Zolimba zoyimitsidwa, monga momwe dzinalo limatanthawuzira, ndi tinthu tating'onoting'ono toyandama m'madzi momasuka, nthawi zambiri pakati pa 0,1 microns ndi 100 microns mu kukula. Zimaphatikizapo koma sizimangokhala ndi silt, dongo, algae, tizilombo tating'onoting'ono, ma molekyulu apamwamba a organic, etc., kupanga chithunzi chovuta cha m'madzi apansi pa madzi ...
Werengani zambiri