Pilot-scale evaluation of FO-RO osmotic dilution process for treating wastewater from coal-fired power plant integrated with seawater desalination

Choi, Byeong Gyu; Zhan, Min; Shin, Kyung-Yong; Lee, Sanghak; Hong, Seungkwan

doi:10.1016/j.memsci.2017.06.036

Cited by 83 publications

(20 citation statements)

References 42 publications

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“…In Salehi's study [45], zeolite nanoparticles were blended into polyethersulfone (PES) support layer and the water flux of the resulting membrane was 43% higher than the control TFC membrane (1.93 L/m 2 h bar) with salt rejection recorded at 94.7%. Many other nanomaterials have also been used in blending methods to modify FO membranes, such as graphene oxide (GO), carbon nanotube [46], titanium dioxide [47], and silica [35]. These studies confirmed that physical modification can effectively improve hydrophilicity and porosity of membrane which leads to higher water flux without reducing rejection.…”

Section: Modifications On Fo Membranesmentioning

confidence: 89%

“…The diluted DS was dewatered through NF with a NaCl rejection of 98.5%. In the FO + RO hybrid process for coal-fired power plant wastewater treatment and reuse, seawater after UF was used as DS [46]. The average water flux of the pilot FO process was 10.6 ± 0.1 LMH during the summer which was 30% greater than that during winter.…”

Section: Fo and Fo-based Hybrid Systemmentioning

confidence: 99%

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Research on Forward Osmosis Membrane Technology Still Needs Improvement in Water Recovery and Wastewater Treatment

Shi

2019

Water

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Forward osmosis (FO) has become an evolving membrane separation technology to recover water due to its strong retention capacity, sustainable membrane fouling, etc. Although a good deal of research has been extensively investigated in the past decades, major challenges still remain as follows: (1) the novel FO membrane material properties, which significantly influence the fouling of the FO membranes, the intolerance reverse solute flux (RSF), the high concentration polarization (CP), and the low permeate flux; (2) novel draw solution preparation and utilization; (3) salinity build-up in the FO system; (4) the successful implementation of the FO process. This work critically reviews the last five years’ literature in development of the novel FO membrane material, structure in modification, and preparation, including comparison and analysis on the traditional and novel draw solutes coupled with their effects on FO performance; application in wastewater treatment, especially hybrid system and integrated FO system; fouling mechanism; and cleaning strategy as discussed in the literature. The current barriers of the research results in each hotspot and the areas that can be improved are also analyzed in detail. The research hotspots in the research and development of the novel membrane materials in various countries and regions have been compared in recent years, and the work of variation in pop research hotspots in the past 10 years has been analyzed and the ideas that fill the blank gaps also have been proposed.

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Section: Modifications On Fo Membranesmentioning

confidence: 89%

Section: Fo and Fo-based Hybrid Systemmentioning

confidence: 99%

Research on Forward Osmosis Membrane Technology Still Needs Improvement in Water Recovery and Wastewater Treatment

Shi

2019

Water

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“…A pilot plant consists of integrated FO-RO utilizing wastewater from coal-fired power plant as feed solution to dilute the seawater (draw solution) has been conducted by Choi et al (2017) for 5 months of operation period [17]. The energy consumption analysis revealed that the energy consumption for desalinating the diluted seawater by FO was 23.3% less than a typical seawater desalination by RO, with specific energy consumption (SEC) for the integrated FO-RO at 2.85±0.05 kWh/m 3 and seawater RO at 3.34±0.05 kWh/m 3 .…”

Section: Fig 2 Integrated Fo-ro Process For Seawater Desalinationmentioning

confidence: 99%

Unlocking the application potential of forward osmosis through integrated/hybrid process

Ang

Mohammad

Johnson

et al. 2020

Science of The Total Environment

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Study of forward osmosis (FO) has been increasing steadily over recent years with applications mainly focusing on desalination and wastewater treatment processes. The working mechanism of FO lies in the natural movement of water between two streams with different osmotic pressure, which makes it useful in concentrating or diluting solutions. FO has rarely been 2 operated as a stand-alone process. Instead, FO processes often appear in a hybrid or integrated form where FO is combined with other treatment technologies to achieve better overall process performance and cost savings. This article aims to provide a comprehensive review on the need for hybridization/integration for FO membrane processes, with emphasis given to process enhancement, draw solution regeneration, and pretreatment for FO fouling mitigation. In general, integrated/hybrid FO processes can reduce the membrane fouling propensity; prepare the solution suitable for subsequent value-added uses and production of renewable energy; lower the costs associated with energy consumption; enhance the quality of treated water; and enable the continuous operation of FO through the regeneration of draw solution. The future potential of FO lies in the success of how it can be hybridized or integrated with other technologies to minimize its own shortcomings, while enhancing the overall performance.

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“…In some cases, people may even prefer lower-quality water from a source perceived as "natural" over higher-quality water coming from an advanced wastewater treatment facility. Reclaimed water's history as wastewater causes a psychological barrier for many people that can be hard to overcome [11,[56][57][58][59][60].…”

Section: Public Preferences and Acceptabilitymentioning

confidence: 99%

Increasing Trends Towards Drinking Water Reclamation from Treated Wastewater

Ghernaout¹

2018

WJAC

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All around the world, water supplies are coming under increasing pressure as population growth, climate change, pollution, and changes in land use affect water quantity and quality. To address existing and anticipated water shortages, many communities are working to increase water conservation and are seeking alternative sources of water. Water reuse-the use of treated wastewater, or "reclaimed" water, for beneficial purposes such as drinking, irrigation, or industrial uses-is one option that has helped some communities significantly expand their water supplies. This review summarizes the main findings of the literature. The paper provides an overview of the options and outlook for water reuse in the world, discusses water treatment technologies and potential uses of reclaimed water, and presents a new analysis that compares the risks of drinking reclaimed water to those of drinking water from traditional sources. Involved technologies in wastewater treatment plant for drinking water purpose should be furnished with highly performant methods such as membrane processes (nanofiltration, reverse osmosis) and advanced oxidation processes (H 2 O 2 , O 3 , etc.). Treating efficiently wastewater at its source is the best "barrage" against pollutants diffusion through the nature as chemicals of emerging concern are detected in tap water.

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Pilot-scale evaluation of FO-RO osmotic dilution process for treating wastewater from coal-fired power plant integrated with seawater desalination

Cited by 83 publications

References 42 publications

Research on Forward Osmosis Membrane Technology Still Needs Improvement in Water Recovery and Wastewater Treatment

Research on Forward Osmosis Membrane Technology Still Needs Improvement in Water Recovery and Wastewater Treatment

Unlocking the application potential of forward osmosis through integrated/hybrid process

Increasing Trends Towards Drinking Water Reclamation from Treated Wastewater

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