Membrane fouling control in ultrafiltration technology for drinking water production: A review

Gao, Wei; Liang, Heng; Ma, Jun; Han, Moonsik; Chen, Zhonglin; Han, Zheng-shuang

doi:10.1016/j.desal.2011.01.051

Cited by 790 publications

(364 citation statements)

References 68 publications

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“…8−10 Membrane biofouling, caused by adsorption, deposition, and growth of microorganisms on the membrane surface, has strong negative effects on the operational sustainability and the cost-efficiency of membrane process, 11,12 yet no simple cleaning method can be applied to remove biofilm efficiently and to recover the membrane properties successfully. 13,14 Silver nanoparticles (Ag NPs) are widely used as most popular disinfectants to mitigate membrane biofouling because of their excellent broad-spectrum antimicrobial properties and low toxicity toward mammalian cells. 15−18 Both in situ and ex situ methods have been developed to incorporating Ag NPs into the membrane surface.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Antibiofouling Properties of Thin Film Composite Forward Osmosis Membrane with Rechargeable Silver Nanoparticles Loading

Liu

2016

ACS Appl. Mater. Interfaces

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Microbial attachment and biofilm formation on filtration membrane can greatly compromise its flux and separation efficiency. Here, a simple and facile approach has been developed to in situ generate silver nanoparticles (Ag NPs) on the thin film composite forward osmosis (TFC FO) membrane for sustainable antibiofouling performances. Mussel-inspired dopamine chemistry was applied to grow polydopamine coating on both surfaces of FO membranes, followed by the generation of Ag NPs upon a simple dip coating in silver nitrate aqueous solution. Furthermore, the Ag NPs deposited membranes had a long-term silver release profile with rechargability for multiple times upon their depletion, and exhibited strong sustainable bactericidal efficacy against Gram-negative bacteria and Grampositive bacteria. The Ag NPs had a controllable effect on the membrane performances including the water flux and reverse salt flux in the FO test mode. Our practicable antibacterial strategy may apply to other types of filtration membranes with diverse material surfaces and may pave a new way to achieve the sustainable membrane antibiofouling performance on a large scale.

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Section: Introductionmentioning

confidence: 99%

Sustainable Antibiofouling Properties of Thin Film Composite Forward Osmosis Membrane with Rechargeable Silver Nanoparticles Loading

Liu

2016

ACS Appl. Mater. Interfaces

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“…The particles, microorganisms, and organic molecules, whose particle size is larger than pore size of membrane, can be entrapped in the membrane surface of ceramic membrane [9] . (2) Adsorption.…”

Section: Filtration Principle Of Ceramic Membranementioning

confidence: 99%

Development and application of ceramic membrane in oily wastewater treatment

Song¹,

Qiu²,

Qiu³

et al. 2017

Proceedings of the 2017 6th International Conference on Energy and Environmental Protection (ICEEP 2017)

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Membrane separation technology, as an important water quality safeguards, has been widely studied and applied in water and wastewater treatment，because of its advantages ( low cost, convenient operation, no phase change and no secondary pollution). Compared with organic membrane, the inorganic ceramic membrane with more stable material properties, which can be described as high temperature resistance, acid-alkali resistance and good chemical stability, has more superiority in the complex wastewater，that have the characteristics of strong acidity, alkaline and corrosive, such as oily wastewater. This article summarizes the classification and characteristics of the ceramic membrane, and analyzes its filtration mechanism. The utilization and development of ceramic membrane and its combination process in different types of oily wastewater treatment are discussed. The future development and existing problems to be solved of ceramic membranes is proposed.

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“…(GAO et al, 2011;MIERZWA et al, 2008). Besides deconstructing the cake layer formed, the backwashing operation is also important to re-open blocked pores.…”

Section: Alternatives To Minimize Foulingmentioning

confidence: 99%

“…Acidic solutions are recommended for the control of inorganic fouling, while alkaline solutions have efficient control of organic fouling. (GAO et al, 2011) Research by MIERZWA and colleagues (2012) considered the integrated application of methodologies to combat fouling aiming to improve the performance of a spiral wound ultrafiltration system. It has been found that adopting periodic stops of relaxation and discharge combined with chlorine addition increased production of permeate in approximately 50%.…”

Section: Alternatives To Minimize Foulingmentioning

confidence: 99%

“…When operating under low flow conditions, the fouling tendency becomes smaller, requiring in return greater membrane area and increased operational costs. (GAO et al, 2011) One operational condition that can help to minimize fouling effects is introducing a relaxation period during operation. During the relaxation period the shear stress is maintained, but the filtration strength on particles is stopped.…”

Section: Alternatives To Minimize Foulingmentioning

confidence: 99%

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Synthesis and characterization of polysulfone/nanoclay/polyethylene oxide composite ultrafiltration membranes.

Rodrigues¹

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Catalogação-na-publicaçãoRodrigues, Raphael Synthesis and characterization of polysulfone/nanoclay/polyethylene oxide composite ultrafiltration membranes / R. Rodrigues --versão corr. --São Paulo, 2016. 165 p. Palavras-chave: membranas de polisulfona, modificação de estrutura, nano-argila, PEO ABSTRACTMembrane structure modification is a common approach to enhance membrane properties and performance. For example, the addition of dopants to the membrane casting solution has been observed to increase hydrophilicity, alter surface and internal pore structure, increase thermal and mechanical resistance, and impart anti-fouling properties. In this study, it was evaluated how the addition of individual and simultaneous nanoclay and polyethylene oxide (PEO) dopants affected the structure and performance of polysulfone (PSU) ultrafiltration membranes. Membrane performance was evaluated in the cross-flow configuration. The pure water permeability of the neat PSU membrane was 15 L/m².h.bar and at the optimal dosage of the individually doped membranes was 1.5% weight nanoclay to PSU and 5% weight PEO to PSU resulting in permeability of 56 and 237 L/m².h.bar, respectively.Simultaneous doping using the optimal individual weight percentages had a lower effect resulting in a permeability of 192 L/m².h.bar, in contrast the simultaneous addition of 4.5% nanoclay and 5% PEO had a higher effect resulting in a permeability of 319 L/m².h.bar. The control membrane was compared to the referred membranes and with the 4.5% nanoclay membrane (best permeability only when combined with PEO). These membranes were further examined to determine dopant effects on pore microstructure, superficial charge, separation performance, and fouling susceptibility.In general, doping with nanoclay improved membrane thermal/mechanical resistance and permeability with minimal loss in rejection. Doping with PEO resulted in a greater permeability as compared to nanoclay; however, PEO doping decreased rejection, mechanical resistance, and increased irreversible fouling. Thus, both advantageous and disadvantageous effects should be considered when selecting a dopant to optimize membrane performance.

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Membrane fouling control in ultrafiltration technology for drinking water production: A review

Cited by 790 publications

References 68 publications

Sustainable Antibiofouling Properties of Thin Film Composite Forward Osmosis Membrane with Rechargeable Silver Nanoparticles Loading

Sustainable Antibiofouling Properties of Thin Film Composite Forward Osmosis Membrane with Rechargeable Silver Nanoparticles Loading

Development and application of ceramic membrane in oily wastewater treatment

Synthesis and characterization of polysulfone/nanoclay/polyethylene oxide composite ultrafiltration membranes.

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