Removal of phenolic contaminants from water by pervaporation

Cao, Xiaofeng; Wang, Kean; Feng, Xinbin

doi:10.1016/j.memsci.2020.119043

Cited by 43 publications

(9 citation statements)

References 45 publications

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“…Polyether block amide (PEBA) is a kind of polymer material composed of regular hard polyamide chain segments and soft polyether chain segments, which has a high affinity with organic compounds. 25 Hao et al used PEBA-2533 as a monomer material for the membrane separation of phenol and water. PEBA had excellent osmotic selectivity for phenol because it can interact with aromatic compounds through π-bond and preferentially adsorb aromatic compounds.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of PEBA/HZIF-8 Pervaporation Membranes for High Efficiency Phenol Recovery

et al. 2022

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Phenol and its chemical derivatives serve as essential chemical materials are indispensable for the synthesis of many kinds of polymers. However, they are highly toxic, carcinogenic, difficult to be degraded biologically, and often found in aqueous effluents. Recovery of hazardous phenol from wastewater remains a daunting challenge. Herein, we prepared a hybrid membrane containing polyether block amide (PEBA) matrix and HZIF-8 fillers. To improve the compatibility between ZIF-8 and PEBA, ZIF-8 was modified by using polystyrene (PS) as a template to prepare porous HZIF-8. ZIF-8, composed of zinc nodes linked by the imidazole ring skeleton, is a kind of inorganic material with high hydrothermal stability, ordered pores, and hydrophobic microporous surfaces, which has a wide range of applications in membrane separation. The separation performance of the PEBA/HZIF-8 based membranes for phenol/water is improved due to the presence of PS on the surface of HZIF-8 and the imidazole ring skeleton in ZIF-8, which enhance the π–π interaction between HZIF-8 and phenol molecules. The effects of HZIF-8 content, feed phenol concentration, and feed temperature on the pervaporation performance of PEBA/HZIF-8 membranes were further investigated. The results showed that the pervaporation performance of the PEBA/HZIF-8-10 membrane was promising with a separation factor of 80.89 and permeate flux of 247.70 g/m 2 ·h under the feed phenol concentration of 0.2 wt % at 80 °C. In addition, the PEBA/HZIF-8-10 membrane presented excellent stability, which has great prospect for practical application in phenol recovery from waste water.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication of PEBA/HZIF-8 Pervaporation Membranes for High Efficiency Phenol Recovery

et al. 2022

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“…In the same time the wastewater plants encounter significant difficulties to address the increase of contaminants concentration and structure [2][3][4]. Among these contaminants, the organic pollutants such as phenols [5], pesticides [6], pharmaceutical [7] and dyes [8] raise special issues due to their impact on human health and aquatic life. The organic pollutants removal by conventional methods (adsorption, coagulation, filtration, microorganism and enzymes) showed important limitation due to the reluctance of these molecules [9,10].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Photocatalytic Reactors Design and Operating Parameters on the Wastewater Organic Pollutants Removal—A Mini-Review

Eneşca

2021

Catalysts

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The organic pollutants removal by conventional methods (adsorption, coagulation, filtration, microorganism and enzymes) showed important limitation due to the reluctance of these molecules. An alternative to this issue is represented by the photocatalytic technology considered as an advanced oxidation process (AOP). The photoreactors design and concepts vary based on the working regime (static or dynamic), photocatalyst morphology (powders or bulk) and volume. This mini-review aims to provide specific guidelines on the correlations between the photoreactor concept characteristics (working regime, volume and flow rate), irradiation scenarios (light spectra, irradiation period and intensity) and the photocatalytic process parameters (photocatalyst materials and dosage, pollutant type and concentration, pollutant removal efficiency and constant rate). The paper considers two main photoreactor geometries (cylindrical and rectangular) and analyses the influence of parameters optimization on the overall photocatalytic efficiency. Based on the systematic evaluation of the input data reported in the scientific papers, several perspectives regarding the photocatalytic reactors' optimization were included.

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“…(Bin et al 2019) Pervaporation is a membrane-based separation method, in which the feed solution flow through the upside of the membrane and become vapor in the downside. The membrane structure could be well-tuned to make it be capable of rejecting salts (Castro-Munoz 2020;Wang et al 2016a) and volatile components (Cao et al 2021;Ong et al 2016;Yang, 2019). Besides, low membrane fouling could be achieved by reducing the roughness and elevating the hydrophilicity of the membrane surface.…”

Section: Introductionmentioning

confidence: 99%

“…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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Removal of phenolic contaminants from water by pervaporation

Cited by 43 publications

References 45 publications

Fabrication of PEBA/HZIF-8 Pervaporation Membranes for High Efficiency Phenol Recovery

Fabrication of PEBA/HZIF-8 Pervaporation Membranes for High Efficiency Phenol Recovery

The Influence of Photocatalytic Reactors Design and Operating Parameters on the Wastewater Organic Pollutants Removal—A Mini-Review

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

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