Separation and concentration of lactic acid by electro-electrodialysis

Yi, Shuang; Lü, Yangcheng; Luo, Guangsheng

doi:10.1016/j.seppur.2007.09.004

Cited by 38 publications

(10 citation statements)

References 17 publications

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“…Several downstream processing techniques have been used to recover lactic acid from the fermentation broth, e.g., calcium lactate crystallization, ion-exchange, adsorption, esterificationdistillation/hydrolysis, membrane extraction and electro-dialysis [12][13][14][15]. Among these techniques, adsorption by activated carbon and anionic resins are suitable for fermentation broths with low concentrations of lactic acid, especially from heterolactic fermentation [16,17].…”

Section: Introductionmentioning

confidence: 99%

Adsorption Behaviour of Lactic Acid on Granular Activated Carbon and Anionic Resins: Thermodynamics, Isotherms and Kinetic Studies

et al. 2017

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Solid-liquid extraction (adsorption or ion exchange) is a promising approach for the in situ separation of organic acids from fermentation broths. In this study, a diluted concentration of lactic acid (<10 g/L) separation from a model fermentation broth by granular activated carbon (GAC) as well as weak (Reillex ® 425 or RLX425) and strong (Amberlite ® IRA-400 or AMB400) base anion exchange resins under various operating conditions was experimentally investigated. Thermodynamic analysis showed that the best lactic acid adsorption performances were obtained at a pH below the pK a value of lactic acid (i.e., 3.86) for GAC and RLX425 by physical adsorption mechanism and above the pK a value for the AMB400 resin by an ion exchange mechanism, respectively. The adsorption capacity for GAC (38.2 mg/g) was the highest, followed by AMB400 (31.2 mg/g) and RLX425 (17.2 mg/g). As per the thermodynamic analysis, the lactic acid adsorbed onto GAC and RLX425 through a physical adsorption mechanism, whereas the lactic acid adsorbed onto AMB400 with an ion exchange mechanism. The Langmuir adsorption isotherm model (R 2 > 0.96) and the pseudo-second order kinetic model (R 2~1 ) fitted better to the experimental data than the other models tested. Postulating the conditions for the real fermentation broth (pH: 5.0-6.5 and temperature: 30-80 • C), the resin AMB400 represents an ideal candidate for the extraction of lactic acid during fermentation.

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Section: Introductionmentioning

confidence: 99%

Adsorption Behaviour of Lactic Acid on Granular Activated Carbon and Anionic Resins: Thermodynamics, Isotherms and Kinetic Studies

et al. 2017

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“…Carboxilic acids esterification has been also reported to be improve separation, and reducing costs [71]. Electro-dialysis has been explored in order to increase carboxylic acid yield in dark fermentation [72][73][74], and for the separation of lactic acid from the culture broth [75]. In a complete different perspective, the production of carboxylic acids from syngas using anaerobic biofilms has been reported [76,77].…”

Section: Emerging Mixed Culture Technologiesmentioning

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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“…solvent extraction (8)(9)(10), electrodialysis (11)(12)(13), adsorption onto activated carbon (14) or molecular sieves (3), and retention onto anion exchange resins (4,6,7,(15)(16)(17)(18), each with its own limitations. The toxicity of organic solvents for the cells is an important disadvantage of solvent extraction.…”

Section: Introductionmentioning

confidence: 99%

Modelling of Batch Lactic Acid Fermentation in the Presence of Anionic Clay

Jinescu

Aruş

Pârvulescu

et al. 2014

Food. Technol. Biotechnol.

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SummaryBatch fermentation of milk inoculated with lactic acid bacteria was conducted in the presence of hydrotalcite-type anionic clay under static and ultrasonic conditions. An experimental study of the eff ect of fermentation temperature (t=38-43 °C), clay/milk ratio (R=1-7.5 g/L) and ultrasonic fi eld (ν=0 and 35 kHz) on process dynamics was performed. A mathematical model was selected to describe the fermentation process kinetics and its parameters were estimated based on experimental data. A good agreement between the experimental and simulated results was achieved. Consequently, the model can be employed to predict the dynamics of batch lactic acid fermentation with values of process variables in the studied ranges. A statistical analysis of the data based on a 2 3 factorial experiment was performed in order to express experimental and model-regressed process responses depending on t, R and ν factors.

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Separation and concentration of lactic acid by electro-electrodialysis

Cited by 38 publications

References 17 publications

Adsorption Behaviour of Lactic Acid on Granular Activated Carbon and Anionic Resins: Thermodynamics, Isotherms and Kinetic Studies

Adsorption Behaviour of Lactic Acid on Granular Activated Carbon and Anionic Resins: Thermodynamics, Isotherms and Kinetic Studies

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

Modelling of Batch Lactic Acid Fermentation in the Presence of Anionic Clay

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