Effect of operating parameters on removal of boron from wastewater containing high boron concentration by vacuum assisted air gap membrane distillation

Eryıldız, Bahriye; Yüksekdağ, Ayşe; Korkut, Sevde; Zeytuncu, Bihter; Paşaoğlu, Mehmet Emin; Koyuncu, İsmail

doi:10.1016/j.jwpe.2020.101579

Cited by 16 publications

(10 citation statements)

References 39 publications

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“…Similarly, the durability (mechanical stability) of MD membranes is critically important for operation at a long period. PVDF/rGO membranes fabricated by Eryildiz et al 85 also exhibited high mechanical stability and improved water permeability compared to pure PVDF, In another study, Unal et al, 86 fabricated thermally treated hydrophobic nanofibrous PVDF MD membranes for boron removal from geothermal water. The author reported that the heat treatment (100 °C for1h) resulted in improved mechanical strength due to melting and sticking of PVDF nanofibers at different connected points.…”

Section: Air Gap Membrane Distillation (Agmd)mentioning

confidence: 99%

Advanced Membrane Technology to Remove Boron from Water and Wastewater: A Comprehensive Study

Al-Ejji,

Ponnamma,

Zadeh

et al. 2023

ACS Appl. Polym. Mater.

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The rise in boron demand for global industries causes the anthropogenic release of this element to water streams, deteriorating water quality and challenging ecological sustainability. Stringent water quality standards are necessary to address boron contamination, often resolved by boron absorbing materials, ion exchange resins, and membrane filtration. Low energy consumption, simplicity in the process, highly pure filtrated water, and adaptive flexibility offered by the membrane processes concentrate the researcher's interest in this technology for selective boron removal. This review focuses on the mechanism and chemistry of specific membrane processes in eliminating the pollutant from wastewater. Different types of membrane processes such as forward osmosis, reverse osmosis, distillation, nanofiltration, dialysis, and hybrid structures are explored in their nature and properties with respect to boron removing efficiency. A comprehensive view is provided by summarizing the different membranebased process architectures with the advantages and weak points of each type. The possible industrial scalability of the processes in terms of durability and efficiency is discussed throughout. Ultimately, the future technological influence and the different modern strategies that can be adopted for membrane fabrication and, thereby, boron removal are mentioned.

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Section: Air Gap Membrane Distillation (Agmd)mentioning

confidence: 99%

Advanced Membrane Technology to Remove Boron from Water and Wastewater: A Comprehensive Study

Al-Ejji,

Ponnamma,

Zadeh

et al. 2023

ACS Appl. Polym. Mater.

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“…As shown in Figure 2 , there are four known and well-studied membrane distillation configurations: DCMD, AGMD, SGMD and VMD [ 31 , 32 , 33 , 34 ]. There are also known three supplemental configurations: liquid or water gap membrane distillation (LGMD/WGMD), thermostatic sweeping gas membrane distillation (TSGMD) and vacuum-assisted air gap membrane distillation (VA-AGMD) [ 35 , 36 , 37 ].…”

Section: Membrane Distillation Configurationsmentioning

confidence: 99%

Recent Progress in the Membrane Distillation and Impact of Track-Etched Membranes

et al. 2021

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Membrane distillation (MD) is a rapidly developing field of research and finds applications in desalination of water, purification from nonvolatile substances, and concentration of various solutions. This review presents data from recent studies on the MD process, MD configuration, the type of membranes and membrane hydrophobization. Particular importance has been placed on the methods of hydrophobization and the use of track-etched membranes (TeMs) in the MD process. Hydrophobic TeMs based on poly(ethylene terephthalate) (PET), poly(vinylidene fluoride) (PVDF) and polycarbonate (PC) have been applied in the purification of water from salts and pesticides, as well as in the concentration of low-level liquid radioactive waste (LLLRW). Such membranes are characterized by a narrow pore size distribution, precise values of the number of pores per unit area and narrow thickness. These properties of membranes allow them to be used for more accurate water purification and as model membranes used to test theoretical models (for instance LEP prediction).

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“…Partial vacuum can also be applied in the airgap to extract, and such configuration is called vacuum assisted AGMD (V-AGMD). This configuration is designed to remove the non-condensable gases in the feed solution that causes additional vapor transfer resistance [11,12]. AGMD is advantageous over DCMD in the separation of high volatile organic compounds from water as the permeate is not in contact with the distillate surface of the membrane and hence the chances of membrane wetting are low.…”

Section: Air-gap Membrane Distillation (Agmd)mentioning

confidence: 99%

Membrane Distillation: Recent Configurations, Membrane Surface Engineering, and Applications

Parani

Oluwafemi

2021

Membranes

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Membrane distillation (MD) is a developing membrane separation technology for water treatment that involves a vapor transport driven by the vapor pressure gradient across the hydrophobic membrane. MD has gained wide attention in the last decade for various separation applications, including the separation of salts, toxic heavy metals, oil, and organic compounds from aqueous solutions. Compared with other conventional separation technologies such as reverse osmosis, nanofiltration, or thermal distillation, MD is very attractive due to mild operating conditions such as low temperature and atmospheric pressure, and 100% theoretical salt rejection. In this review, membrane distillation’s principles, recent MD configurations with their advantages and limitations, membrane materials, fabrication of membranes, and their surface engineering for enhanced hydrophobicity are reviewed. Moreover, different types of membrane fouling and their control methods are discussed. The various applications of standalone MD and hybrid MD configurations reported in the literature are detailed. Furthermore, studies on the MD-based pilot plants installed around the world are covered. The review also highlights challenges in MD performance and future directions.

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Effect of operating parameters on removal of boron from wastewater containing high boron concentration by vacuum assisted air gap membrane distillation

Cited by 16 publications

References 39 publications

Advanced Membrane Technology to Remove Boron from Water and Wastewater: A Comprehensive Study

Advanced Membrane Technology to Remove Boron from Water and Wastewater: A Comprehensive Study

Recent Progress in the Membrane Distillation and Impact of Track-Etched Membranes

Membrane Distillation: Recent Configurations, Membrane Surface Engineering, and Applications

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