A review of advances in EDCs and PhACs removal by nanofiltration: Mechanisms, impact factors and the influence of organic matter

Wang, Shichong; Li, Lei; Yu, Shuili; Dong, Bingzhi; Gao, Naiyun; Wang, Xianyun

doi:10.1016/j.cej.2020.126722

Cited by 124 publications

(38 citation statements)

References 146 publications

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“…There are numerous indicators for assessing these properties, such as hydrophobicity, MWCO, charge, molecular size, diffusion coefficient, and among others. These parameters should be adequately considered when investigating the influence of the three main mechanisms of compound removal in NF [ 136 ]. The RO and NF membranes could adequately retain a vast majority of EDCs pollutants, dissolved solutes, and salts owing to their molecular weight in the range of 200–400 Da [ 137 ].…”

Section: Rejection Of Edcs By Membranesmentioning

confidence: 99%

“…The isoelectric point and feed water quality play essential roles in charge exclusion during the separation process [ 136 ]. The NF membranes are amphiprotic, determined by their isoelectric point, and most NF membranes are negatively charged.…”

Section: Rejection Of Edcs By Membranesmentioning

confidence: 99%

“…In recap, the membrane intrinsic properties and frequent combination of removal mechanisms in particular charge effect/electrostatic interaction, size exclusion, and adsorption could facilitate the rejection of EDCs contaminants [ 123 , 136 ]. As elucidated from the above research findings, hydrophobic (pore) adsorption has been reported to play a critical role in UF and MF membrane’s rejection of EDCs contaminants.…”

Section: Rejection Of Edcs By Membranesmentioning

confidence: 99%

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Recent Advances in the Rejection of Endocrine-Disrupting Compounds from Water Using Membrane and Membrane Bioreactor Technologies: A Review

et al. 2021

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Water is a critical resource necessary for life to be sustained, and its availability should be secured, appropriated, and easily obtainable. The continual detection of endocrine-disrupting chemicals (EDCs) (ng/L or µg/L) in water and wastewater has attracted critical concerns among the regulatory authorities and general public, due to its associated public health, ecological risks, and a threat to global water quality. Presently, there is a lack of stringent discharge standards regulating the emerging multiclass contaminants to obviate its possible undesirable impacts. The conventional treatment processes have reportedly ineffectual in eliminating the persistent EDCs pollutants, necessitating the researchers to develop alternative treatment methods. Occurrences of the EDCs and the attributed effects on humans and the environment are adequately reviewed. It indicated that comprehensive information on the recent advances in the rejection of EDCs via a novel membrane and membrane bioreactor (MBR) treatment techniques are still lacking. This paper critically studies and reports on recent advances in the membrane and MBR treatment methods for removing EDCs, fouling challenges, and its mitigation strategies. The removal mechanisms and the operating factors influencing the EDCs remediation were also examined. Membranes and MBR approaches have proven successful and viable to eliminate various EDCs contaminants.

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Section: Rejection Of Edcs By Membranesmentioning

confidence: 99%

Section: Rejection Of Edcs By Membranesmentioning

confidence: 99%

Section: Rejection Of Edcs By Membranesmentioning

confidence: 99%

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Recent Advances in the Rejection of Endocrine-Disrupting Compounds from Water Using Membrane and Membrane Bioreactor Technologies: A Review

et al. 2021

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“…Among the different advanced treatment methods employed in the drinking water sector, for the effective removal of natural organic matter and organic contaminants of emerging concern, membrane filtration processes, including nanofiltration (NF) [5,6] and ultrafiltration (UF) in combination with upstream powdered activated carbon (PAC) adsorption (PAC/UF) [7][8][9][10][11] are the most popular. Full-scale installations can be found in France (Méry-sur-Oise plant in the northern part of Paris) [12], Lausanne (Switzerland), Vigneux (France), Kopper (Slovenia) and San Antonio (Texas) [12,13], where the main drivers for their adaptation have been the remediation of surface waters polluted with pesticides, taste and odours, as well as disinfection-by-products.…”

