Journal of Applied Membrane Science & Technology最新文献_第4页

P84 Co-Polyimide-based Tubular Carbon Membrane: Effect of Pyrolysis Temperature P84共聚酰亚胺基管状碳膜:热解温度的影响

Journal of Applied Membrane Science & Technology Pub Date : 2018-12-05 DOI: 10.11113/AMST.V23N1.121

N. Sazali, W. Salleh, N. Arsat, Z. Harun, K. Kadirgama

引用次数: 9

Improved Hydrophilicity of Membrane by Ethylenediaminetetraacetic Acid Modification 乙二胺四乙酸改性提高膜亲水性

Journal of Applied Membrane Science & Technology Pub Date : 2018-12-05 DOI: 10.11113/AMST.V23N1.135

M. Chan, M. Letchumanan

{"title":"Improved Hydrophilicity of Membrane by Ethylenediaminetetraacetic Acid Modification","authors":"M. Chan, M. Letchumanan","doi":"10.11113/AMST.V23N1.135","DOIUrl":"https://doi.org/10.11113/AMST.V23N1.135","url":null,"abstract":"Hydrophilic membranes exhibit good flux and low fouling tendency, which are the crucial criteria for a good membrane. Attempts have been done by researchers over the past decades to enhance the hydrophilicity of membrane by using nanoparticles and grafting. However, these processes are tedious and costly. This study improves the hydrophilicity of cellulose acetate (CA) membranes by using ethylenediaminetetraacetic acid (EDTA) via simple blending method. Recent study showed that fouled membrane which was cleaned by EDTA exhibited high water flux performance. However, the use of EDTA in formulating a membrane has not been disclosed elsewhere. Thus, the objective of this study is to conduct a series of experiments to find out the role of EDTA in improving the hydrophilicity of CA membranes. Membranes with varying EDTA concentration were prepared via dry-wet phase inversion technique. Contact angle, porosity and water flux of the resultant membranes were determined. Additionally, the morphologies of the membranes were imaged using FESEM. Results showed that EDTA was a good pore former, which can be seen clearly from FESEM images. This explains for the high porosity properties in CA-EDTA membranes. Membrane with 1 wt% of EDTA showed the highest water flux, which was ~15 L/(h.m2). Meanwhile, no water flux was observed after three hours when pure CA membrane was used in a dead-end filtration cell. In conclusion, EDTA is a promising additive in improving the hydrophilicity of membranes.","PeriodicalId":326334,"journal":{"name":"Journal of Applied Membrane Science & Technology","volume":"224 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114986996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Chitosan/Silica Composite Membrane: Adsorption of Lead(II) Ion from Aqueous Solution 壳聚糖/二氧化硅复合膜对水溶液中铅离子的吸附

Journal of Applied Membrane Science & Technology Pub Date : 2018-12-05 DOI: 10.11113/AMST.V23N1.141

N. Rosdi, M. Sokri, N. M. Rashid, M. S. C. Chik, M. S. Musa

{"title":"Chitosan/Silica Composite Membrane: Adsorption of Lead(II) Ion from Aqueous Solution","authors":"N. Rosdi, M. Sokri, N. M. Rashid, M. S. C. Chik, M. S. Musa","doi":"10.11113/AMST.V23N1.141","DOIUrl":"https://doi.org/10.11113/AMST.V23N1.141","url":null,"abstract":"Chitosan membrane has the potential to separate lead(II) ions from aqueous solution. However, the kind of membrane has a drawback due to the low structural properties. Thus, this study investigates the role of silica in improving chitosan-based flat sheet membrane for removal of lead(II) ions from aqueous solution. The functional groups and structural morphologies were characterized using Fourier Transform Infrared-Attenuated Total Reflectance (FTIR-ATR) spectrometer and Scanning Electron Microscope (SEM), respectively. The membrane performance in terms of adsorption study was conducted at different pHs and initial concentration of lead(II) solution. The FTIR-ATR spectrum showed the existence of new absorption peak of chitosan/silica membrane. SEM images revealted the presence of microvoids on the cross-section of the chitosan/silica membrane whereas pure chitosan membrane possessed dense structure. The adsorption study showed that the composite membrane exhibited higher efficiency of lead(II) removal at optimum pH of 7.0 which was 89.27% as compared to 11.50% of pure chitosan membrane. The amount of lead(II) adsorbed onto the membrane was 57.60 mg/g. Therefore, it indicates the potential use of silica to improve the properties of chitosan membrane for removal of heavy metal from water solution.","PeriodicalId":326334,"journal":{"name":"Journal of Applied Membrane Science & Technology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131422582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Reduction of Total Suspended Solids, Turbidity and Colour of Palm Oil Mill Effluent using Hybrid Coagulation-Fltrafiltration Process 混凝-过滤混合工艺降低棕榈油厂废水的总悬浮物、浊度和颜色

