此后到了另一个过滤池，有时是通过沙子或者碳过滤。
After that comes another filtration - sometimes through sand or carbon.
根据膨胀珍珠岩颗粒和水力学特性，可用作水处理过滤池滤料。
Swelled perlite can use as materials of wastewater disposal with its characteristic of granule and waterpower.
所有雨水通过一系列洼地和生物过滤池处理，排出前改善了水质。
All stormwater and rainwater is treated through a series of swales and bio-filtration ponds, improving water quality before discharging.
同时设有专用的管道将天台上的雨水收集到过滤池，从而使城镇缺水的难题得到较好的解决。
Simultaneously, special pipes are arranged for collecting rain water on roofs into the filter tank, so that a problem of urban water shortage can be better solved.
目前，国内大部分水厂的滤池自动反冲洗控制主要通过滤池工作的时间周期来启动反冲洗指令。
At present, time period of filters are mainly used for starting up the backwashing instruction to control filter backwashing automatically in most of domestic water plants.
结果表明：生物滴滤池中形成了由细菌、藻类及原生动物组成的复杂生态系统，而生物过滤池中真菌为优势微生物。
The results indicate that the predominant organism groups were a complicated ecosystem including bacteria, protozoa and algae in the biotrickling filter while it was only fungi in the biofilter.
平流沉淀池的最佳排泥周期为1小时，滤池过滤周期为24小时。
The cycle of sludge discharged out of horizontal sedimentation tank is 1 hour. The cycle of the filter tank is 24 hours.
作者系统地分析了直接回收滤池反冲洗水对絮凝、沉淀和过滤工艺的影响；
The effects of direct filter backwash water recovery on the flocculation, sedimentation and filtration processes are studied.
其特点是采用了板式层和管式层，首先开发和应用了在同一座滤池中以双级滤速过滤的新技术，使滤池的整体过滤效能获得提高。
The total filter efficacy is raised by developing and applying the new technic of double -velocity filtration in one and the same filter.
采用轻质滤料滤池和砂滤池组成的直接过滤系统就能够克服这些不足。
The application of light media filterer can overcomes these shortcomings, especially when direct filtration process is used in treatment plants.
自力式机械滤池是采用一套自力式机械装置来实现自动控制的净水过滤装置。
This self-powered filter tank is a purified water filtering device by using a set of self-powered mechanical device to realize auto-control.
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.
该投加点面临的主要问题是活性炭穿透滤料层以及水头损失过快增长导致滤池过滤周期的大幅度缩短。
The major problems in this technology are PAC penetrating filter material layer and the great shorten of the filter cycle owing to the growth rate of filter head loss is so quickly.
该投加点面临的主要问题是活性炭穿透滤料层以及水头损失过快增长导致滤池过滤周期的大幅度缩短。
The major problems in this technology are PAC penetrating filter material layer and the great shorten of the filter cycle owing to the growth rate of filter head loss is so quickly.
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