Nanofiltration and ultrafiltration of endocrine disrupting compounds, pharmaceuticals and personal care products

Yoon, Yeomin; Westerhoff, Paul; Snyder, Shane A.; Wert, Eric C.

doi:10.1016/j.memsci.2005.06.045

Cited by 437 publications

(214 citation statements)

References 32 publications

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“…High TOrC rejection (>85%) by NF and RO has been demonstrated in bench-, 6,7 pilot-, 5 and full-scale studies 3,4 treating tertiary treated effluent for water reuse. The removal of TOrCs through semipermeable membranes used for these processes is a function of the physicochemical properties of the compound such as molecular weight, charge, and hydrophilicity, as well as of the membrane, such as charge, hydrophilicity, and salt permeability.…”

Section: Introductionmentioning

confidence: 94%

Removal of Trace Organic Chemicals and Performance of a Novel Hybrid Ultrafiltration-Osmotic Membrane Bioreactor

Holloway

Regnery

Nghiem

et al. 2014

Environ. Sci. Technol.

133

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A hybrid ultrafiltration-osmotic membrane bioreactor (UFO-MBR) was investigated for over 35 days for nutrient and trace organic chemical (TOrC) removal from municipal wastewater. The UFO-MBR system uses both ultrafiltration (UF) and forward osmosis (FO) membranes in parallel to simultaneously extract clean water from an activated sludge reactor for nonpotable (or environmental discharge) and potable reuse, respectively. In the FO stream, water is drawn by osmosis from activated sludge through an FO membrane into a draw solution (DS), which becomes diluted during the process. A reverse osmosis (RO) system is then used to reconcentrate the diluted DS and produce clean water suitable for direct potable reuse. The UF membrane extracts water, dissolved salts, and some nutrients from the system to prevent their accumulation in the activated sludge of the osmotic MBR. The UF permeate can be used for nonpotable reuse purposes (e.g., irrigation and toilet flushing). Results from UFO-MBR investigation illustrated that the chemical oxygen demand, total nitrogen, and total phosphorus removals were greater than 99%, 82%, and 99%, respectively. Twenty TOrCs were detected in the municipal wastewater that was used as feed to the UFO-MBR system. Among these 20 TOrCs, 15 were removed by the hybrid UFO-MBR system to below the detection limit. High FO membrane rejection was observed for all ionic and nonionic hydrophilic TOrCs and lower rejection was observed for nonionic hydrophobic TOrCs. With the exceptions of bisphenol A and DEET, all TOrCs that were detected in the DS were well rejected by the RO membrane. Overall, the UFO-MBR can operate sustainably and has the potential to be utilized for direct potable reuse applications.

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Section: Introductionmentioning

confidence: 94%

Removal of Trace Organic Chemicals and Performance of a Novel Hybrid Ultrafiltration-Osmotic Membrane Bioreactor

Holloway

Regnery

Nghiem

et al. 2014

Environ. Sci. Technol.

133

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“…However, the studies on the use of RO/NF for pharmaceutical removal is limited and most of the studies employed NF and RO membranes for tertiary treatment in wastewater recycling plant or for treating saline groundwater. (Nghiem et al, 2005;Yoon et al, 2006;Snyder et al, 2007). RO in differ ent configurations showed efficient removal of thirty-six personal care products and endocrine disrupting chemicals including antibiotics, lipid regulators, hormones and oral contraceptives, antiepileptics and analgesics (Snyder et al, 2007;Watkinson et al, 2007).…”

Section: Membrane Processesmentioning

confidence: 99%

Treatment options for wastewater effluents from pharmaceutical companies

Deegan

Basha

Nolan

et al. 2011

Int. J. Environ. Sci. Technol.

295

126

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“…This occurs due to low estrone feed concentrations, where the amount of adsorption sites available on the membrane allows for adsorption of almost all the contaminant. High adsorption of xenobiotics have also been obtained in several UF studies [148,146,29]. Fluoranthene and 17β-estradiol adsorbs onto UF membranes from >70% for fluoranthene and >34% for estradiol [148].…”

Section: Xenobiotics Removal By Mf and Ufmentioning

confidence: 82%

“…Pore blockage by NOM also causes less access for adsorption sites, decreasing the rate of adsorption and therefore decreasing retention of xenobiotics. This has been shown to happen for steroid hormones, pharmaceuticals and pesticides [23,148,146,29]. …”

Section: Solute-solute Interaction and Retention By Mf And Ufmentioning

confidence: 96%

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Xenobiotics Removal by Membrane Technology: An Overview

Semiao

Schäfer

2009

Environmental Pollution

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Small molecular weight xenobiotics are compounds of extreme concern in potable water applications due to their adverse human health and environmental effects. However, conventional water treatment processes cannot fully and systematically remove them due to their low concentrations in natural waters and wastewaters. Biological limitation to degrade such compounds is another cause for inefficient removal.Physical barriers like membranes possessing pore sizes smaller than the compounds to be removed emerged as a good solution. Nanofiltration and reverse osmosis proved to be quite effective for xenobiotics removal in potable water production in the Paris purification plant of Méry-sur-Oise. However, even these very narrow pore membrane processes may result in incomplete removal: xenobiotics retention is high but factors such as adsorption, size exclusion and charge repulsion affect unpredictably their retention. The water solutions complexity to be treated renders xenobiotics removal predictions even more difficult due to interactions between xenobiotics and compounds in water.Removal of xenobiotics by microfiltration and ultrafiltration is very low because adsorption on the membrane is the main retention mechanism. Combining those with other processes (e.g. activated carbon) can considerably improve xenobiotics removal.The least studied processes in xenobiotics removal are electrodialysis, membrane distillation and pervaporation. Electrodialysis removal of organic xenobiotics shows a breakthrough through the membrane possibly due to adsorption followed by diffusion. Membrane distillation presents high removal rates of xenobiotics due to the compounds low vapour pressure. For volatile organic xenobiotics or solutions of trace amounts both membrane distillation and pervaporation can be used, xenobiotics interaction with the membrane being the key factor.In this book chapter a thorough synopsis of current knowledge on xenobiotics removal is presented and balanced with recent fundamental studies of underlying mechanisms, informing both the practitioner regarding membrane capabilities for xenobiotics removal and the researcher with the current state-of-art.

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Nanofiltration and ultrafiltration of endocrine disrupting compounds, pharmaceuticals and personal care products

Cited by 437 publications

References 32 publications

Removal of Trace Organic Chemicals and Performance of a Novel Hybrid Ultrafiltration-Osmotic Membrane Bioreactor

Removal of Trace Organic Chemicals and Performance of a Novel Hybrid Ultrafiltration-Osmotic Membrane Bioreactor

Treatment options for wastewater effluents from pharmaceutical companies

Xenobiotics Removal by Membrane Technology: An Overview

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