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渗透汽化 5

膜分离 5

绿色化工 4

反渗透 3

纳滤 3

聚偏氟乙烯 3

双极板 2

反渗透膜 2

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气体分离 2

氧化石墨烯 2

水处理 2

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Preparation and properties of hollow fibre nanofiltration membrane with continuous coffee-ring structure

Xiuzhen Wei, Xufeng Xu, Yi Chen, Qian Zhang, Lu Liu, Ruiyuan Yang, Jinyuan Chen, Bosheng Lv

《化学科学与工程前沿（英文）》 2021年 第15卷 第2期   页码 351-362 doi: 10.1007/s11705-020-1943-8

摘要： Polyamide (PA) hollow fibre composite nanofiltration (NF) membranes with a coffee-ring structure and beneficial properties were prepared by adding graphene oxide (GO) into the interfacial polymerization process. The presentation of the coffee-ring structure was attributed to the heterogeneous, finely dispersed multiphase reaction system and the “coffee-stain” effect of the GO solution. When the piperazine concentration was 0.4 wt-%, the trimesoyl chloride concentration was 0.3 wt-%, and the GO concentration was 0.025 wt-%, the prepared NF membranes showed the best separation properties. The permeate flux was 76 L·m ·h , and the rejection rate for MgSO was 98.6% at 0.4 MPa. Scanning electron microscopy, atomic force microscopy, and attenuated total reflectance-Fourier transform infrared spectroscopy were used to characterize the chemical structure and morphology of the PA/GO NF membrane. The results showed that GO was successfully entrapped into the PA functional layer. Under neutral operating conditions, the PA/GO membrane showed typical negatively charged NF membrane separation characteristics, and the rejection rate decreased in the order of Na SO >MgSO >MgCl >NaCl. The PA/GO NF membrane showed better antifouling performance than the PA membrane.

关键词： GO     PA     interfacial polymerization     hollow fibre NF membrane    

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Role of membrane and compound properties in affecting the rejection of pharmaceuticals by different RO/NF membranes

Yang-ying Zhao, Fan-xin Kong, Zhi Wang, Hong-wei Yang, Xiao-mao Wang, Yuefeng F. Xie, T. David Waite

《环境科学与工程前沿（英文）》 2017年 第11卷 第6期 doi: 10.1007/s11783-017-0975-x

摘要： This study was conducted to assess the merits and limitations of various high-pressure membranes, tight nanofiltration (NF) membranes in particular, for the removal of trace organic compounds (TrOCs). The performance of a low-pressure reverse osmosis (LPRO) membrane (ESPA1), a tight NF membrane (NF90) and two loose NF membranes (HL and NF270) was compared for the rejection of 23 different pharmaceuticals (PhACs). Efforts were also devoted to understand the effect of adsorption on the rejection performance of each membrane. Difference in hydrogen bond formation potential (HFP) was taken into consideration. Results showed that NF90 performed similarly to ESPA1 with mean rejection higher than 95%. NF270 outperformed HL in terms of both water permeability and PhAC rejection higher than 90%. Electrostatic effects were more significant in PhAC rejection by loose NF membranes than tight NF and LPRO membranes. The adverse effect of adsorption on rejection by HL and ESPA1 was more substantial than NF270 and NF90, which could not be simply explained by the difference in membrane surface hydrophobicity, selective layer thickness or pore size. The HL membrane had a lower rejection of PhACs of higher hydrophobicity (log D>0) and higher HFP (>0.02). Nevertheless, the effects of PhAC hydrophobicity and HFP on rejection by ESPA1 could not be discerned. Poor rejection of certain PhACs could generally be explained by aspects of steric hindrance, electrostatic interactions and adsorption. High-pressure membranes like NF90 and NF270 have a high promise in TrOC removal from contaminated water.

