复合滤料层 composite layer of filtering materials
双层滤料滤池 double-layer filter ; double-bed filter ; dual-media filter
双层滤料过滤器 double layer filter
多层滤料滤池 Multi-media filter ; Filter multi-media
煤砂双层滤料滤池 coal-sand dual media filter
三层滤料滤池 triple media filter
多层滤料过滤器 Multi-layer filter
双层滤料池 Filter dual-media
该投加点面临的主要问题是活性炭穿透滤料层以及水头损失过快增长导致滤池过滤周期的大幅度缩短。
The major problems in this technology are PAC penetrating filter material layer and the great shorten of the filter cycle owing to the growth rate of filter head loss is so quickly.
试验发现，短纤维束滤料滤层的孔隙率沿过滤方向由大到小，为变孔隙滤层。
Experiments showed decreased porosity of the filter bed along the filtering direction.
最后，对混凝实验、自由沉淀实验、絮凝沉淀实验、成层沉淀实验、压缩沉淀实验、滤料筛分实验、过滤及反冲洗实验进行了模拟开发。
Lastly, this thesis paper develops MATLAB GUI of coagulation and flocculation experiment, four experiments of sedimentation, filter material sieve, filter experiment and backwash experiment.
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