A comparison of organic matters responsible for immersed ultrafiltration membranes fouling in drinking water treatment

Natural organic matter (NOM) plays a significant role in the fouling of ultrafiltration membranes in drinking water treatment processes. For a better understanding of the interaction between fractional components of NOM and polysulfone (PS) ultrafiltration membranes used for drinking water treatment, fouling and especially the physically irreversible fouling of natural organic matter were investigated. Resin fractionation, fluorescence excitation–emission matrix (EEM) spectroscopy, fourier transform infrared spectroscopy (FTIR), contact angle and a scanning electron microscope (SEM) were employed to identify the potential foulants. The results showed that humic acid and fulvic acid of small size were likely to permeate the membrane, while the hydrophobic fraction of humic and fulvic acid and aromatic proteins tended to be rejected and retained. Organic compounds such as proteins, humic substances, and polysaccharide-like materials, were all detected in the fouling layer. The physically irreversible fouling of the PS membrane seemed to be mainly attributed to the hydrophobic fraction of humic substances.

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Retentions of bisphenol A and norfloxacin by three different ultrafiltration membranes in regard to drinking water treatment

Chemical Engineering Journal ◽

10.1016/j.cej.2016.02.117 ◽

2016 ◽

Vol 294 ◽

pp. 410-416 ◽

Cited By ~ 25

Author(s):

Hao Wu ◽

Xiaojun Niu ◽

Jia Yang ◽

Caihong Wang ◽

Meiqing Lu

Keyword(s):

Drinking Water ◽

Water Treatment ◽

Bisphenol A ◽

Drinking Water Treatment ◽

Ultrafiltration Membranes

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Modification of poly(vinylidene fluoride) ultrafiltration membranes with poly(vinyl alcohol) for fouling control in drinking water treatment

Water Research ◽

10.1016/j.watres.2009.08.008 ◽

2009 ◽

Vol 43 (18) ◽

pp. 4559-4568 ◽

Cited By ~ 151

Author(s):

Jennifer R. Du ◽

Sigrid Peldszus ◽

Peter M. Huck ◽

Xianshe Feng

Keyword(s):

Drinking Water ◽

Water Treatment ◽

Vinyl Alcohol ◽

Vinylidene Fluoride ◽

Drinking Water Treatment ◽

Poly Vinyl Alcohol ◽

Ultrafiltration Membranes ◽

Fouling Control ◽

Poly Vinylidene Fluoride

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Direct drinking water treatment by spiral-wound ultrafiltration membranes

Desalination ◽

10.1016/j.desal.2007.11.014 ◽

2008 ◽

Vol 230 (1-3) ◽

pp. 41-50 ◽

Cited By ~ 17

Author(s):

J.C. Mierzwa ◽

I. Hespanhol ◽

M.C.C. da Silva ◽

L.D.B. Rodrigues ◽

C.F. Giorgi

Keyword(s):

Drinking Water ◽

Water Treatment ◽

Drinking Water Treatment ◽

Ultrafiltration Membranes ◽

Spiral Wound

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Affinity isolation of algal organic matters able to form complex with aluminium coagulant

Water Science & Technology Water Supply ◽

10.2166/ws.2004.0097 ◽

2004 ◽

Vol 4 (5-6) ◽

pp. 95-102 ◽

Cited By ~ 5

Author(s):

T. Takaara ◽

D. Sano ◽

H. Konno ◽

T. Omura

Keyword(s):

Molecular Weight ◽

Drinking Water ◽

Water Treatment ◽

High Capacity ◽

Algal Growth ◽

Drinking Water Treatment ◽

Gel Chromatography ◽

Drinking Water Source ◽

Form Complex ◽

Organic Matters

Mass propagation of algae in drinking water source affects the coagulation process in water treatment systems. Many researchers indicated that some kinds of algal organic matters (AOMs) interacted with coagulants by coordinate bonds and brought about several disorders due to the increase in both the coagulant demand and the residual coagulant in treated water. However, the inhibitory mechanism on the coagulation by AOMs has not been fully elucidated. In this study, AOMs able to form complex with aluminium coagulant were isolated and analyzed. The results of the gel chromatography showed that extracellular organic matters (EOMs) from Microcystis aeruginosa (NIES-91) have molecular weight of between 10 and 20 kDa, around 40 kDa and more than 600 kDa. The amount and diversity of EOMs increased as the algal growth. AOMs able to form complex with aluminium coagulant were successfully isolated with the affinity chromatography. SDS-PAGE analysis revealed that these AOMs included proteins that have molecular weight between 43 and 67 kDa. Since several kinds of proteins such as metallothionein are known for strongly adsorbing multivalent cations, the isolated algal proteins able to form complex with aluminium might have a high capacity of capturing coagulants and inhibit the coagulation in the drinking water treatment.

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Treatment of spent filter backwash water from drinking water treatment with immersed ultrafiltration membranes

Desalination and Water Treatment ◽

10.1080/19443994.2013.774142 ◽

2013 ◽

Vol 51 (25-27) ◽

pp. 4901-4906 ◽

Cited By ~ 2

Author(s):

Josip Ćurko ◽

Ivan Mijatović ◽

Dean Rumora ◽

Vlado Crnek ◽

Marin Matošić ◽

...

Keyword(s):

Drinking Water ◽

Water Treatment ◽

Drinking Water Treatment ◽

Ultrafiltration Membranes ◽

Filter Backwash Water

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Fouling behavior of polyethersulfone ultrafiltration membranes functionalized with sol–gel formed ZnO nanoparticles

RSC Advances ◽

10.1039/c5ra05783c ◽

2015 ◽

Vol 5 (63) ◽

pp. 50711-50719 ◽

Cited By ~ 31

Author(s):

Xin Li ◽

Jiansheng Li ◽

Bart Van der Bruggen ◽

Xiuyun Sun ◽

Jinyou Shen ◽

...

Keyword(s):

Drinking Water ◽

Water Treatment ◽

Zno Nanoparticles ◽

Potential Application ◽

Sol Gel ◽

Wastewater Reuse ◽

Drinking Water Treatment ◽

Ultrafiltration Membranes ◽

Pes Membrane

The addition of sol–gel formed ZnO nanoparticles endows the PES membrane with an improved antifouling performance, which expands the potential application of UF membrane in drinking water treatment and wastewater reuse.

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