NOM fouling behavior during ultrafiltration: Effect of membrane hydrophilicity

Chen, Xiangrong; Luo, Jianquan; Qi, Benkun; Cao, Weifeng; Wan, Yinhua

doi:10.1016/j.jwpe.2015.04.009

Cited by 30 publications

(13 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, binary metal oxide incorporated SPEEK/PES MMMs also exhibited lower flux decline for ternary mixture (Figure 9c) with respect to humic acid (Figure 9a) and sodium alginate (Figure 9b) filtration. This may be due to the formation of hybrid sodium alginate‐humic acid complex through Na + ions in electrolyte and carboxylic groups present in humic acid and sodium alginate, respectively 38,39 . The formation of cake layer over the membrane surface and the interaction between membrane and foulants are schematically illustrated in Figure 10.…”

Section: Resultsmentioning

confidence: 99%

“…This may be due to the formation of hybrid sodium alginate-humic acid complex through Na + ions in electrolyte and carboxylic groups present in humic acid and sodium alginate, respectively. 38,39 The formation of cake layer over the membrane surface and the interaction between membrane and foulants are schematically illustrated in Figure 10. It is also evidenced from the flux reduction shown in Table 3.…”

Section: Biofouling Studiesmentioning

confidence: 99%

See 1 more Smart Citation

Binary metal oxides incorporated polyethersulfone ultrafiltration mixed matrix membranes for the pretreatment of seawater desalination

Thuyavan

Arthanareeswaran

Ismail

et al. 2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

In this study, an attempt was made to pretreat seawater using polyethersulfone (PES) mixed matrix membranes (MMMs) incorporated with titania-based binary metal oxides. Two different titania-based binary metal oxides were prepared, namely titania-zirconia (TiZr) and titania-zinc oxide (TiZn). The influence of hydrophilic and negatively charged sulfonated poly(ether ether ketone) (SPEEK) polymer as additive of PES MMMs was also studied. Morphological and elemental analysis revealed that both ZrO 2 and ZnO were well dispersed in the as-prepared binary metal oxide TiZr and TiZn, respectively.. Thermogravimetry analysis indicated the good compatibility of TiZr and TiZn with the SPEEK/PES polymer. The binary metal oxide incorporated SPEEK/ PES MMMs exhibited improved hydrophilic properties with a low water contact angle of 57 ± (0.6). SPEEK/PES MMMs incorporated with 0.5 wt% TiZr exhibited the highest permeability of 3.11 × 10 −7 ± (0.2) m/sÁkPa. Seawater pretreatment performance of membranes evaluated using natural organic matters containing high salinity feed water. TiZr and TiZn incorporated SPEEK/ PES MMMs exhibited 95% rejection for humic acid. SPEEK/PES MMMs loaded with 0.5 wt% TiZr also showed the highest water flux and 87% water recovery within 90 min of seawater filtration. Both PES/SPEEK/TiZr and PES/SPEEK/ TiZn MMMs exhibited superior antibacterial activity.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Biofouling Studiesmentioning

confidence: 99%

Binary metal oxides incorporated polyethersulfone ultrafiltration mixed matrix membranes for the pretreatment of seawater desalination

Thuyavan

Arthanareeswaran

Ismail

et al. 2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…As mentioned earlier, at a higher dosage of PF127, a high density PEO brush layer may be established at the membrane–water interface. This highly dense hydrophilic PEO moiety that stretches out into the aqueous environment could hinder solute adsorption onto the membrane surface by forming a highly hydrated compact layer on it . The increase in work of adhesion reveals substantial enhancement of adhesive force which is an indirect indication of the increased wetting property of the respective M .04 membrane.…”

Section: Resultsmentioning

confidence: 99%

Customized antifouling polyacrylonitrile ultrafiltration membranes for effective removal of organic contaminants from aqueous stream

Melbiah

Joseph

Rana

et al. 2018

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

BACKGROUND: Ultrafiltration (UF) is a promising separation technique for the removal of macromolecular contaminants. However, the hydrophobic polymeric UF membrane performance suffers from fouling in the long run due to clogging by contaminants at the surface and pores. In this study, anti-fouling hydrophilic polyacrylonitrile (PAN) UF membranes in the presence of an amphiphilic triblockcopolymer, Pluronic F127 (PF127) were prepared via a phase inversion technique. RESULTS: The effect of varying concentrations of PF127 on PAN UF membranes was analyzed by attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The filtration characteristics of the membranes were measured in terms of pure water flux, membrane porosity and water content. The separation efficiency of the membranes is explored for contaminants such as bovine serum albumin (BSA), humic acid (HA) and oil. The results revealed that the PAN membrane with 4 wt% of PF127 produced greatest permeate flux of 391 L m −2 h −1 with minimal fouling. A higher solute rejection of more than 90% was observed for the tailored membranes due to the improvement in surface properties. CONCLUSION:The inherent hydrophilicity of the high density poly (ethylene oxide) brush-like layer of PF127 at the membrane-water interface is utilized effectively to restrict the adsorption of the organic contaminants onto the membrane surface. After simple hydraulic washing of PAN/PF127 UF membranes, the flux recovery ratio was augmented which is ascribed to their excellent antifouling property and potential use in water treatment. Reversible flux decline, DRrTotal flux decline,J Chem Technol Biotechnol 2019; 94: 859-868 Pure water permeationPure water flux is considered to be the key factor for any UF membrane. The pure water flux profile obtained for the various J Chem Technol Biotechnol 2019; 94: 859-868

show abstract

“…Such results suggested that the membrane material rather than the MWCO was the most determining factor during product separation for the membranes with larger pore size. It was speculated that the oligodextran molecules with abundant hydroxyl groups had stronger interaction with the hydrophilic RC and PAN membranes, inducing more transmission of large dextrans through the membrane [25]. On the other hand, the permeate flux in the PAN10-EMR was much lower than that in RC10-EMR and PES10-EMR ( Fig.…”

Section: Effect Of Mwco and Membrane Materialsmentioning

confidence: 95%

Directing filtration to narrow molecular weight distribution of oligodextran in an enzymatic membrane reactor

Luo

Pinelo

et al. 2018

Journal of Membrane Science

Self Cite

View full text Add to dashboard Cite

 Users may download and print one copy of any publication from the public portal for the purpose of private study or research.  You may not further distribute the material or use it for any profit-making activity or commercial gain  You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.

show abstract

NOM fouling behavior during ultrafiltration: Effect of membrane hydrophilicity

Cited by 30 publications

References 39 publications

Binary metal oxides incorporated polyethersulfone ultrafiltration mixed matrix membranes for the pretreatment of seawater desalination

Binary metal oxides incorporated polyethersulfone ultrafiltration mixed matrix membranes for the pretreatment of seawater desalination

Customized antifouling polyacrylonitrile ultrafiltration membranes for effective removal of organic contaminants from aqueous stream

Directing filtration to narrow molecular weight distribution of oligodextran in an enzymatic membrane reactor

Contact Info

Product

Resources

About