Reverse osmosis concentrate: An essential link for closing loop of municipal wastewater reclamation towards urban sustainability

Zhang, Xiaoyuan; Liu, Yu

doi:10.1016/j.cej.2020.127773

Cited by 24 publications

(19 citation statements)

References 72 publications

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“…Membrane filtration processes (MF/UF/RO) are high-performing, low-maintenance, but costly technologies (Tables 1 and 2 ). The sustainability of RO process is often questioned due to high reject ratio (Zhang and Liu 2020 ). Therefore, application of this combination is suggestive for places where adherence to stringent quality standards is required.…”

Section: Resultsmentioning

confidence: 99%

Reuse-focused selection of appropriate technologies for municipal wastewater treatment: a multi-criteria approach

Srivastava

Singh

2021

Int. J. Environ. Sci. Technol.

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Section: Resultsmentioning

confidence: 99%

Reuse-focused selection of appropriate technologies for municipal wastewater treatment: a multi-criteria approach

Srivastava

Singh

2021

Int. J. Environ. Sci. Technol.

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“…The RO process has widely been used for seawater desalination since it is the most effective on a large scale [47]. It is shown that combining biological treatment with RO produces a permeate with a quality superior to the WHO standards for drinking water [48,49]. Bohdziewicz et al [50] investigated the application of membrane processes such as UF and RO to treat the wastewater of the meat industry.…”

Section: Reverse Osmosismentioning

confidence: 99%

Treatment of Poultry Slaughterhouse Wastewater with Membrane Technologies: A Review

Fatima

Kommalapati

2021

Water

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Poultry slaughterhouses produce a large amount of wastewater, which is usually treated by conventional methods. The traditional techniques face some challenges, especially the incapability of recovering valuable nutrients and reusing the treated water. Therefore, membrane technology has been widely adopted by researchers due to its enormous advantages over conventional methods. Pressure-driven membranes, such as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), and reverse osmosis (RO), have been studied to purify poultry slaughterhouse wastewater (PSWW) as a standalone process or an integrated process with other procedures. Membrane technology showed excellent performance by providing high efficiency for pollutant removal and the recovery of water and valuable products. It may remove approximately all the pollutants from PSWW and purify the water to the required level for discharge to the environment and even reuse for industrial poultry processing purposes while being economically efficient. This article comprehensively reviews the treatment and reuse of PSWW with MF, UF, NF, and RO. Most valuable nutrients can be recovered by UF, and high-quality water for reuse in poultry processing can be produced by RO from PSWW. The incredible performance of membrane technology indicates that membrane technology is an alternative approach for treating PSWW.

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“… 2 , 3 RO concentrate from water reuse applications contains high levels of salts, organics, and fecal-associated protozoa, bacteria, and viruses that are present in the input wastewater effluent. 4 MD is considered a viable process to recover water from RO concentrate and reduce the volume of RO concentrate to be disposed. 5 − 9 However, for water reuse applications, virus removal/rejection by the MD process must also be quantified.…”

Section: Introductionmentioning

confidence: 99%

“…Membrane distillation (MD) is a thermally driven membrane process that uses a temperature/vapor pressure gradient across a hydrophobic membrane as the driving force for transport of water vapor from an impure feed stream to a distillate stream . While reverse osmosis (RO) is a proven technology to produce high quality water from wastewater treatment effluent for water reuse applications, the cost and environmental impact of RO concentrate disposal is still a major process challenge. , RO concentrate from water reuse applications contains high levels of salts, organics, and fecal-associated protozoa, bacteria, and viruses that are present in the input wastewater effluent . MD is considered a viable process to recover water from RO concentrate and reduce the volume of RO concentrate to be disposed. − However, for water reuse applications, virus removal/rejection by the MD process must also be quantified.…”

Section: Introductionmentioning

confidence: 99%

Membrane Distillation Provides a Dual Barrier for Coronavirus and Bacteriophage Removal

Hardikar

Ikner

Felix

et al. 2021

Environ. Sci. Technol. Lett.

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The persistence of pathogenic microorganisms in treated wastewater effluent makes disinfection crucial to achieve wastewater reuse. Membrane processes such as ultrafiltration and reverse osmosis (RO) have shown promising results for virus and other contaminant removal from treated wastewater effluents for reuse application. However, RO produces a concentrate stream which contains high concentrations of pathogens and contaminants that often requires treatment and volume reduction before disposal. Membrane distillation (MD) is a treatment process that can reduce RO concentrate volume while augmenting the potable water supply. MD is also a dual barrier approach for virus removal as it operates at a high temperature and permeates only the vapor phase through the membrane interface. The effects of temperature on viable virus concentration and membrane rejection of viruses in MD are investigated in this study using two nonenveloped phages frequently used as enteric virus surrogates (MS2 and PhiX174) and an enveloped pathogenic virus (HCoV-229E). At typical MD operating temperatures (greater than 65 °C), viable concentrations of all three viruses were reduced by thermal inactivation by more than 6-log 10 for MS2 and PhiX174 and more than 3-log 10 for HCoV-229E. Also, membrane rejection was greater than 6-log 10 for MS2 and PhiX174 and greater than 2.5-log 10 for HCoV-229E.

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Reverse osmosis concentrate: An essential link for closing loop of municipal wastewater reclamation towards urban sustainability

Cited by 24 publications

References 72 publications

Reuse-focused selection of appropriate technologies for municipal wastewater treatment: a multi-criteria approach

Reuse-focused selection of appropriate technologies for municipal wastewater treatment: a multi-criteria approach

Treatment of Poultry Slaughterhouse Wastewater with Membrane Technologies: A Review

Membrane Distillation Provides a Dual Barrier for Coronavirus and Bacteriophage Removal

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