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| 1 | Polydimethylsiloxane (PDMS) Composite Membrane Fabricated on the Inner Surface of a Ceramic Hollow Fiber: From Single-Channel to Multi-Channel显示文摘The fabrication of a separation layer on the inner surface of a hollow fiber (HF) substrate to form an HF composite membrane offers exciting opportunities for industrial applications, although challenges remain. This work reports on the fabrication of a polydimethylsiloxane (PDMS) composite membrane on the inner surface of a single-channel or multi-channel ceramic HF via a proposed coating/crossflow approach. The nanostructures and transport properties of the PDMS HF composite membranes were optimized by controlling the polymer concentration and coating time. The morphology, surface chemistry, interfacial adhesion, and separation performance of the membranes were characterized by fieldemission scanning electron microscope (FE-SEM), attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectroscopy, the nano-indentation/scratch technique, and pervaporation (PV) recovery of bio-butanol, respectively. The formation mechanism for the deposition of the PDMS layer onto the inner surface of the ceramic HF was studied in detail. The optimized inner surface of the PDMS/ceramic HF composite membranes with a thin and defect-free separation layer exhibited a high flux of ~1800 gm-2h-1 and an excellent separation factor of 35–38 for 1 wt% n-butanol/water mixtures at 60 C. The facile coating/cross-flow methodology proposed here shows great potential for fabricating inner-surface polymer-coated HFs that have broad applications including membranes, adsorbents, composite materials, and more. | Ziye Dong Haipeng Zhu Yingting Hang Gongping Liu Wanqin Jin | 2020 | Engineering2020，6，1： | 2 |
| 2 | 基于陶瓷膜技术的羊乳酪蛋白和其他组分的高效分级分离显示文摘为量化0.05μm陶瓷膜脱除羊乳中乳清蛋白、乳糖、灰分、钙和磷的能力,在50℃条件下,脱脂乳进行3倍浓缩,之后2次间歇补水至原体积进行清洗过滤,最终得到1份截留液、3份透过液,并计算各组分总脱除率。结果表明:乳清蛋白脱除率为96.17%,乳糖脱除率为86.42%,灰分脱除率为73.39%,钙脱除率为34.90%,磷脱除率为55%。稀释过滤完毕后膜的纯水膜通量衰减系数为55.57%,使用质量分数为2%氢氧化钠和1%的硝酸溶液进行清洗,膜通量的恢复系数为99.21%。0.05μm陶瓷膜可以实现羊乳酪蛋白和其他组分的有效分离,该技术适合在没有干酪乳清的条件下,以生鲜乳为原料加工酪蛋白胶束粉、乳清蛋白粉、乳糖等乳基配料产品。 | 姜竹茂 杨宝雨 芦晶 逄晓阳 吴政 岳元春 王童 Eman Saad RAGAB 张书文 吕加平 | 2019 | 食品科学2019，40，23： | 1 |
| 3 | 陶瓷膜孔径对鲜奶级牛羊乳酪蛋白和乳清蛋白分离效果对比研究显示文摘本文比较了50 nm和100 nm孔径国产陶瓷膜对脱脂牛、羊乳中酪蛋白与乳清蛋白分离过程和膜性能参数的影响,通过测定不同阶段截留液与透过液pH、成分含量、色度变化、蛋白脱除率等指标对分离效果进行对比分析。结果表明:羊乳在孔径50 nm的陶瓷膜中膜通量为96.89 kg/(m^(2)·h)显著高于100 nm陶瓷膜的膜通量90.58 kg/(m^(2)·h)(P<0.05),且透过液中几乎不含酪蛋白。50 nm陶瓷膜对脱脂牛乳和脱脂羊乳的乳清蛋白总脱除率均达到96%以上,钙脱除率均达到31%以上,磷脱除率均达到55%以上。与100 nm陶瓷膜相比,50 nm陶瓷膜能更有效分离牛乳和羊乳中的乳清蛋白和酪蛋白。 | 张雨萌 宋博 杨宝雨 王晓丹 张文远 谢宁 逄晓阳 吕加平 张书文 | 2022 | 中国乳品工业2022，50，8： | 1 |
| 4 | 羊乳酪蛋白2种不同膜分离方法比较研究显示文摘为量化中空纤维素膜和卷式有机膜分离羊乳中酪蛋白和乳清蛋白的能力,在相同的操作压力和料液温度下,从渗透液的感官、SDS-PAGE定性、凯氏定氮的定量和膜通量等几个方面对2种膜的分离效果进行了较系统的比较分析。研究表明750 ku空纤维膜羊乳酪蛋白脱除率为98.8%,乳清蛋白脱除率为82.7%;0.1μm卷式有机膜中羊乳酪蛋白脱除率为99.6%,乳清蛋白脱除率为82.7%。过滤后0.1μm卷式有机膜纯水通量衰减系数(39.7%)小于750 ku中空纤维膜(63.7%),前者清洗后纯水通量恢复系数(88.5%)更高,说明卷式有机膜污染慢,易清洗。结果表明,0.1μm卷式有机膜可以有效地分离羊乳中酪蛋白和乳清蛋白,可在工业中大量应用。 | 李欣雨 孟毅 贺宝元 周妍 魏怡 连严慧 张磊 土双静 薛海燕 | 2023 | 中国乳品工业2023，51，12： | 0 |
| 5 | Imprinted membranes for sustainable separation processes显示文摘The rapid industrial growth and the necessity of recovering and recycling raw materials increased the interest in the production of highly selective and efficient separation tools.In this perspective,a relevant input was given by the membrane-based technology and the production of imprinted membranes,which possess specific recognition properties at molecular and ionic level,offers the possibility of developing sustainable and green processes.Furthermore,the integration of imprinted membranes with traditional or membrane-based approaches is a promising strategy in the logic of process intensification,which means the combination of different operations in a single apparatus.This work discusses the concept and separation mechanisms of imprinted membranes.Furthermore,it presents an overview of their application in organic solvent nanofiltration,for the removal of toxic agents and recovery solvent,as well as valuable compounds.The recent advances in water treatment,such as pesticide removal and recovery of metal ions,are also discussed.Finally,potential applications of imprinted membranes in hybrid processes are highlighted,and a look into the future of membrane separations for water treatment and recovery of critical raw materials is offered. | Laura Donato Enrico Drioli | 2021 | Frontiers of Chemical Science and Engineering2021，15，4： | 0 |
| 6 | Enhanced Biogas Production from the Anaerobic Batch Treatment of Banana Peels显示文摘Waste disposal management and the energy crisis are important challenges facing most countries.The fruit-processing industry generates daily several tons of wastes,of which the major share comes from banana farms.Anaerobic digestion(AD)technology has been applied to the treatment of wastewater,animal slurry,food waste,and agricultural residues,with the primary goals of energy production and waste elimination.This study examines the effect of organic loading(OL)and cow manure(CM)addition on AD performance when treating banana peel waste(BPW).The maximum daily biogas production rates of banana peels(BPs)with a CM content of 10%,20%,and 30%at 18 and 22 g of volatile solids(gvs)per liter were 50.20,48.66,and 62.78 mL (gvs.d)^-1 and 40.49,29.57,and 46.54 mL (gvs.d)^-1,respectively.However,the daily biogas yield showed no clear interdependence with OL or CM content.In addition,a kinetic analysis using first-order and cone models showed that the kinetic parameters can be influenced by the process parameters. | Spyridon Achinas Janneke Krooneman Gerrit Jan Willem Euverink | 2019 | Engineering2019，5，5： | 0 |
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