The solid particles were filtered from the solution.
固体颗粒从溶液中过滤出来。
《新英汉大辞典》
2
Each of the membrane technologies is essentially a filtration process in which contaminant ions are filtered from solution using a membrane with very small water passages.
这些膜技术本质上都是一个过滤程序，就是用一个有非常细小水通道的膜片把污染物离子从溶液里过滤掉。
3
To help describe how you can improve the process, Figure 1 shows a typical spam filtering solution where the e-mail is filtered as it comes in, and the e-mail is delivered into individual mailboxes.