1) rejection
[英][ri'dʒekʃən] [美][rɪ'dʒɛkʃən]
截留率
1.
Experimental studies on transport flux and rejection for nanofiltration in organic solvents;
有机溶剂中纳滤膜通量和截留率的研究
2.
The effects of temperature,pressure,feed rate and mass concentration of Ni~(2+) on rejection rate of nickel and permeate flow rate are discussed.
讨论了试验温度、操作压力、进料流率和溶液中Ni2+的质量浓度对Ni2+的质量截留率和透过流率的影响。
3.
The effect of solute concentration, molecular charge and solvents on membrane performance (flux and rejection) in organic solvents was investigated.
研究了浓度、电荷和溶剂对膜通量和溶质截留率的影响。
2) retention
[英][rɪ'tenʃn] [美][rɪ'tɛnʃən]
截留率
1.
DMAc was selected as solvent and Polyvinylpyrrolidone (PVP K90) was selected as pore forming additive, the influence of Polyvinylpyrrolidone concentration on the shrinkage ratio, the pure water flux, the retention to BSA and the membrane structure of Poly(vinylidene fluoride)/polyethersulfone Blend Membranes were investigated.
采用二甲基乙酰胺为溶剂,聚乙烯吡咯烷酮(PVPK90)为致孔性添加剂,研究了PVP的浓度对聚偏氟乙烯/聚醚砜(PVDF/PES)共混膜的收缩率、纯水通量、牛血清蛋白(BSA)截留率和膜结构的影响。
2.
With dimethylacetamide as solvent and poly(vinylpyrrolidone) as pore forming additive,the effect of PES mass fraction on shrinkage ratio,pure water flux,retention to BSA and membrane structure of PVDF/PES blend membrane was studied.
用与聚醚砜共混的方法来改善聚偏氟乙烯膜的抗收缩性能,以二甲基乙酰胺作溶剂,聚乙烯吡咯烷酮为添加剂,研究了聚醚砜(PES)质量分数对聚偏氟乙烯/聚醚砜共混膜的收缩率、水通量、截留率及形态结构的影响。
3.
In addition with blending PVC,the composite membrane forming speed and microporous structure,pure water flux and retention experiment of egg albumin solution of PU/PVC/SiO2 membrane were improved significantly.
结果显示:SiO2的加入,可改善PU杂化膜的微孔结构并优化膜的性能,在该体系中加入PVC和PU共混,可以提高成膜速度及微孔结构,水通量和截留率得到了明显的提高。
3) rejection rate
截留率
1.
The results indicate that the rejection rates of four different kinds of phenolic estrogens in water by the nanofiltration membrane can reach above 90%.
结果表明,纳滤技术是去除水中微量酚类雌激素的有效方法,纳滤膜对4种不同酚类雌激素的截留率均大于90%;在不调节原水pH值及离子强度的条件下,截留率由高到低依次为五氯酚、4-壬基酚、双酚A、2,4-二氯苯酚;影响膜过滤性能的主要因素是操作压力、离子强度和pH值,原水中酚类雌激素浓度对膜过滤性能的影响不大;膜过滤的最佳条件为:操作压力为0。
2.
The association of pore size and rejection rate was analyzed; the results will guide development of industrialized ceramic ultrafiltr.
以液-液排除法测定工业化陶瓷超滤膜的孔径及孔径分布,比较了两种渗透体系对测定结果的影响;用已知分子量标准物质考察了不同膜的截留行为,获得了各膜的切割分子量值,并分析了截留率与孔径的对应关系,为工业化陶瓷膜的开发提供依据。
3.
The rejection rate was measured and compared with the pore size and pore size distribution.
本文对工业化多通道陶瓷超滤膜进行了研究 ,以异丁醇 -蒸馏水体系用液 -液排除法测定了超滤膜的孔径及孔径分布 ,对同一膜管及体系 ,进行了重复性实验 ,测定了膜的截留率 ,比较了截留率与孔径及孔径分布的关系 ,讨论了操作条件对截留率的影响 ,为工业化膜的制备及选取提供指
4) retention rate
截留率
1.
The retention rate of 1.
0g/L的Na2SO4截留率可达92。
2.
The effects of operation pressure,temperature,volume and initial concentration of fermentation broth on the membrane velocity and the retention rates of protein and L-calcium lactate were investigated,and the optimal processing conditions were determined.
采用超滤技术从L-乳酸发酵液中分离去除蛋白,研究了超滤过程中的操作压力、操作温度、超滤液的体积和料液初始浓度等主要因素,对膜通量和发酵液中蛋白质及乳酸钙2种主要组分截留率的影响;并确立了采用聚砜膜去除乳酸中蛋白工艺的最佳参数,在此条件下,蛋白质去除率达到91。
3.
The results showed that the retention rate of chitosan membranes increased by 83.
采用凝固浴凝胶工艺处理聚氨基葡糖超滤膜,实验结果表明,经凝固浴处理后,聚氨基葡糖超滤膜对酸性红B溶液的截留率提高了83。
5) retention ratio
截留率
1.
The flux and retention ratio characteristics for mucopolysaccharides through PES ultrafiltra-tion membrane with a relative molecular mass cut-off of 20 000 under electric field, acoustic field and acoustoelectric fields were investigated.
研究了以截留相对分子质量为20 000的聚砜超滤膜,在不同外场(无物理场、存在电场、存在声场及存在声电场)的条件下,强化超滤鲨鱼鳍软骨粘多糖的膜通量和截留率的变化情况。
2.
The comparison between the methods to determine the retention ratio of the ultrafiltration membrane using PEG,Egg Albumin and serum albumin of ox was reported and the feasibility of these methods has been studied in this paper.
结果表明 ,用聚乙二醇法测量膜截留率是不可靠的 ,而应采用卵清蛋白、牛血清白蛋白等球形生物分子作为基准物质。
3.
The results of experiments show that protein retention ratio is higher than 95%, recovery is about 93 9%.
选取适宜大豆分离蛋白生产超滤膜，经超滤浓缩后，蛋白质的截留率高于９５％，蛋白质的回收率达９３。
6) COD rejection ratio
COD截留率
补充资料：截留
| 截留 interception 植物茎叶枝干拦截降水的现象。降雨时，最先落在植物茎叶上的雨滴几乎全部被茎叶枝干表面截留，聚集起离散的水珠，随后水珠相互连接，形成铺盖在枝叶面上的薄水层 ，水层不断增厚，当水层的重力超过枝叶与水之间的附着力时，一部分水向下跌落或沿枝茎流到地面。此后，枝叶上的水分不断被新落下的雨水所代替，只有留存在枝叶上的那部分水，才成为植物截留。降雨停止后，截留的水分耗于蒸发。植物截留量有两部分，一部分是降水过程中从枝叶面蒸发的水量，另一部分是降雨终止时存留在植物枝叶面上的水量，这部分水量，最后也耗于蒸发。截留量的大小与降水量、降雨强度、降雨历时、风、植物种类和枝叶茂密程度有关。在径流形成中，截留是一种损失，据观测试验资料，茂密的植被一年中截留的水量可达年降水量的25％～30％。它减少达到地面的降水量，即减少地面径流。截留量主要通过在树冠、树干 、树下和林间空地分别设置雨量计，观测对比确定。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条