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快速砂/重力滤砂

329 bytes added, 04:21, 19 October 2017
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{{Language-box|english_link= Rapid sand / gravity filtration | french_link= Coming soon | spanish_link= Coming soon | hindi_link= Coming soon | malayalam_link= Coming soon | tamil_link= Coming soon | swahili_link=coming soon | korean_link= Coming soon | chinese_link=快速砂/重力滤砂 | indonesian_link= Coming soon | japanese_link= Coming soon }}
 
[[Image:Icon_biosand.png|right|80px]]
[[Image:rapid sand filter.jpg|thumb|right|200px|快速砂 / 重力过滤箱. <br>照片: [http://water.me.vccs.edu/concepts/filters.html Types of Filters.]]]
__NOTOC__ <small-title />
快速砂与慢速砂过滤器在很多方面都有所不同，其中最重要的是快速砂有更加高速的滤速以及利用倒流自动清洁的能力。 这两种过滤器的颗粒去除机理也有所不同--快速砂过滤器不使用生物过滤，并且主要依赖于吸附和张力。
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