1) intercepting rate of pollutant
污染物截留率
1.
The intercepting rate of pollutants of combined intercepting sewer during rainfall is strongly affected by Qmax/Qdr ratio and Qave/Qdr ratio.
截流式合流制排水管的污染物截留率取决于雨水最大流量与旱流污水流量的比值(Qmax/Qdr)及雨水平均流量与旱流污水流量的比值(Qave/Qdr)。
2) contaminant retention
污染物滞留<液>
3) sludge retention
污泥截留
4) residue pollution of mulching plastic film
残留污染
1.
Present situation of residue pollution of mulching plastic film and controlling measures;
农用地膜残留污染的现状与防治
5) 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。
6) 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。
补充资料：污染
分子式：
CAS号：
性质：现今绝大多数发酵过程为纯种培养过程，即在培养过程中只允许一种微生物生长，若有其他种微生物窜入培养液中生长则叫污染，也叫染菌。发酵过程被杂菌污染后，由于杂菌生长会与生产菌种争夺营养和溶氧，杂菌所分泌的代谢物不但会影响目标产物的纯度还可能降低或升高pH值，还可能对生产菌种起抑制作用，大大干扰生产菌的生长，甚至使生产菌死亡，对发酵造成极大的危害。
CAS号：
性质：现今绝大多数发酵过程为纯种培养过程，即在培养过程中只允许一种微生物生长，若有其他种微生物窜入培养液中生长则叫污染，也叫染菌。发酵过程被杂菌污染后，由于杂菌生长会与生产菌种争夺营养和溶氧，杂菌所分泌的代谢物不但会影响目标产物的纯度还可能降低或升高pH值，还可能对生产菌种起抑制作用，大大干扰生产菌的生长，甚至使生产菌死亡，对发酵造成极大的危害。
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