“反粒度”过滤技术的研究与应用

RESEARCH AND APPLICATION OF REVERSE SIZE FILTRATION

待滤水从滤床最粗粒径的滤层进，从最细粒径的滤层出的“反粒度”过滤能获得高效优质的过滤效果。早在三十年代国外专家就已先后发表了有关论文，可是长期来这一优越的过滤技术没有在世界上获得普遍的推广应用。笔者长期从事“反粒度”过滤技术的研究，成果已在全国推广应用，取得了明显的经济效益与社会效益。文中论述“反粒度”过滤技术在国内外的研究与应用概况。

Efficient and quality filtration can be obtained by means of reverse size filtration(also neamed reverse filtration) in which water to be filtered is injected from the coarse filter of the base and filtered water effluxes from the fine filter at the top of the filter bed. As early as 1930's papers on this technology were published by foreign experts, but this filtration technology were not found in wide application in the world. The author of this paper has been engaged in the research of reverse-size filtration for eleven years. Our research results have been put into use across China, achieving remarkable economic and sonal effects. In a word, this paper presents a general survey of the research and application of reversesize filtration both at home and abroad.