脱盐率 meaning in Chinese
desalinization ratio
rate of desalination
Examples
- Practice during the period of four years shows : ( 1 ) settled water pond and three - stage filtration system with mechanical agitation can meet the requitments of reverse - osmosis components to the inlet water quality ; ( 2 ) it must be considered in the design that the demineralization efficiency of reverse - osmosis components will be decreased about 1 % 2 % in every year ; ( 3 ) in normal case , the outlet water from reverse - osmosis equipment shall enter into mixed bed via a decarbonator ; ( 4 ) the output capacity of the mixed bed must have a sufficient surplus , to avoid its influence on the water supply
经4年的实践表明： ( 1 )采用机械搅拌澄清池和三级过滤的系统，可以达到反渗透组件对进水水质的要求； ( 2 )反渗透组件的脱盐率每年约降低1 % 2 % ，在设计中必须考虑； ( 3 )一般情况下，反渗透装置的出水应经过除碳器再送入混床； ( 4 )混床的出力必须有足够的余量，以免影响供水。 - It set up the development of the world recognized high performance nanofiltration composite membrane of aromatic polyamide , on the basis of reviewing the development , the importance in the membrane separation technology , the classification , the fabrication technique and the current development of the research and the application of the nanofiltration membrane . polysulfone was chosen as the material for making the porous substrate because of its excellent compress - to - denseness resistance , its cheap price and its great availability . by fabricating an ultra thin polyamide functional layer on the polysulfone substrate through interfacial polymerization taking piperazine as the monomer in aqueous phase and trimesoyl chloride as the monomer in organic phase , high performance nanofiltration composite membranes of ultra low pressure and ultra high permeating flux were prepared
选择耐压密性能优良，价廉易得的聚砜材料为制备复合膜基膜材料，哌嗪为水相单体，均苯三甲酰氯为有机相单体，通过界面聚合反应在基膜表面形成超薄功能层，制备了超低压高通量聚哌嗪均苯三甲酰胺聚砜纳滤复合膜，以0 . 1 mgso _ 4溶液为测试液，所得高脱盐平板复合膜( )在0 . 4mpa下，脱盐率为96 . 1 ，通量达85 . 2l - It can be concluded that the performance differences between the plate membrane and the hollow fiber membrane can be attribute to difference of the stresses in the membranes when they were under pressure and the difference of the strain caused in the membrane , besides the possible reason that the surface curvature difference between a plate substrate and a hollow fiber one may cause structure difference in the dense functional layer when coating . the stresses in a hollow fiber composite membrane under an outside pressure are quite different from that in a plate one in that they exert on the hollow fiber in both the radial and circular directions , and the compress strain of the hollow fiber is thus much more complex , which may cause the top layer crinkle and a decreased salt rejection
分析认为造成平板复合膜( )和中空纤维复合膜( )性能差异的主要原因，除了平板基膜与中空纤维基膜因表面曲率不同可能引起在涂覆时形成的致密功能层结构上的差异之外，由于中空纤维膜受外压时，膜内部承受的应力形式与平板膜不同，会同时在径向(膜厚度方向)和环向(膜面内方向)两个方向产生压应力，因此，所发生的形变也较为复杂，可能造成表面复合层的起皱或脱落，引起脱盐率下降。