The result shows that selection of suitable contact reaction time, filter bed height, and filtering velocity may result in efficient removal of lead and mercury.
结果表明，选择合理的接触反应时间、滤层高度和滤速能有效去除微污染原水中的铅和汞。
In the KDF filter, effect of contact reaction time, filter bed height, and filtering velocity on lead and mercury removal was studied.
以KDF为滤料，研究了接触反应时间、滤层高度和滤速对铅和汞去除效果的影响。
The influence of Zeolite size, filter velocity and contact time on removing -nitrogen has been discussed too.
同时．考察了粒径、滤速等对沸石除氨氮效果的影响。
The influence of Zeolite size, filter velocity and contact time on removing -nitrogen has been discussed too.
同时．考察了粒径、滤速等对沸石除氨氮效果的影响。
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