Kuchiza madzi otayira: kusankha pakati pa polyaluminium chloride ndi aluminium sulfate

Pa ntchito yokonza madzi otayidwa, polyaluminium chloride (PAC) ndi aluminium sulfate zimagwiritsidwa ntchito kwambiri.ma coagulantsPali kusiyana kwa kapangidwe ka mankhwala a zinthu ziwirizi, zomwe zimapangitsa kuti zigwire ntchito komanso zigwiritsidwe ntchito. M'zaka zaposachedwapa, PAC yakhala ikukondedwa pang'onopang'ono chifukwa cha kugwira ntchito bwino komanso kuthamanga kwake. M'nkhaniyi, tikambirana za kusiyana pakati pa PAC ndi aluminium sulfate pakukonza madzi akumwa kuti tikuthandizeni kusankha bwino.

Choyamba, tiyeni tiphunzire za polyaluminum chloride (PAC). Monga cholumikizira cha polymer chosapangidwa, PAC imakhala ndi kusungunuka bwino kwambiri ndipo imatha kupanga ma flocs mwachangu. Imagwira ntchito yolumikizana kudzera mu neutralization yamagetsi ndi ukonde, ndipo imagwiritsidwa ntchito limodzi ndi flocculant PAM kuti ichotse bwino zinyalala m'madzi otayidwa. Poyerekeza ndi aluminium sulfate, PAC ili ndi mphamvu yokonza bwino komanso madzi abwino pambuyo poyeretsa. Pakadali pano, mtengo woyeretsera madzi wa PAC ndi wotsika ndi 15%-30% kuposa aluminium sulfate. Ponena za kugwiritsa ntchito alkalinity m'madzi, PAC ili ndi kugwiritsa ntchito kochepa ndipo imatha kuchepetsa kapena kuletsa jakisoni wa alkaline agent.

Chotsatira ndi aluminiyamu sulfate. Monga cholumikizira chachikhalidwe, aluminiyamu sulfate imakoka ndi kukhuthala zinthu zoipitsa kudzera mu aluminiyamu hydroxide colloids yopangidwa ndi hydrolysis. Kuchuluka kwake kosungunuka ndi kochepa, koma ndikoyenera kutsukidwa ndi madzi otayidwa ndi pH ya 6.0-7.5. Poyerekeza ndi PAC, aluminiyamu sulfate ili ndi mphamvu yochepetsera kutsukidwa ndi madzi oyera, ndipo mtengo woyeretsera madzi ndi wokwera.

Ponena za kukula kwa ntchito, PAC ndi aluminium sulfate zimagwiritsidwa ntchito mosiyana pang'ono; PAC nthawi zambiri imakhala yosavuta kugwira ndipo imapanga ma flocs mwachangu, zomwe zimapangitsa kuti chithandizo chigwire bwino ntchito. Komabe, aluminium sulfate imachedwa kusungunuka ndipo ingatenge nthawi yayitali kuti iume.

Sulfate ya aluminiyamuZimachepetsa pH ndi alkanility ya madzi oyeretsedwa, kotero soda kapena laimu amafunika kuti achepetse mphamvu ya mankhwalawa. Yankho la PAC ndi losalowerera ndipo silifunikira mankhwala aliwonse oletsa kufalikira kwa matendawa (soda kapena laimu).

Ponena za kusungira, PAC ndi aluminium sulfate nthawi zambiri zimakhala zokhazikika komanso zosavuta kusunga ndi kunyamula. Ngakhale PAC iyenera kutsekedwa kuti isayamwe chinyezi komanso kuti isawonongeke ndi dzuwa.

Kuphatikiza apo, poganizira za dzimbiri, aluminiyamu sulfate ndi yosavuta kugwiritsa ntchito koma imawononga kwambiri. Posankha ma coagulants, mphamvu zomwe zingachitike pazida zochizira ziyenera kuganiziridwa mokwanira.

Powombetsa mkota,Polyaluminum chloride(PAC) ndi aluminiyamu sulfate zili ndi ubwino ndi kuipa kwake pakukonza zimbudzi. Ponseponse, PAC pang'onopang'ono ikukhala coagulant yayikulu chifukwa cha kugwira ntchito bwino kwake, kuthekera kwake kokonza madzi otayira mwachangu komanso kusinthasintha kwakukulu kwa pH. Komabe, aluminiyamu sulfate ikadali ndi zabwino zosasinthika pazochitika zina. Chifukwa chake, posankha coagulant, zinthu monga kufunikira kwenikweni, zotsatira za chithandizo ndi mtengo wake ziyenera kuganiziridwa. Kusankha coagulant yoyenera kudzathandiza kukonza magwiridwe antchito a chithandizo cha madzi otayira.