Rejection properties of NF membranes for alkylphenols

Jung, Yong Jun; Kiso, Yoshiaki; Park, Han J.; Nishioka, Kunimasa; Min, Kyung Sok

doi:10.1016/j.desal.2005.12.065

Cited by 23 publications

(13 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The membrane characterizes a high degree of retention of NaCl (Table 2), making it similar to the membranes applied in the reverse osmosis process. Jung et al [13] found that the degree of retention of NaCl could be a determinant of the separation properties of nanofiltration membranes during nanofiltration of organic micropollutants. The CK cellulose membrane also characterized the highest value of the contact angle equal to 54° in comparison with other investigated membranes.…”

Section: Influence Of Membrane Properties Operating Mode and Feed Wamentioning

confidence: 99%

“…Pressure-driven membrane processes, especially reverse osmosis (RO) and nanofiltration (NF) are considered a proper method for removal of organic micropollutants from water [10][11][12][13][14][15][16][17][18][19][20][21][22]. Even though the higher retention of low molecular weight organic compounds is observed for reverse osmosis, however complete water desalination obtained during the process makes nanofiltration more suitable for drinking water treatment technology.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Retention of mycoestrogens in nanofiltration. Impact of feed water chemistry, membrane properties and operating process conditions

Dudziak¹

2012

Environ. Protect. Eng.

View full text Add to dashboard Cite

The membrane process, i.e. nanofiltration, was considered a method for removal of mycoestrogens, compounds recently identified in aqueous environment, from water. The study was focused on the determination of the separation mechanism and on the possibility of removal of mycoestrogens in the applied process. Retention of zearalenone and α-zearalenol was investigated depending on the water matrix composition, the membrane applied, filtration mode and operating conditions of the process. As removed mycoestrogens reveal hydrophobic character, the separation mechanisms is based on the adsorption. Retention of those compounds is also dependent on the membrane type and the filtration mode. The highest effectiveness of mycoestrogens removal was obtained for cellulose membrane (CK), which characterized the highest values of the contact angle and the degree of NaCl removal in comparison with other composite membranes applied. Additionally, the CK membrane showed the highest ability to adsorb investigated micropollutants. However, the variation of retention of mycoestrogens was observed as the membrane surface was modified by inorganic and/or organic substances present in filtrated water. The degree of removal of mycoestrogens during nanofiltration exceeded 81% and considering the effectiveness and the capacity of the process, the cross-flow mode should be applied.

show abstract

Section: Influence Of Membrane Properties Operating Mode and Feed Wamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Retention of mycoestrogens in nanofiltration. Impact of feed water chemistry, membrane properties and operating process conditions

Dudziak¹

2012

Environ. Protect. Eng.

View full text Add to dashboard Cite

show abstract

“…In another study, the rejections of organic components by four NF membranes were investigated [44]. No significant relationship between the adsorption and rejection was observed in some cases.…”

Section: The Effect Of Triazines' Hydrophobicitymentioning

confidence: 98%

“…In addition to molecular weight, molecular size, and hydrophobicity, dipole moment of molecules should be considered an important parameter to control atrazines' permeation through NF membranes [44][45][46]. The rejection degree vs. dipole moment of studied triazines is illustrated in Fig.…”

Section: The Effect Of Dipole Momentmentioning

confidence: 99%

Removal of triazines from water using a novel OA modified SiO 2 /PA/PSf nanocomposite membrane

Rakhshan

Pakizeh

2015

Separation and Purification Technology

View full text Add to dashboard Cite

“…BPA rejection by membranes ranges from 18 % (Kimura et al 2004) to [99.9 % (Agenson et al 2003). This wide range of rejection rates is due to the fact that there is a strong relationship between rejection rate and membrane type; for phenolic compounds in particular, there is a linear relationship between rejection efficiency and molecular weight cut-off (Jung et al 2007). For this reason, the rejection efficiency of EDCs, including BPA, decreases in the following order: reverse osmosis (RO), nanofiltration (NF), ultrafiltration (UF) and microfiltration (MF).…”

Section: Introductionmentioning

confidence: 99%

Removal of bisphenol A (BPA) from biologically treated wastewater by microfiltration and nanofiltration

Zielińska

Bułkowska

Cydzik‐Kwiatkowska

et al. 2016

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

Bisphenol A (BPA) is an endocrine disruptor that is difficult to completely remove from wastewater by conventional biological methods. Increased post-treatment BPA removal with ceramic membranes is worth investigating because of these membranes' mechanical and chemical stability and lifespan. To determine the effectiveness of ceramic membranes for post-treatment of biologically treated BPA-contaminated wastewater, microfiltration (MF) and nanofiltration (NF) were conducted. Both processes removed BPA completely at an initial BPA concentration of 0.3 ± 0.14 mg/L. Increased concentration of 0.7 ± 0.29 mg/L decreased BPA removal. MF removed at least 24 % of BPA, presumably because BPA was adsorbed on particulate matter, which was retained by the membrane, or adsorbed on its surface. NF removed up to thrice more BPA. MF and NF completely removed suspended solids and 40-60 % COD. Filtration capacity decreased with time due to fouling but did not depend on initial BPA concentration. BPA concentrations in municipal wastewater are typically lower than the lowest concentration tested, where MF completely removed BPA. Hence, MF ceramic membranes appear a promising solution for post-treatment of BPA-containing wastewater. MF can be used at a much lower transmembrane pressure than NF, requiring less energy to pump wastewater through the membrane, thus reducing costs.

show abstract

Rejection properties of NF membranes for alkylphenols

Cited by 23 publications

References 18 publications

Retention of mycoestrogens in nanofiltration. Impact of feed water chemistry, membrane properties and operating process conditions

Retention of mycoestrogens in nanofiltration. Impact of feed water chemistry, membrane properties and operating process conditions

Removal of triazines from water using a novel OA modified SiO 2 /PA/PSf nanocomposite membrane

Removal of bisphenol A (BPA) from biologically treated wastewater by microfiltration and nanofiltration

Contact Info

Product

Resources

About