Separation of acetic acid and reducing sugars from biomass derived hydrosylate using biopolymer blend polyethersulfone membrane

Lakra, Reshma; Saranya, R.; Thuyavan, Y. Lukka; Sugashini, S.; Begum, K.M. Meera Sheriffa; Arthanareeswaran, G.

doi:10.1016/j.seppur.2013.08.023

Cited by 28 publications

(11 citation statements)

References 43 publications

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“…It is noted that the permeate flux was responsive to the solution pH, thus low pH value exhibited severe flux decline as compared to high pH value. Similar experiment trends were reported by other researchers [7,16,17]. The feasibility of fractionation depends on charge, thus more charged ions are retained better than monovalent ions [18].…”

Section: Effect Of Phsupporting

confidence: 89%

EFFECT OF pH ON FLUX DECLINE DURING FRACTIONATION OF GLUCOSE FROM CELLULOSE HYDROLYSATE THROUGH A POLYSULFONE MEMBRANE

Zain

Mohammad²

2016

MJAS

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Concentrating glucose after enzymatic hydrolysis of lignocellulosic biomass is an important step in order to prepare the stream to undergo the fermentation process. However, glucose itself can be inhibitor for the enzymatic hydrolysis, hence in situ glucose removal is recommended. Ultrafiltration represents a promising procedure for isolation of enzymes from hydrolysate and for the removal of glucose. One of the obstacles in successfully utilizing ultrafiltration's membranes has been due to the membrane fouling. The flux behavior of polysulfone (PSF) membrane was studied in concentrating glucose from cellulose hydrolysate during dead end ultrafiltration. Different pH of solutions was used and Kumar's model was applied to analyse the fouling mechanism. The minimum fouling was obtained at pH solution above the IEP due to protein-protein and membrane-protein repulsions alleviating aggregation and fouling. Cake formation blocking was identified as the dominant mechanism for flux decline.Keywords: enzyme hydrolysis, lignocellulosic biomass, ultrafiltration, polysulfone, fouling Abstrak Pemekatan glukosa selepas hidrolisis enzim bagi penghasilan bioetanol daripada biojisim lignoselulosa merupakan langkah yang penting bagi penyediaan untuk proses fermentasi selanjutnya. Penuras ultra menjadi pilihan bagi kaedah yang berpotensi untuk penyekatan enzim dan penyingkiran glukosa daripada larutan hidrolisis. Namun, salah satu rintangan bagi penggunaan maksima bagi penuras ultra adalah kotoran. Kriteria fluks bagi membran polisulfon di kaji dari pemekatan glukosa oleh larutan hidrolisis selulosa di penuras ultra hujung mati. Larutan yang berlainan pH digunakan untuk mengkaji profil fluks dan model Kumar digunakan untuk menganalisis mekanisma kotoran. Kotoran yang minima diperolehi pada larutan yang mempunyai pH yang lebih tinggi daripada nilai titik isoelektrik larutan hidrolisis. Halangan pembentukan kek telah dikenalpasti sebagai mekanisma yang dominan bagi pengurangan fluks.

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Section: Effect Of Phsupporting

confidence: 89%

EFFECT OF pH ON FLUX DECLINE DURING FRACTIONATION OF GLUCOSE FROM CELLULOSE HYDROLYSATE THROUGH A POLYSULFONE MEMBRANE

Zain

Mohammad²

2016

MJAS

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“…Researchers have studied individually the influence of preparation parameters such as additives, coagulants, coagulant bath temperature, and evaporation time on the formation of membrane structure. Hydrophilic modifiers and surface modifiers were used in order to improve the PES membrane performance. Membrane formation depends on the various fabrication parameters and process conditions.…”

Section: Introductionmentioning

confidence: 99%

Impact of solvents and process conditions on the formation of polyethersulfone membranes and its fouling behavior in lake water filtration

Thuyavan

Anantharaman

Arthanareeswaran

et al. 2016

J. Chem. Technol. Biotechnol.

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BACKGROUND: The existence of natural organic colloids causes membrane fouling, which decreases the flux rate. Hence, membrane modification and lake water pretreatment were carried out to improve membrane performance. In this study, important preparation parameters such as solvents (N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMAc), dimethyl sulfoxide (DMSO) and N-methyl-2-pyrrolidone (NMP)), coagulant bath temperature (CBT) (10, 20 and 30 ∘ C) and coagulant (sodium dodecyl sulfate SDS): 0.5, 1.0 and 1.5 g L −1 ) were optimized for the fabrication of high flux polyethersulfone (PES) membrane. Cloisite was used for the pretreatment of lake water. RESULTS:The highest water permeability and pore radius of 393.03 × 10 −9 m s −1 kPa −1 and 4.43 nm, respectively, were observed for the PES/DMAc membrane combination at coagulant bath temperature of 10 ∘ C and non-solvent containing 1.5 g L −1 SDS solution. Morphology analysis also displayed large pore size and macrovoid formation for such combination. Pretreated lake water had highest natural organic matter (NOM) rejection of 93% for PES/DMF membrane made at a coagulant bath temperature of 20 ∘ C and non-solvent containing water. CONCLUSION: High flux PES membrane formation is achieved through the DMAc solvent with SDS as non-solvent solution at lower coagulation bath temperature. Pretreated lake water showed an increase of membrane flux and fouling resistance. Performance of lower MWCO membranesAmong the LMWCO membranes, CBT1 and S4 membrane have the highest average flux of 29.93 and 13.15 L m −2 h −1 for the J Chem Technol Biotechnol 2016; 91: 2568-2581

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“…There had also been reports on novel membranes synthesised by blending cellulose acetate (CA) with hydrophilic biopolymer carboxymethyl cellulose acetate (CMC) which shows enhanced hydrophilic characteristics and higher pure water flux (PWF) (Han et al, 2013). Lakra et al (2013) reported Chitosan blend membranes such as PES and PES/CA with improved flux and without compromising the rejection efficiency.…”

Section: Introductionmentioning

confidence: 99%

Effective removal of humic acid using xanthan gum incorporated polyethersulfone membranes

Kumar

Arthanareeswaran

Paul

et al. 2015

Ecotoxicology and Environmental Safety

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Separation of acetic acid and reducing sugars from biomass derived hydrosylate using biopolymer blend polyethersulfone membrane

Cited by 28 publications

References 43 publications

EFFECT OF pH ON FLUX DECLINE DURING FRACTIONATION OF GLUCOSE FROM CELLULOSE HYDROLYSATE THROUGH A POLYSULFONE MEMBRANE

EFFECT OF pH ON FLUX DECLINE DURING FRACTIONATION OF GLUCOSE FROM CELLULOSE HYDROLYSATE THROUGH A POLYSULFONE MEMBRANE

Impact of solvents and process conditions on the formation of polyethersulfone membranes and its fouling behavior in lake water filtration

Effective removal of humic acid using xanthan gum incorporated polyethersulfone membranes

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