Journal of Applied Membrane Science & Technology Pub Date : 2018-12-05 DOI: 10.11113/AMST.V23N1.144

W. Q. Ng, S. Lai, K. C. Chong, S. S. Lee, C. Koo, W. Chong

{"title":"Reduction of Total Suspended Solids, Turbidity and Colour of Palm Oil Mill Effluent using Hybrid Coagulation-Fltrafiltration Process","authors":"W. Q. Ng, S. Lai, K. C. Chong, S. S. Lee, C. Koo, W. Chong","doi":"10.11113/AMST.V23N1.144","DOIUrl":"https://doi.org/10.11113/AMST.V23N1.144","url":null,"abstract":"High consumption and production of palm oil have led to the massive generation of palm oil mill effluent (POME). This study was intended to reduce the total suspended solids (TSS), turbidity and colour using hybrid coagulation-ultrafiltration process. POME was pre-treated with coagulation process using polyaluminium chloride (PAC) and optimization of operating condition for coagulation process was performed. The coagulation results revealed that optimum pH, dosage of coagulant and rapid mixing speed were pH 4, 600 mg/L and 200 rpm, respectively. It achieved the highest percent reduction of TSS, turbidity and colour with 99.74%, 94.44% and 94.60%, respectively. Ultrafiltration (UF) membrane was fabricated using polyethersulfone (PES), polyvinylpyrrolidone (PVP) and titanium dioxide (TiO2) nanoparticle. Different concentrations ranging from zero and 1.0 wt% of TiO2 nanoparticles were added into the dope solution. The characterization studies of UF membranes confirmed that higher concentration of TiO2 provided higher pure water permeability and more porous structure in the UF membranes. The amount of TiO2 in membrane only affected the permeate flux but had no obvious effects on the reduction of TSS, turbidity and colour. The optimum transmembrane pressure was found to be 3 bar, resulting in the greatest reduction of TSS, turbidity and colour.","PeriodicalId":326334,"journal":{"name":"Journal of Applied Membrane Science & Technology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130686158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Verification of a Combined Fouling Model to Predict Flux Decline during Ultrafiltration of Organic Solutes 预测有机溶质超滤过程中通量下降的联合结垢模型的验证

Journal of Applied Membrane Science & Technology Pub Date : 2018-11-21 DOI: 10.11113/AMST.V22N2.138

I. N. H. M. Amin, A. Mohammad

引用次数: 0

Morphological and Physical Study of La0.7Sr0.3Co0.2Fe0.8O3-δ (LSCF 7328) Flat Membranes Modified by Polyethylene Glycol (PEG) 聚乙二醇修饰La0.7Sr0.3Co0.2Fe0.8O3-δ (LSCF 7328)平板膜的形态与物理研究

Journal of Applied Membrane Science & Technology Pub Date : 2018-11-21 DOI: 10.11113/AMST.V22N2.131

A. M. Ilham, N. Khoiroh, S. Jovita, R. M. Iqbal, L. Harmelia, S. D. Nurherdiana, W. P. Utomo, H. Fansuri

{"title":"Morphological and Physical Study of La0.7Sr0.3Co0.2Fe0.8O3-δ (LSCF 7328) Flat Membranes Modified by Polyethylene Glycol (PEG)","authors":"A. M. Ilham, N. Khoiroh, S. Jovita, R. M. Iqbal, L. Harmelia, S. D. Nurherdiana, W. P. Utomo, H. Fansuri","doi":"10.11113/AMST.V22N2.131","DOIUrl":"https://doi.org/10.11113/AMST.V22N2.131","url":null,"abstract":"The aim of this work is to study the effect of polyethylene glycol (PEG) on the modification of microstructure formation correlated with the mechanical strength properties of perovskite-based membrane in form of a flat sheet. LSCF 7328 flat membrane was potentially promoted as an oxygen separator and catalyst for partial oxidation of methane reaction at high temperature. In this study, the phase-inversion followed by sintering process was used as the membrane fabrication method using varied PEG concentration of 0.55, 1.00, and 3.00 wt% with different molecular weight, i.e., PEG 300, 600, 1500, and 4000 Da for each PEG concentration. The result of morphology observation shows that almost every membrane hasthe asymmetric structure with finger-like pores and thin dense layer. Increasing PEG concentration as well as molecular weight increases pore size and affects on porosity, pore's volume, and physical properties of membrane. The largest pore size, pore volume and porosity of the membrane after sintering were found in the addition of 3.00% PEG 4000 (Da) additive with the value of 110.45 μm, 81.34 ml.g-1 and 120.6%, respectively. In addition, the mechanical properties of membrane were tested using the Vickers micro hardness method with the greatest value found in the addition of 3.00% PEG 1500 (Da) additive with the value of 13.58 Hv and the lowest is 3.00% PEG 4000 (Da) with the value of 1.2 Hv.","PeriodicalId":326334,"journal":{"name":"Journal of Applied Membrane Science & Technology","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127869242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Treatment of Synthetic Produced Water using Hybrid Membrane Processes 混合膜法处理合成采出水

