Green recovery of hazardous acetonitrile from high-salt chemical wastewater by pervaporation

Wang, Yong; Xiang, Mei; Ma, Tianshu; Xue, Changjing; Wu, Meidan; Ji, Min; Li, Yuegang

doi:10.1016/j.jclepro.2018.06.239

Cited by 46 publications

(18 citation statements)

References 22 publications

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“…With the rapid development of the petrochemical industry, ever more wastewater is being produced. The highly saline wastewater produced in petrochemical industrial fields is toxic and difficult-to-degrade industrial wastewater with a salt concentration greater than 1 wt.%, including a certain amount of soluble inorganic salt ions, along with lesser amounts of insoluble impurities and hard-to-remove salts [1,2]. The direct discharge of highly saline wastewater not only causes serious pollution to the environment, but also represents a waste of water resources and salt resources [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Review on Forward Osmosis Water Treatment: Recent Advances and Prospects of Membranes and Draw Solutes

Zhu

Chen

et al. 2022

IJERPH

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Forward osmosis (FO) is an evolving membrane separation technology for water treatment and reclamation. However, FO water treatment technology is limited by factors such as concentration polarization, membrane fouling, and reverse solute flux. Therefore, it is of a great importance to prepare an efficient high-density porous membrane and to select an appropriate draw solute to reduce concentration polarization, membrane fouling, and reverse solute flux. This review aims to present a thorough evaluation of the advancement of different draw solutes and membranes with their effects on FO performance. NaCl is still widely used in a large number of studies, and several general draw solutes, such as organic-based and inorganic-based, are selected based on their osmotic pressure and water solubility. The selection criteria for reusable solutes, such as heat-recovered gaseous draw, magnetic field-recovered MNPs, and electrically or thermally-responsive hydrogel are primarily based on their industrial efficiency and energy requirements. CA membranes are resistant to chlorine degradation and are hydrophilic, while TFC/TFN exhibit a high inhibition of bio-adhesion and hydrolysis. AQPs are emerging membranes, due to proteins with complete retention capacity. Moreover, the development of the hybrid system combining FO with other energy or water treatment technologies is crucial to the sustainability of FO.

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Section: Introductionmentioning

confidence: 99%

A Comprehensive Review on Forward Osmosis Water Treatment: Recent Advances and Prospects of Membranes and Draw Solutes

Zhu

Chen

et al. 2022

IJERPH

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“…PV is a novel and efficient membrane-based separation process that can be used for alcohol dehydration because of its low cost, ease of operation and it occupies less space [ 8 , 9 , 10 ]. The separation process is governed by solution-diffusion theory for mass transfer through the membranes.…”

Section: Introductionmentioning

confidence: 99%

Vacuum-Assisted Interfacial Polymerization Technique for Enhanced Pervaporation Separation Performance of Thin-Film Composite Membranes

et al. 2022

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In this work, thin-film composite polyamide membranes were fabricated using triethylenetetramine (TETA) and trimesoyl chloride (TMC) following the vacuum-assisted interfacial polymerization (VAIP) method for the pervaporation (PV) dehydration of aqueous isopropanol (IPA) solution. The physical and chemical properties as well as separation performance of the TFCVAIP membranes were compared with the membrane prepared using the traditional interfacial polymerization (TIP) technique (TFCTIP). Characterization results showed that the TFCVAIP membrane had a higher crosslinking degree, higher surface roughness, and denser structure than the TFCTIP membrane. As a result, the TFCVAIP membrane exhibited a higher separation performance in 70 wt.% aqueous IPA solution at 25 °C with permeation flux of 1504 ± 169 g∙m−2∙h−1, water concentration in permeate of 99.26 ± 0.53 wt%, and separation factor of 314 (five times higher than TFCTIP). Moreover, the optimization of IP parameters, such as variation of TETA and TMC concentrations as well as polymerization time for the TFCVAIP membrane, was carried out. The optimum condition in fabricating the TFCVAIP membrane was 0.05 wt.% TETA, 0.1 wt% TMC, and 60 s polymerization time.

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“…These properties make pervaporation a promising method to treat wastewater with multiple components and obtain fresh water. Recently, wastewater treatment by pervaporation has been widely studied, aiming to remove or recover organic compounds (Aliabadi et al 2011(Aliabadi et al , 2012Cao et al 2021;García et al 2013;Kujawa et al 2015;Li et al 2018;Mei, 2020;Toth and Mizsey 2015;Wang et al 2018;Wu et al 2016;Yi and Wan 2017;Zhang et al 2016;Zhao and Shi 2009), sulfuric acid (Cui et al 2020;Liu et al 2021), ammonia (Yang, 2014) and heavy metals (Baysak 2021;Nigiz 2019). Baysak (Baysak 2021) fabricated polyvinyl alcohol/NaY zeolite membranes to recover Cr from wastewater by pervaporation, and results showed that the membrane could effectively reject Cr(VI).…”

Section: Introductionmentioning

confidence: 99%

Laminated graphene oxide membrane for recovery of mercury-containing wastewater by pervaporation

Wang

Qin

et al. 2021

Appl Water Sci

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Mercury (Hg) is a toxic heavy metal contaminant and has very harmful effects for human health. In this work, Hg-containing wastewater with Hg concentration of 6.36 ppb and 9.4 ppb were recovered with polyethylenimine (PEI) cross-linked graphene oxide (GO) layered membrane (c-GO-PEI) by pervaporation. The influence of ionic type, the concentration of Hg and the feed temperature were investigated. The c-GO-PEI exhibited not only high rejection for salts (> 99.97%), Hg (77.5–100%) and non-purgeable organic carbon (NPOC) (67.3–90.8%) but also high flux (30.30 kg·m−2·h−1) to treat with the wastewater. In addition, the flux could be largely recovered after simple washing, indicating the excellent antifouling property of the membrane.

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Green recovery of hazardous acetonitrile from high-salt chemical wastewater by pervaporation

Cited by 46 publications

References 22 publications

A Comprehensive Review on Forward Osmosis Water Treatment: Recent Advances and Prospects of Membranes and Draw Solutes

A Comprehensive Review on Forward Osmosis Water Treatment: Recent Advances and Prospects of Membranes and Draw Solutes

Vacuum-Assisted Interfacial Polymerization Technique for Enhanced Pervaporation Separation Performance of Thin-Film Composite Membranes

Laminated graphene oxide membrane for recovery of mercury-containing wastewater by pervaporation

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