1. Mfundo yogwirira ntchito ya KDF55: Ikagwiritsidwa ntchito m'madzi, pamakhala kusintha kwa mankhwala - kuchepetsa okosijeni. Ma electron amasamutsidwa pakati pa mamolekyu panthawi ya redox reaction. Mwachitsanzo, chlorine yaulere imatha kusinthidwa kukhala zinthu zothandiza monga chloride kudzera mu reaction iyi kenako nkudutsa mu fyuluta. Mofananamo, zitsulo zolemera monga mkuwa, lead ndi mercury zimachitapo kanthu ndikugwa pamwamba pa fyuluta, kuti zithetse bwino madzi.
2. Kugwiritsa ntchito KDF55 pa kutentha kwa madzi (0-100 ℃): Mwachitsanzo, KDF55 sikhudzidwa ndi shawa yamadzi otentha; Mu shawa, simudzakhala pachiwopsezo chachikulu cha chlorine.
3. Kusamba m'mbuyo:Kuthamanga kwa madzi otsukira m'mbuyo kuyenera kukhala kawiri kuposa momwe amayeretsera madzi nthawi zonse, ndipo nthawi yake siyenera kupitirira mphindi 10; Tsukani ndi kutsuka kwa mphindi zitatu; Osachepera kawiri pa sabata. Kutentha kochepa kwa madzi kumatha kuchepetsa kuthamanga kwa madzi otsukira, pomwe kutentha kwambiri kumatha kuchepetsa kuthamanga kwa madzi otsukira.
4. Kuyeretsa: Ngati zinthu zosefera sizinatsukidwe kumbuyo kwa nthawi yayitali kapena sizikugwiritsidwa ntchito, zomwe zimapangitsa kuti zikhale zolimba, kutsuka kumbuyo kungachitike, ndipo zinthu zosefera zachitsulo ziyenera kutsukidwa ndi hydrochloric acid. Sungunulani hydrochloric acid yokhazikika m'madzi kuti mupeze asidi wokonzeka wokhala ndi PH yoposa 2.5, muyitsanulire mu zinthu zosefera zachitsulo kuti muchotse zinthu zosefera, ndikutsuka kumbuyo kwa mphindi 20; Mpaka PH ya madzi otuluka ifanane ndi ya madzi otuluka.