Section: Introductionmentioning

confidence: 99%

A Pilot Study of a Hybrid Process Involving In Situ Regenerated Activated Carbon, Membrane Separation and Advanced Oxidation for Water Pollution Abatement

Sarasidis

Plakas

Karabelas

2021

J. Chem. Eng. Res. Updates.

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The assessment of a pilot-scale hybrid system coupling powdered activated carbon (PAC) adsorption with membrane ultrafiltration (UF), in respect of activated carbon regeneration and organic micropollutant removal, was investigated in this study. Field tests with two adsorbents (i.e. a commercial PAC and a PAC-Fe(II) composite), conducted in the premises of Thessaloniki Water Treatment Plant, demonstrated the high efficiency of the combined PAC/UF process. Regeneration efficiencies varying between approximately 95% and 110%, complete diclofenac (DCF) degradation and rather moderate mineralization (TOC removal) rates of up to 47%, can be achieved by UVC/H2O2 or photo-Fenton oxidation after 4 hours of treatment; this performance is attributed to the in situ generation of reactive oxidant species by photolysis of H2O2, which seems to enhance the process effectiveness. Among the two adsorbent materials tested, composite PAC-Fe(II) exhibited a higher DCF adsorption capacity than the original PAC, probably due to the improved chemisorption and/or the electrostatic attractive interactions between the negatively charged DCF molecules and the positively charged iron species, at neutral pH. Furthermore, a rather insignificant effect of PAC-Fe(II) loading on the regeneration efficiency was observed. The advantages of totally controlled H2O2 dosages and short operating times render the hybrid PAC/UF system a promising alternative to conventional and advanced drinking water purification methods.

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“…However, this approach is quite expensive. Nanofiltration is also used to purify drinking water and has been applied increasingly in municipal water treatment plants because it has a high removal rate of organic pollutants, while it simultaneously reserves significant amounts of minerals beneficial for drinking water [18]. Compared with conventional drinking water treatment, membranes efficiently remove color and turbidity, ions (up to 97 %), metals and metalloids (ranging from 80 to 100 %) and pharmaceuticals [19].…”

Section: Introductionmentioning

confidence: 99%

Effective Approach to Water Purification From Microbiological Contamination Based on Novel Surface-Modified Adsorbents

Plotnikov¹,

Martemianova

Tin³

et al. 2020

REFFIT

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In this work, we provide a literature review of water treatment techniques and propose a novel resource-efficient solution for the purification of aqueous media from microbiological contamination. Methods: Combined filter sorbents were developed and studied based on novel modified nanostructured filter materials. Synthetic and natural zeolite were used as the mineral base. The production technique was optimized to coat minerals with aluminum oxyhydroxide by means of a sol–gel process. Additional treatment with fine zinc particles obtained by electrospark dispersion was applied to modify the sorbent surface and obtain the surface charge required. Results: The antibacterial, sorption and physicochemical properties of the samples as well as their surface structures were investigated. According to broad microbiological tests, the possibility of purifying bacterial-contaminated water was demonstrated to an acceptable level by means of adsorption filtration. Conclusion: The proposed novel approach for water treatment against bacterial contamination can be considered an alternative to the currently available water treatment technologies.

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A review of advances in EDCs and PhACs removal by nanofiltration: Mechanisms, impact factors and the influence of organic matter

Cited by 124 publications

References 146 publications

Recent Advances in the Rejection of Endocrine-Disrupting Compounds from Water Using Membrane and Membrane Bioreactor Technologies: A Review

Recent Advances in the Rejection of Endocrine-Disrupting Compounds from Water Using Membrane and Membrane Bioreactor Technologies: A Review

A Pilot Study of a Hybrid Process Involving In Situ Regenerated Activated Carbon, Membrane Separation and Advanced Oxidation for Water Pollution Abatement

Effective Approach to Water Purification From Microbiological Contamination Based on Novel Surface-Modified Adsorbents

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