关键词： Trace organic compounds (TrOCs)     Nanofiltration (NF)     Adsorption     Membrane properties     Water treatment    

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Preparation and characterization of EVAL hollow fiber membrane adsorbents filled with cation exchange

Fengli ZHANG, Yuzhong ZHANG, Hong LI, Guangfen LI,

《化学科学与工程前沿（英文）》 2009年 第3卷 第4期   页码 462-467 doi: 10.1007/s11705-009-0011-1

摘要： EVAL hollow fiber membrane adsorbents filled with powder D061-type cation exchange resin were prepared through dry-wet spinning process, using hydrophilic copolymer EVAL as the fiber substrate. The microstructures of the membrane adsorbents were observed, and the pure water fluxes, BSA rejection, and static adsorption capacities of membrane adsorbents for BSA were measured. The effect of the resin-filled content on membrane performance has been discussed. The results showed that EVAL hollow fiber membrane adsorbents filled with D061-type cation exchange resins had good adsorption capacity, and the adsorption capacity increased with the quantity of the resin-filled content. The static protein adsorption capacity was 77.14 mg BSA/g membrane adsorbents when D061 resin loading content was 65% at pH 4.5.

关键词： substrate     copolymer EVAL     exchange     EVAL hollow     resin-filled content    

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Energy reduction of a submerged membrane bioreactor using a polytetrafluoroethylene (PTFE) hollow-fibermembrane

Taro Miyoshi, Thanh Phong Nguyen, Terumi Tsumuraya, Hiromu Tanaka, Toru Morita, Hiroki Itokawa, Toshikazu Hashimoto

《环境科学与工程前沿（英文）》 2018年 第12卷 第3期 doi: 10.1007/s11783-018-1018-y

摘要： In this study, we modified a polytetrafluoroethylene (PTFE) hollow-fiber membrane element used for submerged membrane bioreactors (MBRs) to reduce the energy consumption during MBR processes. The high mechanical strength of the PTFE membrane made it possible to increase the effective length of the membrane fiber from 2 to 3 m. In addition, the packing density was increased by 20% by optimizing the membrane element configuration. These modifications improve the efficiency of membrane cleaning associated with aeration. The target of specific energy consumption was less than 0.4 kWh·m in this study. The continuous operation of a pilot MBR treating real municipal wastewater revealed that the MBR utilizing the modified membrane element can be stably operated under a specific air demand per membrane surface area (SAD ) of 0.13 m ·m ·hr when the daily-averaged membrane fluxes for the constant flow rate and flow rate fluctuating modes of operation were set to 0.6 and 0.5 m ·m ·d , respectively. The specific energy consumption under these operating conditions was estimated to be less than 0.37 kWh·m . These results strongly suggest that operating an MBR equipped with the modified membrane element with a specific energy consumption of less than 0.4 kWh·m is highly possible.

关键词： Energy-saving     Membrane bioreactor     Polytetrafluoroethylene (PTFE) membrane     Hollow fiber     Power consumption    

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Filtration ability of hollow fiber membrane for production of magnesium ammonium phosphate crystals by

H. Watamura, H. Marukawa, I. Hirasawa

《化学科学与工程前沿（英文）》 2013年 第7卷 第1期   页码 55-59 doi: 10.1007/s11705-013-1312-y

摘要： Relationship between magnesium ammonium phosphate (MAP) crystal properties and the filtration ability of hollow fiber membrane (HFM) were investigated. Phosphorus recovery process by crystallization has a problem that it produces a large amount of fine crystals. So improvement of the crystallization process by combining with filtration was discussed. MAP crystals were obtained by batch reaction crystallization and the filtration characteristics were investigated. The filtration was evaluated by the specific filtration resistance ( ) on HFM. Filtered slurry was prepared with each suspension density and crystal size distribution. The solution was filtered at constant pressure of 0.02 MPa and the filtration time on each filtrated volume was recorded. As a result, decreases exponentially with suspension density increasing from 0.25 g/L to 0.5 g/L and decreases moderately with suspension density increasing from 0.5 g/L to 1.5 g/L. of large crystals decreases exponentially at less suspension density than of small crystals does. Also, increases as the ratio of the fractured crystals increases.

