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1)  NF270 nanofiltration membrane
纳滤膜NF270
2)  nanofiltration membranes
纳滤膜
1.
Rejection characteristics of aliphatic and heterocyclic organisms by nanofiltration membranes;
纳滤膜对脂肪族及杂环有机物的截留特性
2.
Studies on rejection of phenols in water by nanofiltration membranes and quantitative structure-property relationships;
纳滤膜对水中酚类物质的截留率及其定量结构关系的研究
3.
In this paper,mothe liquor is condensed by SelROTM resistant medium nanofiltration membranes produced by koch company.
采用KOCH公司SelROTM耐溶媒纳滤膜浓缩回收6-APA母液,将浓缩液重结晶,可获得6-氨基青霉烷酸(6-APA),根据检验结果,6-氨基青霉烷酸符合厂订标准,收率可以提高2%~3%,效益十分可观,应用前景十分广阔。
3)  nanofiltration
纳滤膜
1.
Application of nanofiltration in treatment of dyeing wastewater;
纳滤膜在印染废水处理中的应用研究
2.
The separation of mixed-electrolyte solutions with nanofiltration membranes was investigated by the combination of the extended Nernst-Planck equation, Donnan equilibrium model and the Poisson-Boltzmann equation.
假定纳滤膜具有狭缝状孔,使用纯水透过系数、膜孔径及膜表面电势来表征纳滤膜的分离特征,用流体力学半径和无限稀释扩散系数表征了离子特性。
4)  nanofiltration membrane
纳滤膜
1.
Study on the appliation of nanofiltration membrane separate technology in coal mining water treatment;
纳滤膜分离技术在矿井水处理中的研究
2.
Preparation and influence factors of aromatic polyamide nanofiltration membrane;
芳香聚酰胺纳滤膜的制备及影响因素
3.
Reflection coefficient of nanofiltration membranes in single electrolyte solution;
单组分电解质溶液中纳滤膜的反射系数
5)  NF membrane
纳滤膜
1.
Using municipal tap water as the raw water and the NF membrane as the main process to produce direct drinking water,the removal effects of turbidity,trace organic pollutants,endocrine disrupting chemicals(EDCs) and inorganic ions were studied.
以市政自来水为原水、纳滤膜为主体工艺生产直饮水,考察了纳滤膜对原水浊度、微量有机污染物、内分泌干扰物及无机离子的去除效果。
2.
Two sets of NF membranes with different desalination ratio were used as the main process to produce direct drinking water,and the removal effect of inorganic ions was investigated.
采用纳滤作为主体工艺生产直饮水,考察了两组标准脱盐率不同的纳滤膜对各种无机离子的去除效果。
3.
In this paper, a comprehensive literature review are reported, targeting the physical-chemical characteristics of NF membrane affecting separation and fouling, including pore size, porosity, surface morphology (measured as roughness), surface charge (measured as zeta potential), and hydrophobicity/hydrophilicity (measured as contact angle), et al.
针对纳滤膜孔径、孔隙率、粗糙度、表面电荷、亲疏水性等自身物化特征对膜分离特征及膜污染的影响作了综述,同时阐述了纳滤过程中,操作条件、溶液物化特征、膜污染等因素对膜物化特征的影响,对提高纳滤膜性能,进行合理的膜改性,减轻膜污染具有重要意义。
6)  composite nanofiltration membrane
复合纳滤膜
1.
A study on the deep treatment of reclaimed water with the composite nanofiltration membrane of carboxymethyl chitin and polysulfone;
羧甲基甲壳素/聚砜复合纳滤膜对中水的深度处理研究
2.
Study of chitin-Na/polyacrylonitrile(PAN) composite nanofiltration membrane;
甲壳素/聚丙烯腈复合纳滤膜的制备与截留性能研究
3.
Study on PA/PVDF hollow fiber composite nanofiltration membrane (Ⅱ) The performance characterization of composite NF membrane;
PA/PVDF中空纤维复合纳滤膜的研究 (Ⅱ)复合纳滤膜性能表征
补充资料:纳滤

纳滤 ( nf,nanofiltration)是一种介于反渗透和超滤之间的压力驱动膜分离过程,纳滤膜的孔径范围在几个纳米左右。与其他压力驱动型膜分离过程相比,出现较晚。它的出现可追溯到70年代末j.e. cadotte的ns-3 0 0膜的研究,之后,纳滤发展得很快,膜组器于80年代中期商品化。纳滤膜大多从反渗透膜衍化而来,如ca、cta膜、芳族聚酰胺复合膜和磺化聚醚砜膜等。但与反渗透相比,其操作压力更低,因此纳滤又被称作“低压反渗透”或“疏松反渗透”( loose ro )。

纳滤分离作为一项新型的膜分离技术,技术原理近似机械筛分。但是纳滤膜本体带有电荷性。这是它在很低压力下仍具有较高脱盐性能和截留分子量为数百的膜也可脱除无机盐的重要原因。

纳滤分离愈来愈广泛地应用于电子、食品和医药等行业,诸如超纯水制备、果汁高度浓缩、多肽和氨基酸分离、抗生素浓缩与纯化、乳清蛋白浓缩、纳滤膜-生化反应器耦合等实际分离过程中。与超滤或反渗透相比,纳滤过程对单价离子和分子量低于200的有机物截留较差,而对二价或多价离子及分子量介于200~500之间的有机物有较高脱除率, 基于这一特性,纳滤过程主要应用于水的软化、净化以及相对分子质量在百级的物质的分离、分级和浓缩(如染料、抗生素、多肽、多醣等化工和生物工程产物的分级和浓缩)、脱色和去异味等。主要用于饮用水中脱除ca、mg离子等硬度成分、三卤甲烷中间体、异味、色度、农药、合成洗涤剂,可溶性有机物,及蒸发残留物质。

随着对环境保护和资源综合利用认识的不断提高,人们希望在治理废水的同时实现有价物质的回收,比如:大豆乳清废液中含有1%左右的低聚糖和少量的盐,亚硫酸盐法制备化纤浆和造纸浆过程出现的亚硫酸钙废液中含有2%~2.5%的六碳糖和五碳糖,制糖工业中出现的废糖蜜中含有少量的盐等等。

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