Umgaqo wokuhluza wemidiya yokucoca usekwe ikakhulu ekuthinteleni ngokwasemzimbeni, kwi-adsorption, ukujongwa kunye nokungqubana okungaphakathi.
Ukucatshulwa ngokwasemzimbeni kuthetha ukuba amasuntswana amisiweyo emanzini avaleleke ngeepores zemidiya yokucoca kwaye agcinwe kumphezulu okanye ngaphakathi kwimidiya yokucoca. Imidiya yokucoca idla ngokuba nesakhiwo sepore ethile. Xa amanzi ehamba nge-filter layer, amasuntswana amahle ayabanjwa ngenxa yokuba ubukhulu bawo bukhulu kuneepores.
I-Adsorption nayo idlala indima ebalulekileyo kwinkqubo yokucoca. Umphezulu wemidiya yokucoca unomthamo othile we-adsorption, onokuthi ubhengeze into ethile enyibilikayo, i-colloids kunye nobunye ukungcola, ukuze babanjwe kunye nemidiya yokucoca.
Umgaqo wokuhlola ufana nendima ye-sieve. Imithombo yeendaba zokucoca ezinobungakanani bamasuntswana ahlukeneyo aneepores ezinobukhulu obahlukeneyo, ezinokukhusela amasuntswana obungakanani bamasuntswana ahlukeneyo emanzini, zithintele ukungcola okukhulu kwindawo ephezulu yoluhlu lwesihluzi, kwaye ngokuthe ngcembe zingene ukungcola okuncinci kumaleko okucoca.
Ungquzulwano lwe-inertial luthetha ukuba xa amasuntswana okuhamba kwamanzi ane-inertia ethile, xa edibana ne-pores okanye umphezulu we-media media, ayaphambuka kwicala lokuhamba kwamanzi ngenxa ye-inertia, ngaloo ndlela eqhagamshelana ne-media media kunye nokubanjwa.
