filter bed

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The filter bed is rinsed with the feed liquor for 3.5min.
冲洗3.;5min;纳污滤层即可复原。
Backwashing is one of the methods to maintain a filter bed clean.
反冲洗是保持滤床清洁的方法之一。
The functions of the hydrophyte filter bed(HFB) for improving source water quality were surveyed in terms of microcystin and trace organic pollutants.
从对藻毒素和微量有机污染物的去除方面考察了水生植物滤床(HFB)在改善源水水质方面的效果。
Filter bed should be exposurd as less as possible because alternation of exposure and immersion is disbennifit to the penetrability of filter bed.
依据水质资料分析了水源水质安全保障。
The result of removal of CODCr and NH3-N from urban sewage was experimentally investigated by using biological aerated filter bed with double filter material of slag and zeolite.
研究炉渣-沸石双层滤料曝气生物滤池处理城市污水中CODCr和NH3-N的去除效果,试验结果表明:滤池中两种滤料显示出良好的互补性,滤池对CODCr和NH3-N的去除率稳定;