非溢流排水滤池是一种在反冲洗时不溢流排水的双层滤料滤池。
A new non-overflow dual-layer filter that is build without simultaneous overflow at time of backwashing and widely applied abroad is presented in this paper.
本文通过对双层滤料滤池在运行中的技术管理实践，提出了相应的运行管理经验。
This paper puts forward operation management experience according to the practice of technique management of twolayer filtration pool.
首次提出了新型煤——砂双层均匀滤料滤池。
A new type of uniform dual media anthracite - sand filter is firstly proposed in this paper.
无烟煤滤料同石英砂滤料配合使用是我国目前推广的双层快速滤池和三层滤池、滤罐过滤的最佳材料。
Anthracite filter used in conjunction with quartz sand is our current promotion fast filter and three-filter, the best material canister filter.
颗粒活性炭-石英砂双层滤料组合要优于石英砂单层滤料和无烟煤-石英砂双层滤料，加氯水反冲洗不利于生物滤池的运行。
The granule active carbon (GAC) -sand media is superior to sand media and anthracite-sand media, and the backwashing water with residual chlorine will do harm to the operation of the biofiltration.
颗粒活性炭-石英砂双层滤料组合要优于石英砂单层滤料和无烟煤-石英砂双层滤料，加氯水反冲洗不利于生物滤池的运行。
The granule active carbon (GAC) -sand media is superior to sand media and anthracite-sand media, and the backwashing water with residual chlorine will do harm to the operation of the biofiltration.
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