PES membranes with 1 wt.% GO loading showed the highest porosity and water flux, and exhibited the best removal of natural organic matter.

MEMBRANES (2022)

Article Biochemistry & Molecular Biology

Impacts of Calcium Addition on Humic Acid Fouling and the Related Mechanism in Ultrafiltration Process for Water Treatment

Hui Zou et al.

Summary: This study investigated the influence of Ca2+ on HA fouling and demonstrated the potential of Ca2+ addition in mitigating fouling in the coagulation-ultrafiltration process. It was found that increasing Ca2+ concentration led to an increase in filtration flux and a reduction in hydraulic filtration resistance. The effects of Ca2+ addition varied for different resistance components, with a decrease in internal blocking and concentration polarization resistance, but an increase in membrane surface deposit resistance. The main reason for the decreased filtration resistance was the enlarged particle size caused by the Ca2+ bridging effect.

MEMBRANES (2022)

Article Biochemistry & Molecular Biology

Removal of Humic Acid Using 3-Methacryloxypropyl Trimethoxysilane Functionalized MWCNT Loaded TiO2/PES Hybrid Membrane

Noor Fazliani Shoparwe et al.

Summary: The highly efficient mixed matrix membrane developed in this study by incorporating fMWCNT-TiO2 particles into a PES polymer solution showed significantly improved surface hydrophilicity and HA removal efficiency, indicating its great potential for enhancing ultrafiltration membranes.

MEMBRANES (2021)

Article Engineering, Environmental

Interaction between humic acid and silica in reverse osmosis membrane fouling process: A spectroscopic and molecular dynamics insight

Danyang Li et al.

Summary: The study identified a critical silica concentration where synergistic fouling with humic acid caused severe fouling in the reverse osmosis membrane process. Below the critical point, no severe fouling was observed, while above the critical point, concentrated silica acted as the prior foulant causing severe synergistic fouling with humic acid.

WATER RESEARCH (2021)

Article Engineering, Environmental

Modeling and fouling control in a hybrid membrane process using CuO-catalytic membrane coupled to ozone

Leticya Lais Coelho et al.

Summary: Membrane filtration methods are prone to fouling, but hybrid techniques combining ozone and membrane filtration show promise in reducing membrane fouling. Detailed knowledge of fouling processes is necessary for incorporating these technologies at large-scale water treatment plants. Research found that CuO-membranes can mitigate membrane fouling and increase filtration efficiency in treating surface water.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2021)

Article Engineering, Chemical

Ultrafiltration with intermittent relaxation using colloidal silica and humic acid as model foulants

A. H. Taheri et al.

SEPARATION AND PURIFICATION TECHNOLOGY (2019)

Article Engineering, Chemical

Fabrication of graphene oxide incorporated polyethersulfone hybrid ultrafiltration membranes for humic acid removal

Mohammad Saad Algamdi et al.

SEPARATION AND PURIFICATION TECHNOLOGY (2019)

Article Engineering, Environmental

A new approach for modeling flux variation in membrane filtration and experimental verification

Mohsen Taghavijeloudar et al.

WATER RESEARCH (2019)

Article Engineering, Environmental

Synergistic effect of combined colloidal and organic fouling in membrane distillation: Measurements and mechanisms

Wenli Qin et al.

ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY (2017)

Article Engineering, Chemical

The fouling potential of colloidal silica and humic acid and their mixtures

Amir Hooshang Taheri et al.

JOURNAL OF MEMBRANE SCIENCE (2013)

Article Engineering, Chemical

Monitoring of colloidal fouling and its associated metastability using Ultrasonic Time Domain Reflectometry

S. T. V. Sim et al.

JOURNAL OF MEMBRANE SCIENCE (2012)

Article Engineering, Environmental

Effects of Humic Substances on Precipitation and Aggregation of Zinc Sulfide Nanoparticles

Amrika Deonarine et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2011)

Review Engineering, Environmental

Molecular structure in soil humic substances: The new view

R Sutton et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2005)

Article Engineering, Chemical

Analysis of humic acid fouling during microfiltration using a pore blockage-cake filtration model

W Yuan et al.

JOURNAL OF MEMBRANE SCIENCE (2002)

Article Engineering, Environmental

Humic acid fouling during ultrafiltration

W Yuan et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2000)