Some specialists in the world put forward the theory of reverse grain filtration what would be of high filtration efficiency and good water quality comparing to Down-flow filtration.
世界上不少水处理专家认为“反粒度过滤”能克服传统“下向流过滤”的缺点,会取得高效优质的过滤效果。
参考来源 - 粗石英砂滤料上向流过滤机理与应用研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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