Kapangidwe ka Flocculant - Polyacrylamide

In Kuchiza Madzi Otayidwa ndi Mafakitale, padzakhala tinthu tating'onoting'ono tomwe timapachikidwa m'madzi otayidwa. Kuti muchotse tinthuti ndikuwapangitsa kuti madziwo akhale oyera komanso kuti agwiritsidwenso ntchito, ndikofunikira kugwiritsa ntchitoZowonjezera Zamankhwala a Madzi -Flocculants (PAM) kuti tinthu tomwe timapachikidwa timeneti timene timapachikidwa. Zonyansa zimasungunuka n’kukhala mamolekyu akuluakulu n’kukhazikika.

Tinthu ta colloid m'madzi ndi tating'onoting'ono, ndipo pamwamba pake pamakhala madzi ndi mphamvu kuti zikhale zokhazikika. Pambuyo poti flocculant yawonjezeredwa m'madzi, imasungunuka kukhala colloid yokhala ndi mphamvu ndi ma ayoni ozungulira kuti apange micelles yokhala ndi kapangidwe ka magetsi kawiri.

Njira yosakaniza mwachangu pambuyo popereka mlingo imagwiritsidwa ntchito kuti ilimbikitse mwayi ndi kuchuluka kwa kugundana pakati pa tinthu tating'onoting'ono ta colloidal m'madzi ndi micelles zomwe zimapangidwa ndi hydrolysis ya flocculant. Tinthu tating'onoting'ono tomwe tili m'madzi timataya kukhazikika kwawo chifukwa cha flocculant, kenako timalumikizana kukhala tinthu tating'onoting'ono tokulirapo, kenako timakhazikika kapena kuyandama m'malo olekanitsira.

GT ya chinthu cha velocity gradient G yopangidwa ndi kusakaniza ndi nthawi yosakaniza T ikhoza kuyimira mwachindunji chiwerengero chonse cha kugundana kwa tinthu mu nthawi yonse yochitapo kanthu, ndipo zotsatira za coagulation reaction zitha kulamulidwa posintha mtengo wa GT. Kawirikawiri, mtengo wa GT umayendetsedwa pakati pa 104 ndi 105. Poganizira za mphamvu ya kuchuluka kwa tinthu tosayera pa kugundana, mtengo wa GTC ungagwiritsidwe ntchito ngati chizindikiro chowongolera kuti uwonetse mphamvu ya coagulation, pomwe C imayimira kuchuluka kwa tinthu tosayera mu zimbudzi, ndipo tikulimbikitsidwa kuti mtengo wa GTC ukhale pakati pa 100 kapena kuposerapo.

Njira yopangitsa kuti flocculant ifalikire mwachangu m'madzi ndikusakanikirana mofanana ndi madzi onse otayira imatchedwa kusakaniza. Tinthu tating'onoting'ono tomwe tili m'madzi timalumikizana ndi flocculant, ndipo kudzera mu njira monga kukanikiza kwa zigawo ziwiri zamagetsi ndi kuletsa magetsi, kukhazikika kumatayika kapena kuchepetsedwa, ndipo njira yopangira ma micro floc imatchedwa coagulation. Njira yolumikizirana ndi kupanga ma micro floc omwe amakula kukhala ma floc akuluakulu kudzera mu njira monga adsorption bridging ndi sediment net capture pansi pa kugwedezeka kwa zinthu zolumikizira ndi kuyenda kwa madzi imatchedwa flocculation. Kusakaniza, kulumikizana ndi kulumikizana zimatchedwa coagulation. Njira yosakaniza nthawi zambiri imamalizidwa mu thanki yosakaniza, ndipo kulumikizana ndi kusunthana kumachitika mu thanki yochitira zinthu.

Za kugwiritsa ntchitoPolyacrylamidendi kusuntha kwake, mutha kulumikizana ndiKupanga Mankhwala a Madzikuti mudziwe zambiri