关键词： membrane separation     crystallization     MAP    

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Cell carrier function of hollow-fiber membrane in rotating wall vessel bioreactor

SONG Kedong, LIU Tianqing, ZHAO Hu, LI Xiangqin, MA Xuehu, CUI Zhanfeng

《化学科学与工程前沿（英文）》 2008年 第2卷 第1期   页码 34-39 doi: 10.1007/s11705-008-0022-3

摘要： Large-scale expansion of the osteoblasts of a Sprague-Dawley (SD) rat was studied in a rotating wall hollow-fiber membrane bioreactor (RWHMB) by using hollow-fiber membrane as the carrier. For the sake of contrast, cells were also expanded in a T-flask using a hollow-fiber membrane as carrier and in a rotating wall vessel bioreactor (RWVB) using a microcarrier. During the culture period, the cells were sampled every 12 h, and after 5 days, the cells were harvested and evaluated with scanning electron microscopy (SEM), hematoxylin-eosin (HE) staining and alkaline phosphatase (ALP) staining. Moreover, von-Kossa staining and Alizarin Red S staining were carried out for mineralized nodules formation. The results show that in RWHMB, the cells present better morphology and vitality and secrete much more extracellular matrix. It is concluded that the RWHMB combines the advantages of the rotating wall vessel and hollow-fiber membrane bioreactors. The hydrodynamic stimulation within it accelerates the metabolism of the osteoblast and mass transfer, which is propitious to cell differentiation and proliferation.

关键词： RWHMB     microcarrier     hematoxylin-eosin     von-Kossa staining     propitious    

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Effects of baffles on separation of aqueous ethanol solution with hollow fibers

Zhihong YANG, Guoliang ZHANG, Lan LIN, Danping REN, Qin MENG, Hongzi ZHANG

《化学科学与工程前沿（英文）》 2009年 第3卷 第1期   页码 68-72 doi: 10.1007/s11705-009-0130-8

摘要： The effects of baffles on the operation and mass-transfer characteristics in novel hollow fiber membrane contactor used in distillation were investigated. Hollow fiber membranes, coated with a 7 μm polydimethyl-siloxane, were operated as structural packing in the separation of ethanol-water solutions. The parallel flow mode was chosen for separation due to the stronger driving force of the concentration difference, in which liquid flows through the lumens of the fibers and vapor flows countercurrent-wise outside the fibers. Two baffles were installed on the shell side of the membrane contactors to enhance separation, which had a round shape with a semi-lunar hole. The results show that both baffled and unbaffled membrane contactors gave better, more productive separations than traditional packing in distillation, such as the excellent Sulzer Gauze BX structured packing. The baffled membrane contactors performed better than unbaffled ones, especially at high vapor velocities. The minimal HTU of membrane contactor with baffles could reach as low as 4.5 cm, and almost all the contactors could work well above the limit where flooding normally occurs in conventional cases. Theoretical analysis predicted that baffles helped membrane module to obtain a higher mass-transfer coefficient and a smaller mass-transfer resistance. Finally, theoretical mass-transfer coefficient and experimental value were compared as well as the contribution of each individual mass-transfer coefficients among liquid, gas and membrane.

关键词： hollow fiber     membrane contactor     baffle     mass-transfer     ethanol-water    

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我国中空纤维膜技术与产业发展战略研究

肖长发,何本桥,武春瑞,龚耿浩,蒋士成

《中国工程科学》 2021年 第23卷 第2期   页码 153-160 doi: 10.15302/J-SSCAE-2021.02.021

摘要：

中空纤维膜技术是解决当前全球面临的水资源与能源危机、环境污染等重大问题的共性关键技术之一，也是节能减排、清洁生产、系统效率与产品品质提升等实现高质量发展的重要技术支撑。本文系统分析了中空纤维膜发展的战略需求、现状与趋势，指出了我国中空纤维膜技术在各个细分领域中存在的主要问题和未来创新重点，明确了2025年和2030年的发展目标。研究提出中空纤维超 / 微滤膜、高品质疏水膜、新膜技术、废旧膜回收 4 个方面的重点任务与要求，并从人才管理、创新投入、行业规范、国际合作 4 个方面给出了保障措施建议，以期为我国中空纤维膜产业高质量发展提供参考。

