Mass transfer characteristics for VOC permeation through flat sheet porous and composite membranes: The impact of the different membrane layers on the overall membrane resistance

Dingemans, Maarten; Dewulf, Jo; Braeckman, Leentje; Langenhove, Herman Van; Friess, Karel; Hynek, Vladimı́r; Šı́pek, Milan

doi:10.1016/j.memsci.2008.05.043

Cited by 24 publications

(10 citation statements)

References 18 publications

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“…6. Waste gas was pumped into the BTF and passed through the medium bed, n-hexane in the waste gas transferred from the air phase to the water phase and then the biofilm phase (Dingemans et al, 2008). The presence of saponins made the microorganisms in the biofilm absorb and biodegrade the n-hexane more easily.…”

Section: Mechanisms Of Btf For N-hexane Removalmentioning

confidence: 99%

Effect of saponins on n-hexane removal in biotrickling filters

Yang

Chen

et al. 2015

Bioresource Technology

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Section: Mechanisms Of Btf For N-hexane Removalmentioning

confidence: 99%

Effect of saponins on n-hexane removal in biotrickling filters

Yang

Chen

et al. 2015

Bioresource Technology

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“…Jie tvirčiausi iš visų sintetinių pluoštų. Naudojami audiniams gaminti, derinant su vilna ir kitais sintetiniais pluoštais (Dingemansa et al 2008).…”

Section: Tyrimų Metodikaunclassified

Investigation of Efficiency of Air Cleaning From Acetone Using a Segmental Construction Biofilter / Acetono Valymo Iš Oro Efektyvumo Tyrimai, Taikant Segmentinės Konstrukcijos Biofiltrą

Bacevičius

Zagorskis

2015

Mokslas – Lietuvos Ateitis

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Santrauka. Lakieji organiniai junginiai, tokie kaip acetonas, turi tiesioginę įtaką klimato kaitai, ozono kiekio ore mažėjimui, šiltnamio efekto susidarymui. Vienas iš populiariausių LOJ valymo iš oro metodų yra biologinis oro valymas. Eksperimentiniai tyrimai atlikti siekiant nustatyti naujos konstrukcijos biofiltro, prikrauto polipropileno plokštelių segmentų, efektyvumą. Tyrimų metu buvo nustatinėjamas segmentinės konstrukcijos oro valymo biofiltro efektyvumas, esant skirtingoms pradinėms teršalo koncentracijoms. Skirtingos teršalo koncentracijos gautos acetoną skiedžiant vandeniu. Bandymų metu nustatytas acetono garų valymo iš biofiltro oro efektyvumas, jo kaita esant skirtingoms garų koncentracijoms. Remiantis bandymų rezultatais, didžiausias nustatytas biofiltro oro valymo efektyvumas siekė 93 %. Tyrimų metu nustatyta, kad didinant leidžiamo teršalo koncentraciją, įrenginio valymo efektyvumas mažėja. Padidinus į biofiltrą tiekiamų acetono garų koncentraciją nuo 232 iki 701 mg/m 3 , valymo efektyvumas sumažėjo nuo 92,8 iki 82,3 %. Kadangi mikroorganizmai nespėja oksiduoti organinių junginių, filtras geriau veikia esant mažesnėms pradinėms teršalų koncentracijoms. AbstractVolatile organic compounds, e. g. acetone, have a direct impact on climate change, decrease of ozone in the air, and on the growth of greenhouse effect. One of the most popular air purifying methods from VOC is a biological air cleaning. Experimental

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“…For simplicity and expediency, batch test methodologies are preferred for measuring partition and diffusion coefficients for GMs composed of a single polymer (Park et al 2012a). However, coextruded GMs are composites composed of multiple polymers, and batch testing of the composite GM may not be appropriate for the determination of transport parameters because solute migration through the multilayer system is not represented properly (Dingemans et al 2008;McWatters and Rowe 2010;Eun et al 2014Eun et al , 2017.…”

Section: Introductionmentioning

confidence: 99%

Equivalent Transport Parameters for Volatile Organic Compounds in Coextruded Geomembrane–Containing Ethylene-Vinyl Alcohol

Eun

Tinjum

Benson

et al. 2018

J. Geotech. Geoenviron. Eng.

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A method to estimate the equivalent diffusion coefficient and partition coefficient of a coextruded ethylene-vinyl alcohol (EVOH) geomembrane (GM) is presented. The method is based on the weighted harmonic mean of diffusion coefficients of each layer and the partition coefficient of the outer layers. The method was evaluated using experimental data obtained with five volatile organic compounds (VOCs) typically found in landfill leachate [methylene chloride (MC), methyl tertiary butyl ether (MTBE), trichloroethylene (TCE), toluene (TOL), and chlorobenzene (CB)] and a coextruded GM composed of outer layers of low-density polyethylene (LLDPE) or high-density polyethylene (HDPE), an adhesive tie layer (maleic anhydride), and a core of EVOH. Equivalent diffusion coefficients computed with the recommended equation were found to be no different statistically from equivalent diffusion coefficients measured using a modified double-compartment apparatus. VOC transport through a composite liner using a coextruded EVOH GM was predicted using a finite-difference model with the equivalent transport parameters as input. Good agreement was obtained between predictions from the model and measured concentrations from a column test simulating a composite liner.

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Mass transfer characteristics for VOC permeation through flat sheet porous and composite membranes: The impact of the different membrane layers on the overall membrane resistance

Cited by 24 publications

References 18 publications

Effect of saponins on n-hexane removal in biotrickling filters

Effect of saponins on n-hexane removal in biotrickling filters

Investigation of Efficiency of Air Cleaning From Acetone Using a Segmental Construction Biofilter / Acetono Valymo Iš Oro Efektyvumo Tyrimai, Taikant Segmentinės Konstrukcijos Biofiltrą

Equivalent Transport Parameters for Volatile Organic Compounds in Coextruded Geomembrane–Containing Ethylene-Vinyl Alcohol

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