Journal of Applied Membrane Science & Technology Pub Date : 2018-11-21 DOI: 10.11113/AMST.V22N2.145

N. Chin, S. Lai, K. C. Chong, S. S. Lee, C. Koo, H. S. Thiam

{"title":"Treatment of Synthetic Produced Water using Hybrid Membrane Processes","authors":"N. Chin, S. Lai, K. C. Chong, S. S. Lee, C. Koo, H. S. Thiam","doi":"10.11113/AMST.V22N2.145","DOIUrl":"https://doi.org/10.11113/AMST.V22N2.145","url":null,"abstract":"The study was concerned with the treatment of tank dewatering produced water using hybrid microfiltration (MF) and ultrafiltration (UF) processes. The pre-treatment MF membrane was fabricated with polyethersulfone (PES), n-methyl-2-pyrrolidone (NMP) and polyvinylpyrrolidone (PVP). The UF membranes meanwhile contained additional component, i.e., titanium dioxide (TiO2) nanoparticles in the range of zero to 1.0 wt.%. The membrane performances were analysed with respect to permeate flux, oil removal and flux recovery ratio. An increase in TiO2 nanoparticles enhanced the pore formation, porosity and pure water permeability due to improved hydrophilicity. The permeate flux of UF membranes increased with the increase of TiO2 nanoparticles and pressure. The oil removal rate by MF process was only 52.35%, whereas the oil rejection efficiency was between 82.34% and 95.71% for UF process. It should be highlighted that the overall oil removal rate could achieve as high as 97.96%. Based on the results, the PES membrane incorporated with 1.0 wt.% TiO2 was proved to be the most promising membrane at a transmembrane pressure of 3 bar. Although 1.0 M NaOH solution could be used as cleaning agent to recover membrane water flux, it is not capable of achieving good results as only 52.18% recovery rate was obtained.","PeriodicalId":326334,"journal":{"name":"Journal of Applied Membrane Science & Technology","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132382938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vapor-induced Crystallization in Alcoholic Sorption using Poly(lactic acid) Films 聚乳酸膜在酒精吸附中的气相诱导结晶

Journal of Applied Membrane Science & Technology Pub Date : 2018-11-21 DOI: 10.11113/AMST.V22N2.125

Y. Moriizumi, K. Nagai

引用次数: 0

Effect of Take-up Speed on the Fabrication of Cellulose Acetate Hollow Fibre Membrane in CO2 Separation from N2 and CH4 吸收速度对CO2分离N2和CH4过程中醋酸纤维素中空纤维膜制备的影响

Journal of Applied Membrane Science & Technology Pub Date : 2018-11-21 DOI: 10.11113/AMST.V22N2.129

M. Mubashir, Y. Yeong, T. Chew, K. K. Lau

引用次数: 0

Precursor Selection for Carbon Membrane Fabrication: A Review 碳膜制备前驱体的选择研究进展

Journal of Applied Membrane Science & Technology Pub Date : 2018-11-21 DOI: 10.11113/AMST.V22N2.122

N. Sazali, W. Salleh, M. N. Izwanne, Z. Harun, K. Kadirgama

{"title":"Precursor Selection for Carbon Membrane Fabrication: A Review","authors":"N. Sazali, W. Salleh, M. N. Izwanne, Z. Harun, K. Kadirgama","doi":"10.11113/AMST.V22N2.122","DOIUrl":"https://doi.org/10.11113/AMST.V22N2.122","url":null,"abstract":"The rapid expansion of gas separation technology since it was first introduced is promoted by the beneficial selective permeability capability of the polymeric membranes. Up to the currently available information, a large number of studies have reported polymeric membranes permeability and selectivity performances for a different type of gasses. However, trends showed that separation of gases using as per in synthesized polymers had reached a bottlenecks performance limits. Due to this reason, membranes in the form of asymmetric and composite structures is seen as an interesting option of membrane modification to improve the performance and economic value of the membranes alongside with an introduction of new processes to the field. An introduction of new polymers during membrane fabrication leads to a formation of its unique structure depending on the polymers. Thus, structured studies are needed to determine the kinetic behavior of the new addition to membrane structures. This review examines the ongoing progress made in understanding the effects of the different polymers additives to the structural modification and the gas separation performances of the carbon membranes. A reduction of defects consisted of pore holes, and cracks on carbon membranes could be minimized with the right selection of polymer precursor.","PeriodicalId":326334,"journal":{"name":"Journal of Applied Membrane Science & Technology","volume":"307 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116334173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 22