关键词： 中空纤维膜，膜材料，膜应用，可持续和高质量发展    

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PDMS中空纤维渗透汽化膜处理含盐有机废水

李俊俊,顾瑾,孙余凭,张林,雷乐成

《中国工程科学》 2014年 第16卷 第7期   页码 68-72

摘要：

本文以聚二甲基硅氧烷（PDMS）为膜材料，乙烯基三乙氧基硅烷（VTES）为交联剂，在聚偏氟乙烯（PVDF）中空纤维支撑膜表面通过交联反应制备出PDMS/PVDF中空纤维渗透汽化复合膜。采用扫描电子显微镜和全反射傅里叶红外光谱仪表征复合膜的形貌和结构变化。研究了膜对正丁醇-水、异丙醇-水及丙酮-水三种模拟含盐有机废水的分离效果，并考察了温度对膜性能的影响。结果表明：PDMS/PVDF中空纤维膜对这三种模拟含盐有机废水有较好的分离效果，操作温度为40 ℃ 时，膜的渗透通量分别为275.95 g/(m2·h)、322.16 g/(m2·h)、489.76 g/(m2·h)，分离因子为37.82、12.60、33.12。

关键词： 渗透汽化     PDMS     中空纤维膜     含盐有机废水    

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高强度纤维的低成本化开发新路

回显权

《中国工程科学》 2007年 第9卷 第11期   页码 132-136

摘要：

为增强玻璃纤维的工作强度，使它达到碳纤维的水平，提出了新生态预浸复合改性技术，以一种永 久保持新生态提高强度的方法达到此目的。

关键词： 玻璃纤维     新生态强度     高性能复合材料     低成本化    

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Pilot study for the treatment of sodium and fluoride-contaminated groundwater by using high-pressure membrane

Xiaomao WANG,Hongwei YANG,Zhenyu LI,Shaoxia YANG,Yuefeng XIE

《环境科学与工程前沿（英文）》 2015年 第9卷 第1期   页码 155-163 doi: 10.1007/s11783-014-0740-3

摘要： High-pressure membrane process is one of the cost-effective technologies for the treatment of groundwater containing excessive dissolved solids. This paper reports a pilot study in treating a typical groundwater in Huaibei Plain containing excessive sodium, sulfate and fluoride ions. Three membrane systems were set up and two brands of reverse osmosis (RO), four low-pressure RO (LPRO) and one tight nanofiltration (NF) membranes were tested under this pilot study. An apparent recovery rate at about 75% was adopted. Cartridge filtration, in combination with dosing antiscalent, was not sufficient to reduce the fouling potential of the raw water. All RO and LPRO systems (except for the two severely affected by membrane fouling) demonstrated similar rejection ratios of the conductivity (~98.5%), sodium (~98.5%) and fluoride (~99%). Membrane fouling substantially reduced the rejection performance of the fouled membranes. The tight NF membrane also had a good rejection on conductivity (95%), sodium (94%) and fluoride (95%). All membranes rejected sulfate ion almost completely (more than 99%). The electricity consumptions for the RO, LPRO and NF systems were 1.74, 1.10 and 0.72 kWh?m treated water, respectively. The estimated treatment costs by using typical RO, LPRO and tight NF membrane systems were 1.21, 0.98 and 0.96 CNY?m finished water, respectively. A treatment process consisting of either LPRO or tight NF facilities following multi-media filtration was suggested.

关键词： reverse osmosis (RO)     nanofiltration (NF)     water quality standards     sodium     fluoride     cost estimation    

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用于储能设备的一种新型高导电性和高选择性质子交换膜 Article

Kang Huang, Shuhao Lin, Yu Xia, Yongsheng Xia, Feiyan Mu, Yuqin Lu, Hongyan Cao, Yixing Wang, Weihong Xing, Zhi Xu

