This paper expounds the adaptibility of coarse sand filter with simultaneous air and water backwash to tertiary filtration plant.

阐述了粗石英砂气水同时冲洗滤池，在污水深度处理中的适用性。

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Air filter equipment, air cooling tower, water cooling tower, molecular sieve absorber and fractionating tower in air seoaration plant can be manufactured in the company.

整套空分装置中的空气过滤器、空气冷却塔、水冷却塔、分子筛吸附器、分馏塔等系统设备可自行完成制造；

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The amount and size distribution of particles in the effluent from a sand filter or from activated carbon filtration in a drinking water treatment plant were investigated.

结合水厂实际水处理工艺及活性炭深度处理装置，试验研究砂滤池和活性炭滤柱出水中颗粒物数量变化及粒径分布规律。

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