Characteristics and influencing factors of organic fouling in forward osmosis operation for wastewater applications: A comprehensive review

Ly, Quang Viet; Hu, Yunxia; Li, Jianxin; Cho, Jinwoo; Hur, Jin

doi:10.1016/j.envint.2019.05.033

Cited by 81 publications

(26 citation statements)

References 154 publications

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“…Like other membrane processes, FO suffers from various forms of membrane fouling including colloidal fouling, organic fouling, inorganic scaling and biofouling [66,67]. Although the fouling in FO is less compacted and more reversible which allow the membrane cleaning and regeneration easier and more cost-effective than the pressure driven counterparts, the long-term fouling resistance of an FO membrane is still an important key in dictating the sustainability of the membrane and it process.…”

Section: Challenges Of Forward Osmosis Processesmentioning

confidence: 99%

Recent Progresses of Forward Osmosis Membranes Formulation and Design for Wastewater Treatment

Goh

Ismail

et al. 2019

Water

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Production of potable water or reclaimed water with higher quality are in demand to address water scarcity issues as well as to meet the expectation of stringent water quality standards. Forward osmosis (FO) provides a highly promising platform for energy-efficient membrane-based separation technology. This emerging technology has been recognized as a potential and cost-competitive alternative for many conventional wastewater treatment technologies. Motivated by its advantages over existing wastewater treatment technologies, the interest of applying FO technology for wastewater treatment has increased significantly in recent years. This article focuses on the recent developments and innovations in FO for wastewater treatment. An overview of the potential of FO in various wastewater treatment application will be first presented. The contemporary strategies used in membrane designs and fabrications as well as the efforts made to address membrane fouling are comprehensively reviewed. Finally, the challenges and future outlook of FO for wastewater treatment are highlighted.

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Section: Challenges Of Forward Osmosis Processesmentioning

confidence: 99%

Recent Progresses of Forward Osmosis Membranes Formulation and Design for Wastewater Treatment

Goh

Ismail

et al. 2019

Water

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“…Nanoparticle dissolution and their fast uncontrolled ionic release cause them to be used-up shortly. This phenomenon is responsible for the lack of the reuse of powdered nanoparticles for water purification [ 7 ]. Powdered nanoparticles in solution are also difficult to separate especially when they have undergone dissolution [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Development and Characterization of Clay–Nanocomposites for Water Purification

et al. 2020

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In this work we propose a facile method of preparing cost-effective clay-metaloxide/metal (CuO/Ag and ZnO/Ag) composite pellets for an efficient water purification technique. Clay, with intrinsic antibacterial activity, served as a membrane support for different metaloxide/Ag nanoparticles (NPs) concentrations (2.5, 5 and 10 wt.%), as the active fillers. The effect of time (24 and 48 h) on the bactericidal activity of these pellets was also monitored. The clay–nanocomposite pellets were characterized using: X-ray diffraction, X-ray fluorescence, scanning electron microscopy, transmission electron microscopy, ultraviolet–visible (UV–Vis) spectrophotometry and nitrogen desorption analysis. The antibacterial activity performance was tested using E. coli and S. aureus strains of ATCC25922 and ATCC25923, respectively, in two aqueous media (nutrient broth and nutrient-free) by the colony-forming unit method. The results showed that the clay-CuO/Ag composite with a bandgap (1.24 eV) exhibited overall best performance under all conditions and time factors of ~100% efficiency in nutrient-free medium for all concentrations and times and 20–40% efficiency in nutrient broth for 24 h. The clay-ZnO/Ag with a bandgap of 2.88 eV showed no bactericidal activity in both media, except for that with 10 wt.% ZnO/Ag which showed 100% efficiency in nutrient-free medium after 24 h. All the synthesized composites showed 100% bactericidal efficiency in nutrient free medium after 48 h. These results indicate that, the clay/metaloxide/Ag could serve as efficient water purification technique, with a potential for large-scale commercialization.

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“…Forward osmosis was proposed for treating feed waters with high organic content such as landfill leachate, oil and gas wastewater, shale gas wastewater, textile wastewater, and industrial wastewater [83][84][85][86][87]. However, the performance of the FO process is severely hindered by membrane fouling, particularly by organic foulants in the raw wastewater or wastewater effluent [88].…”

Section: Characteristics Of Organic Foulantsmentioning

confidence: 99%

Organic Fouling in Forward Osmosis: A Comprehensive Review

Yadav

Ibrar

Bakly

et al. 2020

Water

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Organic fouling in the forward osmosis process is complex and influenced by different parameters in the forward osmosis such as type of feed and draw solution, operating conditions, and type of membrane. In this article, we reviewed organic fouling in the forward osmosis by focusing on wastewater treatment applications. Model organic foulants used in the forward osmosis literature were highlighted, which were followed by the characteristics of organic foulants when real wastewater was used as feed solution. The various physical and chemical cleaning protocols for the organic fouled membrane are also discussed. The study also highlighted the effective pre-treatment strategies that are effective in reducing the impact of organic fouling on the forward osmosis (FO) membrane. The efficiency of cleaning methods for the removal of organic fouling in the FO process was investigated, including recommendations on future cleaning technologies such as Ultraviolet and Ultrasound. Generally, a combination of physical and chemical cleaning is the best for restoring the water flux in the FO process.

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Characteristics and influencing factors of organic fouling in forward osmosis operation for wastewater applications: A comprehensive review

Cited by 81 publications

References 154 publications

Recent Progresses of Forward Osmosis Membranes Formulation and Design for Wastewater Treatment

Recent Progresses of Forward Osmosis Membranes Formulation and Design for Wastewater Treatment

Development and Characterization of Clay–Nanocomposites for Water Purification

Organic Fouling in Forward Osmosis: A Comprehensive Review

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