Kazhinji, iyo sefa element inoda kutsiviwa mune anotevera mamiriro:

1. Chinhu chesefa chakaremara kana kukuvadzwa;

2. Kana iyo chaiyo sefa yefiltration yadzikira uye isingakwanise kuzadzisa effluent zvinodiwa.

3. Kubuda kwemvura yehurongwa hakuenderane nechiyero.

Zvikonzero zvinowanzoitika zvekudzokororwa kudzoreredzwa kwesefa cartridges ndeizvi:;

1. Hunhu hwemvura mbishi hahuna kugadzikana uye hunochinja-chinja nguva nenguva, zvichikonzera kuwanda kwakawanda kwechinhu chinopinda musefa uye kupfupisa kutenderera.

2. Iko kusati kwaitwa kuvhiyiwa kushanda kwakashata, uye flocculants, scale inhibitors, nezvimwewo zvakawedzerwa kune pre-kurapa hazvienderane nemumwe kana kuti hazvifananidzi nzvimbo yemvura, zvichiita zvinhu zvinonamatira zvinonamatira pamusoro pesefa. element, zvichikonzera kusefa kunoshanda kweiyo sefa element.

3. Hunhu hwesefa husina kunaka, uye mukati nekunze pore saizi yehurombo hwemhando yekusefa chinhu chakafanana.

Muchokwadi, iyo yekunze layer chete ine mhedzisiro, nepo saizi yekusefa yeyakanaka sefa element inoderedzwa zvishoma nezvishoma kubva kunze kuenda mukati. Iyo yemukati layer yekusefa kurongeka ndeye 5 ± 0.5 µ m, uye huwandu hwezvinosvibisa hwakakura uye hukuru, Kushandiswa kwenguva refu kunogona kuve nechokwadi chemhando yemvura inoyerera.