PolyDADMAC, eo lebitso la eona le felletseng e leng polydimethyldiallylammonium chloride, ke polima e qhibilihang ka metsing e nang le cationic e sebelisoang haholo tšimong ea kalafo ea metsi. Ka lebaka la ts'ebetso ea eona e ikhethang ea tefiso ea cationic le ho qhibiliha ha metsi a mangata, PolyDADMAC ke coagulant e sebetsang hantle e ka khonang ho tlosa turbidity, 'mala le litšila tse ling metsing. Leha ho le joalo, lits'ebetsong tse sebetsang, hangata e sebelisoa e le aflocculanthammoho le li-coagulants tse ling ho phekola likhoerekhoere tsa indasteri.
Litšobotsi le mokhoa oa ketso oa PolyDADMAC
PolyDADMAC e bapatsa ka potlako le ho kopanya likaroloana tsa colloidal tse qosoang hampe le lintho tse tiileng ka metsing ka lebaka la tefiso e phahameng ea cationic charges. Mokhoa oa eona oa ts'ebetso o thehiloe haholo-holo holim'a khoheli ea electrostatic, e leng se etsang hore likaroloana tsena tse nyenyane li kopane ka likaroloana tse kholo, e le hore li ka tlosoa ka katleho nakong ea mekhoa e latelang ea pula kapa ea filtration.
Mokhoa oa flocculation oa PolyDADMAC
Flocculation ke e 'ngoe ea mehato ea ts'ebetso ea coagulation. E bua ka mokhoa oo ho
"Lipalesa tse nyane tsa alum" tse entsoeng nakong ea ho kopanya li theha li-flocs tse nang le likaroloana tse kholoanyane ka adsorption, neutralization ea motlakase, borokho le ho ts'oara marang-rang.
Indastering ea ho hloekisa metsi, adsorption le ho se nke lehlakore ha motlakase li khetholloa e le coagulation, ha borokho le ho ts'oara marang-rang li aroloa e le flocculation. Lik'hemik'hale tse tšoanang li bitsoa coagulants le flocculants ka ho latellana.
Ka kakaretso ho lumeloa hore PolyDADMAC e na le mekhoa e meraro ea ts'ebetso: adsorption, neutralization ea motlakase le borokho. Tse peli tsa pele ke tsona tse ka sehloohong. Ke ka lebaka leo PolyDADMAC e khetholloang e le li-coagulants. Leha ho le joalo, batho ba bangata ba nka coagulation le flocculation e le mokhoa o ts'oanang, kahoo PolyDADMAC e boetse e bitsoa flocculant.
Mekhoeng ea ho hloekisa metsi, PolyDADMAC e sebelisoa haholo-holo e le flocculant ho ntlafatsa boleng ba metsi. Ka ho khetheha, sehlopha sa letsoai sa cationic quaternary ammonium sa PolyDADMAC se ka hlahisa khoheli ea electrostatic ka likaroloana tse emisitsoeng tsa anionic kapa likaroloana tsa colloidal ka metsing, e leng se etsang hore ho be le neutralization, ho etsa lihlopha tsa likaroloana tse kholoanyane le ho li rarolla. Li-flocs tsena li hlahlojoa nakong ea ts'ebetso e latelang ea sedimentation kapa filtration ho hloekisa boleng ba metsi.
Melemo ea PolyDADMAC
Ha ho bapisoa le li-flocculants tsa setso (alum, PAC, joalo-joalo), PolyDADMAC e na le melemo e latelang ea bohlokoa:
E sebetsa hantle: PolyDADMAC e ka tlosa litšila ka potlako metsing le ho ntlafatsa boleng ba metsi.
Ho bonolo ho sebetsa: Tšebeliso ea eona e bonolo, e kenye feela tlas'a maemo a loketseng.
Sustainability: PolyDADMAC e na le botsitso bo botle 'me ha e senyehe habonolo joaloka polyacrylamide.
Matla a flocculation a matla: Sehlopha sa letsoai sa cationic quaternary ammonium se fa PDMDAAC matla a matla a ho phalla, ka tsela eo ka katleho e tšoara litšoaneleho tse sa tšoaneng tsa metsi;
Ho hanyetsa letsoai hantle, ho hanyetsa acid le alkali: PDMDAAC e loketse maemo a rarahaneng a boleng ba metsi, 'me e ntse e e-na le ts'ebetso e tsitsitseng ea flocculation tlas'a maemo a phahameng a letsoai, acidic kapa alkaline;
Theko e tlaase: PolyDADMAC e na le katleho e phahameng ea flocculation le tekanyo e tlaase, e ka fokotsang litšenyehelo tsa ho hloekisa metsi.
Seretse se tlase: PolyDADMAC e hlahisa seretse se fokolang ho feta li-coagulants le li-flocculants tse sa sebetseng mme e boloka litšenyehelo tsa kamora ho sebetsa.
Tekanyetso le litemoso tsa PolyDADMAC
Ha u sebelisa PolyDADMAC, mekhoa ea ho sebetsa e lokela ho lateloa ka tieo ho netefatsa liphello tse nepahetseng tsa phekolo le ho qoba litla-morao tse ka bang teng. Hangata, ka mor'a ho eketsa li-flocculants tse kang polyaluminium chloride, PolyDADMAC e eketsoa ho finyella phello e ntle ea coagulation. Ho feta moo, litekanyetso li lokela ho lokisoa ka nepo ho latela boleng ba metsi le litlhoko tsa kalafo. Tekanyo e loketseng e ka khethoa ka liteko tsa linkho.
Ka kakaretso,PolyDADMACe phetha karolo ea bohlokoa tšimong ea ho hloekisa metsi. Kutloisiso e tebileng ea thepa le lits'ebetso tsa eona e tla thusa ho sebelisa sehlahisoa sena ka katleho ho ntlafatsa boleng ba metsi le ho sireletsa tikoloho.
Nako ea poso: Nov-14-2024