在水处理中,净化这个词,通常包括凝聚和沉淀过程,而严格地来说,应包括过滤过程。这里该词是一种广义的概念。当前,为了除去水中的悬浮固体,通常使用明矾,或者某种铁盐进行凝聚,接着进行沉淀和过滤。但是,这些过程是相当复杂的。特别是水中的悬浮物和溶解性固体,即使从同一地方采集来的水样,也尽不相同,何况,在进入地面水中新物质正在不断增加的今天呢,在这变化极大的情况下,这些过程就显得更加复杂化了。 In water treatment, the term decontamination usually includes agglomeration and precipitation processes, and strictly speaking, it should include a filtration process. The word here is a broad concept. Currently, in order to remove suspended solids in water, alum, or some kind of iron salt, is usually used for agglomeration followed by precipitation and filtration. However, these processes are quite complicated. In particular, suspended solids and dissolved solids in water are not the same even if they are collected from the same place. What’s more, new substances entering the ground water are increasing today, and in such a highly variable situation, These processes become more complicated.