MWCO

Meanwhile , we also carry out experiments on the relevant contributions of membrane resistance during ultrafiltration , and draw the conclusion that MWCO ( molecular weight cutoff ) and the membrane materials play important roles in affecting the contributions of membrane resistance .

同时论文还进行了超滤过程中膜相对阻力分布的试验，得出截留分子量和膜材料是影响膜阻力分布的重要因素。

The membrane MWCO has little influence on the organic removal efficiency of MBR process .

截留分子量对好氧膜生物反应器有机物去除性能影响较小；

The ultrafiltration process was studied by using PES membrane with 30 000 MWCO .

对超滤工艺进行了研究，采用截留相对分子质量为30000的聚醚砜（PES）膜进行超滤；

MWCO of membrane used in ultrafiltration of penicillin fermentation broth

青霉素发酵液超滤用膜的切割相对分子质量

The study finds that a series of nanofiltration membranes with different MWCO can be obtained by controlling the reaction conditions .

通过控制反应条件可得到一系列具有不同截留分子量的中空纤维复合纳滤膜。

The concentration of crude enzyme liquids was carried out using one ultrafiltration membrane reactor with MWCO 2 kDa .

采用超滤法，以截留分子量2kDa的超滤膜对发酵得到的粗酶液进行浓缩。

With the decrease of MWCO , declines occurred in all chemical composition of jujube juice content although at different rates . 3 .

随着截留分子量的减小，红枣汁中的营养成分的含量均出现不同程度的下降。

On the contrary , the intrinsic resistance of membrane would dominate the filtration process when MWCO of membrane was less than 10 kDa .

当膜的截留分子量≤10kDa时，过滤阻力主要由膜本身固有的阻力决定，膜污染影响较小。

Ultrafiltation of wheat straw black liquor of different solid content by using MWCO 1K , 5K , 10K regenerated cellulose membrane was studied .

利用截留相对分子质量分别为1K、5K、10K的改良纤维素膜对不同浓度的麦草浆黑液进行了超滤研究。

Nanofiltration membranes are widely used for two features : first , they have intermediate molecular weight cut-offs ( MWCO ) between those of reverse-osmosis and ultrafiltration membranes ;

纳滤膜作为20世纪80年代出现的一种新型膜，由于具有两大显著特点而得以广泛应用：一是其截留分子量介于反渗透膜和超滤膜之间，约为200-2000；

Effect of molar weight cut-off ( MWCO ) of ultrafiltration ( UF ) membranes on the processing characteristic and the nutrition value of litchi honey was investigated in this paper .

本文研究了不同分子截留量（MWCO）的超滤膜对荔枝蜜的加工特性和营养成分的影响。

The research is composed of three aspects : After a pretreatment of high speed centrifugation , a UF membrane with a MWCO value of 45000 is used to separate GABA fermentation broth .

在高速离心的基础上，采用截留相对分子质量45000的超滤膜对GABA发酵液进行超滤分离。

During the long-term operation , the filtration resistances would be determined by fouling mainly composed of pore blocking and gel layer formation , when MWCO of membrane was larger than 10 kDa .

在长期过滤的过程中，截留分子量>10kDa的超滤膜的过滤阻力受到膜污染的控制，膜孔堵塞和膜面形成凝胶层是造成膜污染的主要原因；

In the operational mode of dead-end filtration and without backwash , experiments of seawater fraction using UF membranes with different MWCO ( 67,50 , 30,6 kDa ) were also carried out .

在死端、无反冲运行模式下，采用相同材质和内径、不同截留分子量（67、50、30、6kDa）的超滤膜进行海水分级实验。

Study on small molecular weight cut-off ( MWCO ) blend ultrafiltration membrane (ⅲ) & Post-treatment and comparison of chemical stability between PVDF UF membrane and PVDF / PVAc blend UF membrane

小截留分子量共混超滤膜的研究（Ⅲ）&PVDF与PVAc共混超滤膜的后处理及化学稳定性比较

A single membrane material has been unable to meet the request of practical application of different molecular weight cut-off ( MWCO ), chemical stability , mechanical strength and resistance to pollution , and the need for comprehensive performance .

实际应用中对膜具有不同截留分子量、化学稳定性、机械强度和耐污染等综合性能的要求越来越高，单一的膜材料己很难满足。

Ultrafiltration was applied to concentrate and purify polysaccharides of pumpkin . Results showed the optimal conditions were as follows : MWCO 30 KDa ultrafiltration membrane , 0.1 MPa , 25 ℃ .

研究了超滤技术在南瓜多糖浓缩纯化过程中的应用，发现南瓜多糖的最佳超滤条件是：采用截留分子量30KDa的超滤膜，超滤压力为0.100MPa，超滤温度为25℃。

Normally , the molecular mass cutoff ( MWCO ) range is 200 ~ 1 000 , and its relative pore size is 13 nm , so this membrane is called as NF . QUALITY Quality .

通常情况下，膜的截留相对分子质量界限为200～1000，与截留相对分子质量相对应的膜孔径为1～3nm，故将这类膜称为纳滤膜。

Then the hydrolysate was treated with ultrafiltration membrane ( MWCO is 6.0 × 10 ~ 4 ), and the purity and the yield of RNA was 72.1 % and 0.42 % , respectively .

酶解液经截留相对分子质量为6.0×104的超滤膜过滤后，核糖核酸的纯度和得率分别是72.1%和0.42%。

Ultrafiltration membranes with different MWCO and material was used to treat wastewater from wheat gluten and starch production , the permeation flux , membrane attenuation coefficient , rejection rate of protein , permeation rate of reduce sugar of them were studied through the test .

通过实验研究了不同截留相对分子质量和膜材料的超滤膜在超滤小麦谷朊粉及淀粉生产废水时的渗透通量、膜衰减系数、蛋白质截留率、还原糖透过率。