Transport mechanisms behind enhanced solute rejection in forward osmosis compared to reverse osmosis mode

Sanahuja-Embuena, Victoria; Frauholz, Jan; Oruc, Tayfun; Trzaskuś, Krzysztof; Hélix-Nielsen, Claus

doi:10.1016/j.memsci.2021.119561

Cited by 15 publications

(2 citation statements)

References 37 publications

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“…As previously commented, the absence of applied hydraulic pressure could reduce operational and energy costs and provide a better fouling control than high-pressure-driven membrane processes due to physically reversible fouling. There are several recent studies that corroborated the feasibility of this membrane process in the elimination of contaminants in water [ 8 , 93 , 100 , 154 , 155 , 156 , 157 , 158 , 159 , 160 , 161 , 162 , 163 , 164 , 165 , 166 , 167 , 168 , 169 , 170 , 171 , 172 , 173 , 174 , 175 ]. In these studies, membranes of different configuration, different materials, and different contaminants were used, all of which had good contaminant removal in common.…”

Section: Wastewater Contaminationmentioning

confidence: 92%

Forward Osmosis Application for the Removal of Emerging Contaminants from Municipal Wastewater: A Review

et al. 2023

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Forward osmosis (FO) has attracted special attention in water and wastewater treatment due to its role in addressing the challenges of water scarcity and contamination. The presence of emerging contaminants in water sources raises concerns regarding their environmental and public health impacts. Conventional wastewater treatment methods cannot effectively remove these contaminants; thus, innovative approaches are required. FO membranes offer a promising solution for wastewater treatment and removal of the contaminants in wastewater. Several factors influence the performance of FO processes, including concentration polarization, membrane fouling, draw solute selection, and reverse salt flux. Therefore, understanding and optimizing these factors are crucial aspects for improving the efficiency and sustainability of the FO process. This review stresses the need for research to explore the potential and challenges of FO membranes to meet municipal wastewater treatment requirements, to optimize the process, to reduce energy consumption, and to promote scalability for potential industrial applications. In conclusion, FO shows promising performance for wastewater treatment, dealing with emerging pollutants and contributing to sustainable practices. By improving the FO process and addressing its challenges, we could contribute to improve the availability of water resources amid the global water scarcity concerns, as well as contribute to the circular economy.

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Section: Wastewater Contaminationmentioning

confidence: 92%

Forward Osmosis Application for the Removal of Emerging Contaminants from Municipal Wastewater: A Review

et al. 2023

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“…Forward Osmosis (FO) is a membrane technology of growing interest for resource recovery from municipal wastewater. The high contaminant rejection and lower fouling of the forward osmosis membrane compared to pressure-driven membrane processes such as reverse osmosis, nanofiltration, and ultrafiltration make it a promising alternative for pre-concentrating municipal wastewater [ 5 , 6 , 7 , 8 , 9 , 10 , 11 ]. On the other hand, reverse osmosis technologies are now a fundamental part of the process of procurement of drinking water.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Forward Osmosis and Low-Pressure Reverse Osmosis with a Tubular Membrane for the Concentration of Municipal Wastewater and the Production of Biogas

et al. 2023

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Currently, freshwater scarcity is one of the main issues that the world population has to face. To address this issue, new wastewater treatment technologies have been developed such as membrane processes. Among them, due to the energy disadvantages of pressure-driven membrane processes, Forward Osmosis (FO) and Low-Pressure Reverse Osmosis (LPRO) have been introduced as promising alternatives. In this study, the behavior of a 2.3 m2 tubular membrane TFO-D90 when working with municipal wastewater has been studied. Its performances have been evaluated and compared in two operating modes such as FO and LPRO. Parameters such as fouling, flow rates, water flux, draw solution concentration, organic matter concentration, as well as its recovery have been studied. In addition, the biogas production capacity has been evaluated with the concentrated municipal wastewater obtained from each process. The results of this study indicate that the membrane can work in both processes (FO and LPRO) but, from the energy and productivity point of view, FO is considered more appropriate mainly due to its lower fouling level. This research may offer a new point of view on low-energy and energy recovery wastewater treatment and the applicability of FO and LPRO for wastewater concentration.

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A novel composite membrane of fly ash/polyurethane and its performance in organic wastewater treatment

et al. 2022

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Transport mechanisms behind enhanced solute rejection in forward osmosis compared to reverse osmosis mode

Cited by 15 publications

References 37 publications

Forward Osmosis Application for the Removal of Emerging Contaminants from Municipal Wastewater: A Review

Forward Osmosis Application for the Removal of Emerging Contaminants from Municipal Wastewater: A Review

Evaluation of Forward Osmosis and Low-Pressure Reverse Osmosis with a Tubular Membrane for the Concentration of Municipal Wastewater and the Production of Biogas

A novel composite membrane of fly ash/polyurethane and its performance in organic wastewater treatment

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