Control of runoff and retention of diffuse P-pollutants by sink landscape structures of agricultural watershed;
农业流域“汇”型景观结构对径流调控及磷污染物截留作用的研究
Retention of allochthonous nutrients by ecotones or Baiyangdian Lake;
白洋淀水陆交错带对陆源营养物质的截留作用初步研究
Study on Retention and Purification Effect of N and P in Pond Wetlands;
水塘湿地截留和净化农业面源污染物特性研究
Numeric study on single rectangular fiber interception efficiency;
单一矩形纤维截留效率的数值研究
New Model of Forest Canopy Interception to Rainfall on Watershed Stored-full Runoff Theory;
基于流域蓄满产流理论的林冠截留降雨新模型
An experiment and model construction of rainfall interception by Picea koraiensis.;
云杉截留降雨实验与模型
The rejection behavior of dyeing wastewater against polymide/ polysulfone nanofiltration hollow fiber composite membrane is experimentally investigated.
结果表明,纳滤膜对染料有很好的截留率,其截留过程中筛分效应和荷电效应起主导作用;废水中染料浓度和无机盐浓度对纳滤膜截留性能有显著的影响;0。
The results indicated that when filtrating solutions with hardness of 300 mg·L-1(calculated as CaCO3),the NF90 membrane was suitable for water softening as it had high flux and Ca2+ rejections.
L-1(以CaCO3计)的硬水时,NF90膜有较高的通量和Ca2+截留率,适用于水质软化过程。
The rejection behavior of dyestuff solution against cellulose acetate nanofiltration membrane was experimentally investigated.
考察了醋酸纤维素纳滤膜对染料溶液的分离性能,纳滤膜对染料溶液有很好的分离效果,其分离过程中筛分起主导作用;试验不同孔径的醋酸纤维素纳滤膜对萘系衍生物,以及不同材料的纳滤膜对相同分子量有机物的截留效果,其分离性能是由有机物性质和范德华引力共同作用的;分析磺化聚醚砜膜对有机物的截留和染料与膜材料界面力数据,结果表明纳滤膜分离性能是由膜、溶液和溶质三者共同决定的。
This paper reviewed the past researches of nitrogen removal of riparian buffers,summarized the nitrogen removal mechanisms in riparian buffers and also the factors affecting removal efficiency.
总结河岸缓冲区中氮素截留的主要机制、影响因素及缓冲区的管理原则。
The retention rate of 1.
0g/L的Na2SO4截留率可达92。
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。
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。