The application of microfiltration-reverse osmosis/nanofiltration to trace organics removal for municipal wastewater reuse

Garcia, N. Martin; Moreno, Jordi; Cartmell, Elise; Rodríguez-Roda, Ignasi; Judd, Simon

doi:10.1080/09593330.2013.808244

Cited by 51 publications

(19 citation statements)

References 20 publications

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“…The substances with the highest concentrations in the inflow were salicylic acid, ibuprofen and bisphenol-A (6.3 - Garcia et al [28] assessed the removal of 20 micropollutants at a WTS equipped with tertiary treatment with MF and RO membranes in sequence, finding that only ibuprofen and nonylphenol were not efficiently removed (<30%), in contrast to the other substances (>75%). Therefore, they decided to study the removal of the two former substances in a pilot plant having a membrane bioreactor (MBR) system followed by a MSP system, alternating with NF and RO membranes.…”

Section: Membrane Separation Processmentioning

confidence: 99%

Micropollutant Removal from Water by Membrane and Advanced Oxidation Processes—A Review

Silva¹,

Moreira²,

Curzio³

et al. 2017

JWARP

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Micropollutants are defined as contaminants found in trace concentrations in water bodies that are persistent and bioactive, meaning they are not completely biodegradable and cannot be removed by conventional water treatment methods. Because of these aspects, their detection and removal pose a challenge to the scientific community. Among them are endocrine disruptors, drugs, agricultural chemicals, personal grooming products, industrial additives and others. These micropollutants are the cause for global concern, because their presence in water supply systems is suspected of causing health problems in humans and animals. To develop efficient techniques to remove them, it is fundamental to understand their physico-chemical properties and the available treatment types and conditions. Membrane separation processes (MSPs) and advanced oxidation processes (AOPs) are the focus of this literature review, as potential treatment methods to remove micropollutants. The former process stands out for high rejection rates (above 90%) of various micropollutants, but it generates a concentrated secondary waste stream. In turn, the latter process can remove micropollutants without generating secondary wastes, and can also be applied and combined with other treatment methods.

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Section: Membrane Separation Processmentioning

confidence: 99%

Micropollutant Removal from Water by Membrane and Advanced Oxidation Processes—A Review

Silva¹,

Moreira²,

Curzio³

et al. 2017

JWARP

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“…However, different comparative works [22,39,43,71] concluded that, although the retention of microcontaminants by NF is lower than that obtained by RO, the latter has demonstrated only marginally increased rejection in comparison with NF.…”

Section: Membrane Filtrationmentioning

confidence: 84%

“…The authors suggested RO as the final step in a water reuse application, where removal of microcontaminants is of particular concern. Garcia et al [43] studied the efficiency in the removal of 22 "priority" microcontaminants in a municipal WWTP for water reuse using MF and RO. Although MF was able to remove some compounds by more than 50%, the incorporation of RO significantly enhanced the removal efficiency, ranging from 65% to 90% for most microcontaminants other than naphthalene and ibuprofen.…”

Section: Nanofiltration and Reverse Osmosismentioning

confidence: 99%

Treatment Technologies for Wastewater Reuse: Fate of Contaminants of Emerging Concern

González

Bayarri

Aceña

et al. 2015

The Handbook of Environmental Chemistry

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The presence of thousands of microcontaminants in wastewaters and their potential risks has drawn a large attention of the scientific community during the last years. The presence of these contaminants is especially controversial when wastewater is considered for reuse because a large number of microcontaminants are frequently not totally removed by conventional wastewater treatment processes. As a contribution to the knowledge in this field, this chapter focuses on the application of four well-known and widely used technologies to the elimination of microcontaminants. Membranes, activated carbon, ozonation, and advanced oxidation processes (AOPs) are deeply reviewed to assess their efficiency and safety in the elimination of these contaminants from wastewater effluents. A brief description of each technology is presented together with a review of their real application, mostly in wastewater treatment plants (WWTPs). A deep analysis of the found data allows to conclude that the four presented alternatives can be useful for microcontaminant mitigation although none of them seem to be a universal barrier for microcontaminants when used separately. In addition, each technology presents drawbacks which demand further research to be overcome. Depending on the final use of reclaimed water, the treatment may require the combination of several of the studied technologies although that results in an economic impact which cannot be neglected.

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“…Therefore, these processes should be combined with other treatment methods such as nanofiltration (NF) or reverse osmosis (RO). Garcia et al (2013) combined the MF and RO processes in order to remove micropollutants for reuse of domestic wastewater. For example, DEHP was removed up to 50 % with only microfiltration treatment.…”

Section: Membrane Processesmentioning

confidence: 99%

Treatment Alternatives for Micropollutant Removal in Wastewater

Nas¹,

Dolu²,

Ateş³

et al. 2017

Scitech

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Present of micropollutants in aquatic environments has become an alarming environmental problem for both living creatures and environment. Micropollutants, also called as emerging contaminants arise from natural substances and increasing variety of anthropogenic events. Micropollutants consist of pharmaceuticals, personal care products, steroid hormones, industrial chemicals, pesticides, polyaromatic hydrocarbons and other recently seen compounds. These emerging contaminants are commonly found in very low concentration in different water bodies ranging from a few ng/l to several μg/l. Many existing Wastewater Treatment Plants (WWTPs) in all over the world are not especially designed for removing micropollutants. Low concentration and diversity of micropollutants complicate the dedection and analysis procedures during the treatment processes. Furthermore, entering micropollutants to the WWTPs continuously and stable structure of many micropollutants make difficult to eliminate these emerging compounds sufficiently. Therefore, many micropollutants of unknown concentration pass to aquatic environment from WWTPs. The occurence of micropollutants with a significant levels in aquatic environments disrupt the aquatic ecosystems with a number of adverse effects including short-term and long-term toxicity such as endocrine disrupting effects. Besides the known negative effects of micropollutants there are great number of micropollutants whose effects on living organisms are still unknown. As a result, removing these compounds is of a great importance both to protect environmental ecosystem and human health. Considering that the conventional methods are insufficient for removing the micropollutants other alternative treatment methods including coagulation-flocculation, activated carbon adsorption (powdered activated carbon and granular activated carbon), advanced oxidation processes (AOPs), membrane processes and membrane bioreactor can be applied for better removal. In this study, alternative treatments methods and removal efficiencies of each treatment methods on different micropollutants were investigated and all alternative treatment methods were compared between each other in terms of micropollutant removal rates.

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The application of microfiltration-reverse osmosis/nanofiltration to trace organics removal for municipal wastewater reuse

Cited by 51 publications

References 20 publications

Micropollutant Removal from Water by Membrane and Advanced Oxidation Processes—A Review

Micropollutant Removal from Water by Membrane and Advanced Oxidation Processes—A Review

Treatment Technologies for Wastewater Reuse: Fate of Contaminants of Emerging Concern

Treatment Alternatives for Micropollutant Removal in Wastewater

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