Removal of emerging organic micropollutants via modified-reverse osmosis/nanofiltration membranes: A review

Khoo, Ying Siew; Goh, Pei Sean; Lau, Woei Jye; Ismail, Ahmad Fauzi; Abdullah, Mohd Sohaimi; Ghazali, Nor Hisham Mohd; Yahaya, Nasehir Khan E.M.; Hashim, Norbaya; Othman, Ahmad Rozian; Mohammed, Alias; Kerishnan, Nirmala Devi A/P Kerisnan@; Yusoff, Muhammad Azroie Mohamed; Hashim, Nik Mohd Hazrul Nik; Karim, Jamilah; Abdullah, Nor Salmi

doi:10.1016/j.chemosphere.2022.135151

Cited by 43 publications

(6 citation statements)

References 178 publications

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“…Important parameters include the molecular size of EDCs, which enables size exclusion effects and steric effects rendered by the membrane surface, which allows for repulsion of EDC molecules from the membrane. The log of the octanol water (logK ow ) and dipolar interaction of the EDC compounds also play important roles in EDC rejection [61,62].…”

Section: Removal Of Endocrine-disruptive Chemicals Through Reverse Os...mentioning

confidence: 99%

The Treatment of Endocrine-Disruptive Chemicals in Wastewater through Asymmetric Reverse Osmosis Membranes: A Review

et al. 2023

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Endocrine-disrupting chemicals (EDCs) present in aquatic environment have been regarded as detrimental organic pollutants that pose significant adverse impacts on human health and the aquatic ecosystem. The removal of EDCs is highly desired to mitigate their harmful effects. Physical treatment through membrane-based separation processes is an attractive approach, as it can effectively remove a wide range of recalcitrant organic and nonorganic EDCs. In particular, the reverse osmosis (RO) process has shown promise in removing EDCs of various concentrations and from different sources. Recently, the development of innovative asymmetric RO membranes has become the forefront in this field. Various membrane modification strategies have been commenced to address the limitations of commercial membranes. This review provides an overview of the recent advances in asymmetric RO membranes for EDC removal from water and wastewater system. The potential areas of improvement for RO processes and RO membranes are also highlighted. Based on the existing literature using RO for EDC removal from water, the most investigated EDCs are bisphenol A (BPA) and caffeine in the concentration range of 200 ppb to 100 ppm. Polyamide RO membranes have been shown to remove EDCs from water bodies with a removal efficiency of ~30 to 99%, largely depending on the type and concentration of the treated EDCs, as well as the properties of the RO membranes. It has been demonstrated that the performance can be further heightened by tailoring the properties of RO membranes and optimizing the operating conditions of the RO process.

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Section: Removal Of Endocrine-disruptive Chemicals Through Reverse Os...mentioning

confidence: 99%

The Treatment of Endocrine-Disruptive Chemicals in Wastewater through Asymmetric Reverse Osmosis Membranes: A Review

et al. 2023

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“…The fourth category includes pharmaceuticals, arising from widespread medication use, that enter water sources through industrial and sewage discharges. Antibiotics, painkillers, and various therapeutic drugs contribute to concerns about antibiotic resistance and potential health risks [10][11][12][13]. Many of these MPs are removed by conventional treatment; however, some remain unaffected and enter the environment [14,15].…”

Section: Introductionmentioning

confidence: 99%

“…To date, numerous studies have compiled the latest advancements in the removal of pharmaceuticals, antibiotics, and micropollutants from wastewater with various advanced treatment technologies, including advanced oxidation processes, activated carbon adsorption, membrane filtration, advanced biological processes, and combined approaches [13,22,[34][35][36][37][38][39][40][41][42]. Moreover, Bui et al [18] reviewed the removal of micropollutants with various industrial-scale treatment technologies, providing a foundational understanding.…”

Section: Introductionmentioning

confidence: 99%

Integrated and Hybrid Processes for the Treatment of Actual Wastewaters Containing Micropollutants: A Review on Recent Advances

Asheghmoalla,

Mehrvar

2024

Processes

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The global concern regarding the release of micropollutants (MPs) into the environment has grown significantly. Considerable amounts of persistent micropollutants are present in industrial discharges. Depending solely on a singular treatment approach is inadequate for the effective removal of MPs from wastewater due to their complex composition. The performance of different treatment methods to meet the discharge standards has been widely studied. These efforts are classified as hybrid and sequential processes. Despite their adequate performance, the optimization and industrial application of these methods could be challenging and costly. This review focuses on integrated (sequential) and hybrid processes for MP removal from actual wastewater. Furthermore, to provide a thorough grasp of the treatment approaches, the operational conditions, the source of wastewater containing MPs, and its characteristics are detailed. It is concluded that the optimal sequence to achieve the removal of MPs involves biological treatment followed by an advanced oxidation process (AOP) with a final passage through an activated carbon column. To refine this process further, a membrane unit could be added based on the desired effluent quality. Nevertheless, considering practical feasibility, this study identifies specific areas requiring additional research to implement this integrated treatment strategy effectively.

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“…Membrane-based separation techniques have become highly relevant in water separation and purification as they are faster and environmentally benign [ 3 ]. Nanofiltration (NF)/reverse osmosis (RO) membranes are commonly used for seawater desalination and for the removal of heavy metals and organic contaminants (with a molecular weight cut-off (MWCO) range of 50–1000 Da or 200–1000) [ 4 ]. The NF membrane has garnered significant interest in recent years because it produces a higher water flux at low operating pressure and has an excellent separation rate against multivalent salts and small molecules [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

ZnO/PDA/Mesoporous Cellular Foam Functionalized Thin-Film Nanocomposite Membrane towards Enhanced Nanofiltration Performance

et al. 2023

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Thin-film nanocomposite (TFN) membranes are the third-generation membranes being explored for nanofiltration applications. Incorporating nanofillers in the dense selective polyamide (PA) layer improves the permeability–selectivity trade-off. The mesoporous cellular foam composite Zn-PDA-MCF-5 was used as a hydrophilic filler in this study to prepare TFN membranes. Incorporating the nanomaterial onto the TFN-2 membrane resulted in a decrease in the water contact angle and suppression of the membrane surface roughness. The pure water permeability of 6.40 LMH bar−1 at the optimal loading ratio of 0.25 wt.% obtained was higher than the TFN-0 (4.20 LMH bar−1). The optimal TFN-2 demonstrated a high rejection of small-sized organics (>95% rejection for 2,4-dichlorophenol over five cycles) and salts—Na2SO4 (≈95%) > MgCl2 (≈88%) > NaCl (86%) through size sieving and Donnan exclusion mechanisms. Furthermore, the flux recovery ratio for TFN-2 increased from 78.9 to 94.2% when challenged with a model protein foulant (bovine serum albumin), indicating improved anti-fouling abilities. Overall, these findings provided a concrete step forward in fabricating TFN membranes that are highly suitable for wastewater treatment and desalination applications.

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Removal of emerging organic micropollutants via modified-reverse osmosis/nanofiltration membranes: A review

Cited by 43 publications

References 178 publications

The Treatment of Endocrine-Disruptive Chemicals in Wastewater through Asymmetric Reverse Osmosis Membranes: A Review

The Treatment of Endocrine-Disruptive Chemicals in Wastewater through Asymmetric Reverse Osmosis Membranes: A Review

Integrated and Hybrid Processes for the Treatment of Actual Wastewaters Containing Micropollutants: A Review on Recent Advances

ZnO/PDA/Mesoporous Cellular Foam Functionalized Thin-Film Nanocomposite Membrane towards Enhanced Nanofiltration Performance

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