Hoʻohana pinepine ʻia ka kānana one quartz e like me ka reverse osmosis lako a me ka ultrafiltration mea hana pretreatment, ka mea nui no ka sediment, colloids, metala ions a me nā mea kūlohelohe no ka interception, adsorption. ʻO nā mea kānana maʻamau he quartz one, carbon activated, anthracite, manganese one a pēlā aku. Hoʻohana nui ʻia i ka hoʻoulu ʻana i ka mahiʻai, ʻoihana kemika, petroleum, metallurgy, mining a me nā ʻoihana ʻē aʻe.