《工程（英文）》 2023年 第28卷 第9期   页码 69-78 doi: 10.1016/j.eng.2022.11.008

摘要：

Ion conductive membranes (ICMs) with highly conductive proton selectivity are of significant importance and greatly desired for energy storage devices. However, it is extremely challenging to construct fast proton-selective transport channels in ICMs. Herein, a membrane with highly conductive proton selectivity was fabricated by incorporating porous carbon sieving nanospheres with a hollow structure (HCSNs) in a polymer matrix. Due to the precise ion sieving ability of the microporous carbon shells and the fast proton transport through their accessible internal cavities, this advanced membrane presented a proton conductivity (0.084 S·cm−1) superior to those of a commercial Nafion 212 (N212) membrane (0.033 S·cm−1) and a pure polymer membrane (0.049 S·cm−1). The corresponding proton selectivity of the membrane (6.68 × 105 S·min·cm−3) was found to be enhanced by about 5.9-fold and 4.3-fold, respectively, compared with those of the N212 membrane (1.13 × 105 S·min·cm−3) and the pure membrane (1.56 × 105 S·min·cm−3). Low-field nuclear magnetic resonance (LF-NMR) clearly revealed the fast proton-selective transport channels enabled by the HCSNs in the polymeric membrane. The proposed membrane exhibited an outstanding energy efficiency (EE) of 84% and long-term stability over 1400 cycles with a 0.065% capacity decay per cycle at 120 mA·cm−2 in a typical vanadium flow battery (VFB) system.

关键词： Ion conductive membrane     Hollow carbon sieving nanosphere     Proton transport channel     Flow battery    

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陶瓷中空纤维内表面制备聚二甲基硅氧烷复合膜——从单通道到多通道 Article

董孜业, 朱海鹏, 杭颖婷, 刘公平, 金万勤

《工程（英文）》 2020年 第6卷 第1期   页码 89-99 doi: 10.1016/j.eng.2019.10.012

摘要：

在中空纤维载体内表面沉积分离层制备中空纤维复合内膜为其工业应用提供更多机遇，然而目前仍面临诸多挑战。本文提出通过涂覆/错流法在单通道或多通道陶瓷中空纤维内表面制备聚二甲基硅氧烷（PDMS）复合膜。通过控制聚合物浓度和涂覆时间，优化了PDMS／陶瓷中空纤维复合内膜的纳米结构和分离性能。分别用场发射电镜（FE-SEM）、傅里叶红外光谱（ATR-FTIR）、纳米压痕/划痕技术和渗透气化回收生物丁醇测试表征了膜的形貌、表面化学性质、界面结合力和分离性能。系统研究了陶瓷中空纤维内表面PDMS膜层的形成机理。优化的PDMS/陶瓷中空纤维复合内膜具有薄且无缺陷的分离层，用于60 ℃下1 wt％正丁醇-水混合物分离，通量高达约1800 g·m–2·h–1，分离因子为35~38。本文提出涂覆/错流的简便方法用于制备中空纤维内表面涂层，显现出巨大潜力，在膜材料、吸附剂、复合材料等领域具有广泛应用前景。

关键词： 陶瓷中空纤维     内膜     渗透汽化     聚二甲基硅氧烷     丁醇    

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Arsenic (V) removal from groundwater by GE-HL nanofiltration membrane: effects of arsenic concentration

Xiaowei WANG, Wenjun LIU, Weifang MA, Desheng LI,

《环境科学与工程前沿（英文）》 2009年 第3卷 第4期   页码 428-433 doi: 10.1007/s11783-009-0146-9

摘要： A laboratory-scale investigation was performed to study arsenic (As (V)) removal by negatively charged GE-HL nanofiltration (NF) membrane in simulated drinking water. Effects of As (V) concentration (0–200μg·L), pH, and co-ions and counter-ions were investigated. The NF membrane presented good stability, and the rejection rates exceeded 90%. The rejection rates of As (V) decreased with the increase of As (V) concentration, while it increased with the increase of pH (reached 96% at pH 6.75). Moreover, a negative relationship was observed between the co-existing ions of Cl, Na, SO, and Ca and the removal of As (V), in which bivalent ions presented more significant effects than monovalent ions.

