Ka'idar aiki na tacewar yumbura ya dogara ne akan tsarin microporous na membranes yumbu. Lokacin da ruwan da za a tace ya wuce ta wani matsa lamba, daban-daban abubuwan da ke cikin kayan ruwa za a katse su a gefe ɗaya na farfajiyar yumbura, yayin da ruwa mai tsabta zai ratsa zuwa wancan gefen saman membrane, don haka ya sami rabuwar ruwa. da tacewa. Fim ɗin yumbu ya ƙunshi ƙananan duwatsu marasa ƙima kamar ƙwayoyin yumbu, waɗanda ke haifar da pores a tsakanin su. Girman pore shine kawai 20-100 nanometers, wanda ke ba shi damar raba abubuwa masu girma dabam na kwayoyin halitta yadda ya kamata.

A cikin tsarin tacewa na yumbu, yawanci akwai na'ura mai juyi wanda ya ƙunshi nau'ikan faranti da yawa na yumbu, da kuma abubuwan da aka haɗa kamar shugaban rarraba, agitator, scraper, da sauransu. Lokacin da na'urar tana aiki, za a nutsar da farantin tacewa ƙarƙashin ƙasa. da ruwa matakin na slurry a cikin tanki, forming Layer na m barbashi tara. Lokacin da farantin tacewa ya bar matakin ruwa na slurry, ƙaƙƙarfan barbashi za su samar da kek ɗin tacewa kuma su ci gaba da bushewa a ƙarƙashin injin, ƙara bushewa da kek ɗin tacewa. Daga baya, rotor zai juya zuwa wurin da aka sanye da abin gogewa don cire kek ɗin tacewa kuma mai ɗaukar bel ɗin zai ɗauke shi zuwa wurin da ake so.