Pervaporation separation of butyric acid from aqueous and anaerobic digestion (AD) solutions using PEBA based composite membranes

Choudhari, Santosh K.; Cerrone, Federico; Woods, Trevor; Joyce, Kieran; O'Flaherty, Vincent; Connor, Kevin O’; Babu, Ramesh

doi:10.1016/j.jiec.2014.08.010

Cited by 60 publications

(29 citation statements)

References 46 publications

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“…For example, Choudari et al (Choudhari et al, 2014) use pervaporation with polyether block amide based composite membranes to remove butyric acid of concentration 5,950 mg·l -1 from 2 l of anaerobic digestion broths. In that study, a total membrane area of 0.01591 m 2 was reported to be able to remove up to 120 g·m -2 ·hr -1 of butyric acid, which equates to a 23% reduction in butyric acid concentration in 60 minutes as compared to a maximum of over 99% in this work, which represents a fourfold increase in performance.…”

Section: Comparing Percentage Reduction In Vfa Concentrationsmentioning

confidence: 99%

Removal and recovery of inhibitory volatile fatty acids from mixed acid fermentations by conventional electrodialysis

Jones

Massanet‐Nicolau

Guwy

et al. 2015

Bioresource Technology

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Section: Comparing Percentage Reduction In Vfa Concentrationsmentioning

confidence: 99%

Removal and recovery of inhibitory volatile fatty acids from mixed acid fermentations by conventional electrodialysis

Jones

Massanet‐Nicolau

Guwy

et al. 2015

Bioresource Technology

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“…As discussed before, the revenues/cost from the organic acids can be improved as the scientific effort could be (re)-directed into finding more environmentally friendly processes and lowering the cost of organic acid separation-purification [38,59]. In this regard, several techniques has been investigated for the recovery of organic acids from fermentation broths, including adsorption [60], solvent extraction [61], membrane-based solvent extraction [62], electro dialysis [63,64], and membrane separation [65].…”

Section: Economic Assessment Resultsmentioning

confidence: 99%

Increasing Profits in Food Waste Biorefinery—A Techno-Economic Analysis

Bastidas‐Oyanedel

Schmidt

2018

Energies

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The present manuscript highlights the economic profit increase when combining organic waste anaerobic digestion with other mixed culture anaerobic fermentation technologies, e.g., lactic acid fermentation and dark fermentation. Here we consider the conversion of 50 tonnes/day of food waste into methane, power generation (from CHP of biomethane), lactic acid, polylactic acid, hydrogen, acetic acid and butyric acid. The economic assessment shows that the basic alternative, i.e., anaerobic digestion with methane selling to the grid, generates 19 USD/t_VS (3 USD/t_foodwaste) of profit. The highest profit is obtained by dark fermentation with separation and purification of acetic and butyric acids, i.e., 296 USD/t_VS (47 USD/t_foodwaste). The only alternative that presented losses is the power generation alternative, needing tipping fees and/or subsidy of 176 USD/t_VS (29 USD/t_foodwaste). The rest of the alternatives generate profit. From the return on investment (ROI) and payback time, the best scenario is the production of polylactic acid, with 98% ROI, and 7.8 years payback time. Production of butyric acid ROI and payback time was 74% and 9.1 years.

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“…. As observed, the water contact angle of the pure PEBA membrane is 73.26° that is almost similar to the reported value in the literature . According to Fig.…”

Section: Resultsmentioning

confidence: 99%

PEBA/PVDF blend pervaporation membranes: preparation and performance

Soloukipour

Saljoughi

Mousavi

et al. 2016

Polymers for Advanced Techs

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In the present research, novel polyether block amide (PEBA)/polyvinyldene fluoride (PVDF) blend pervaporation (PV) membranes were prepared for the removal of isopropyl alcohol (IPA) from the aqueous solution. The membranes obtained at PEBA/PVDF ratios of 100/0, 95/5, and 90/10 were characterized using scanning electron microscopy, thermogravimetric analysis, water contact angle measurement, and tensile test. Moreover, the PV performance of the membranes was assessed via separation of IPA from the aqueous solution. The blended membranes exhibited higher hydrophobicity and separation factor as well as lower permeability in comparison with the pure PEBA membrane. The blended membrane that was prepared at PEBA/PVDF ratio of 95/5 was found as the optimum membrane providing PV separation index of 3171 that appeared to be the maximum value. Copyright © 2016 John Wiley & Sons, Ltd.

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Pervaporation separation of butyric acid from aqueous and anaerobic digestion (AD) solutions using PEBA based composite membranes

Cited by 60 publications

References 46 publications

Removal and recovery of inhibitory volatile fatty acids from mixed acid fermentations by conventional electrodialysis

Removal and recovery of inhibitory volatile fatty acids from mixed acid fermentations by conventional electrodialysis

Increasing Profits in Food Waste Biorefinery—A Techno-Economic Analysis

PEBA/PVDF blend pervaporation membranes: preparation and performance

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