关键词： nanofiltration (NF)     rejection rate     co-existing ion     co-ion     counter-ion    

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高效选择性PVDF中空纤维膜设计及除铯研究 Article

丁士元, 张利兰, 李阳, 候立安

《工程（英文）》 2019年 第5卷 第5期   页码 865-871 doi: 10.1016/j.eng.2019.07.021

摘要：

本研究通过一种简单有效的接枝方法成功制备了亚铁氰化铜/二氧化硅/聚偏氟乙烯（CuFC/SiO2/PVDF）中空纤维膜。PVDF中空纤维膜通过SiO2中间层将CuFC纳米颗粒固定以去除Cs。分别通过扫描电子显微镜和X射线能谱仪分析了改性膜表面形貌和化学组成。3层CuFC和0.5% SiO2负载制备的CuFC/SiO2/PVDF膜具有非常高的膜渗透通量（49 L·m-2·h-1·bar-1）和Cs截留率（99.82%），且pH（4~10）的变化对Cs的去除率影响较小。改性膜可以通过NH4NO3进行多次有效再生。在1 mmol·L–1的共存竞争离子（K+和Na+）影响下，改性膜仍保持较高的除Cs效率（8 h分别为76.25%和88.67%），展现出对Cs的选择去除性。特别地， CuFC/SiO2/PVDF膜在处理含低浓度Cs（100 μg·L–1）的天然地表水和模拟水体时表现出非常优异的去除率（>90%）。因此，CuFC/SiO2/PVDF膜具有处理受Cs污染的放射性废水的工程应用潜力。

关键词： 铯去除     膜改性     亚铁氰化铜     聚偏氟乙烯    

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标题 作者 时间 类型 操作

Preparation and properties of hollow fibre nanofiltration membrane with continuous coffee-ring structure

Xiuzhen Wei, Xufeng Xu, Yi Chen, Qian Zhang, Lu Liu, Ruiyuan Yang, Jinyuan Chen, Bosheng Lv

期刊论文

Role of membrane and compound properties in affecting the rejection of pharmaceuticals by different RO/NF membranes

Yang-ying Zhao, Fan-xin Kong, Zhi Wang, Hong-wei Yang, Xiao-mao Wang, Yuefeng F. Xie, T. David Waite

期刊论文

Preparation and characterization of EVAL hollow fiber membrane adsorbents filled with cation exchange

Fengli ZHANG, Yuzhong ZHANG, Hong LI, Guangfen LI,

期刊论文

Energy reduction of a submerged membrane bioreactor using a polytetrafluoroethylene (PTFE) hollow-fibermembrane

Taro Miyoshi, Thanh Phong Nguyen, Terumi Tsumuraya, Hiromu Tanaka, Toru Morita, Hiroki Itokawa, Toshikazu Hashimoto

期刊论文

Filtration ability of hollow fiber membrane for production of magnesium ammonium phosphate crystals by

H. Watamura, H. Marukawa, I. Hirasawa

期刊论文

Cell carrier function of hollow-fiber membrane in rotating wall vessel bioreactor

SONG Kedong, LIU Tianqing, ZHAO Hu, LI Xiangqin, MA Xuehu, CUI Zhanfeng

期刊论文

Effects of baffles on separation of aqueous ethanol solution with hollow fibers

Zhihong YANG, Guoliang ZHANG, Lan LIN, Danping REN, Qin MENG, Hongzi ZHANG

期刊论文

我国中空纤维膜技术与产业发展战略研究

肖长发,何本桥,武春瑞,龚耿浩,蒋士成

期刊论文

PDMS中空纤维渗透汽化膜处理含盐有机废水

李俊俊,顾瑾,孙余凭,张林,雷乐成

期刊论文

高强度纤维的低成本化开发新路

回显权

期刊论文

Pilot study for the treatment of sodium and fluoride-contaminated groundwater by using high-pressure membrane

Xiaomao WANG,Hongwei YANG,Zhenyu LI,Shaoxia YANG,Yuefeng XIE

期刊论文

用于储能设备的一种新型高导电性和高选择性质子交换膜

Kang Huang, Shuhao Lin, Yu Xia, Yongsheng Xia, Feiyan Mu, Yuqin Lu, Hongyan Cao, Yixing Wang, Weihong Xing, Zhi Xu

期刊论文

陶瓷中空纤维内表面制备聚二甲基硅氧烷复合膜——从单通道到多通道

董孜业, 朱海鹏, 杭颖婷, 刘公平, 金万勤

期刊论文

Arsenic (V) removal from groundwater by GE-HL nanofiltration membrane: effects of arsenic concentration

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