In unyango lwamanzi amdaka kwimizi-mveliso, ukususwa kwezinto eziqinileyo ezimisiweyo likhonkco eliphambili. Oku akuncedi nje ukuphucula umgangatho wamanzi, kukwanciphisa ukuguga kunye nokukrazula kwizixhobo kunye nokuvala. Okwangoku, iindlela zokususa izinto eziqinileyo ezinqunyanyisiweyo zibandakanya i-sedimentation, filtration, flotation kunye ne-flocculation. Phakathi kwabo, indlela ye-flocculation isetyenziswa ngokubanzi ngenxa yokusebenza kwayo okuphezulu kunye noqoqosho. Kule ndlela, i-polymer ebizwa ngokuba yiPolyDADMAC idlala indima ebalulekileyo.
I-PolyDADMAC, egama layo elipheleleyo nguPoly diallyl dimethyl ammonium chloride, yipolymer ephezulu yemolekyuli. Ubukhulu becala yenziwe ngepolymerizing diallyldimethylammonium chloride monomer ngokusebenzisa ikhonkco lokukhula kwepolymerization. Le mpendulo ye-polymerization idla ngokuqhutyelwa phantsi kwe-catalysis ye-asidi okanye ityuwa, kwaye i-polymer yesakhiwo somgca inokufumaneka. Idla ngokuba lulwelo olutyheli okanye olumhlophe ukuya kumgubo omthubi okanye iigranules. Inonyibiliko olulungileyo kwaye inokusasazwa ngokulinganayo kwizisombululo ezinamanzi.
PolyDADMACinoxinano lwentlawulo ephezulu kwaye iziphatha njengepolima yecationic. Oku kuthetha ukuba inokubhengeza izinto eziqinileyo ezinqunyanyiswe kakubi kunye namasuntswana e-colloidal emanzini ukwenza iiflocs ezinkulu, ngaloo ndlela ifezekisa ukususwa okusebenzayo kwezinto eziqinileyo ezimisiweyo. I-PolyDADMAC ihlala isetyenziswa njenge-flocculant kunye ne-coagulant kwaye isetyenziswa ngokubanzi kwiindawo ezahlukeneyo zokunyanga amanzi, kubandakanywa ukucocwa kwamanzi amdaka kwimizi-mveliso kunye nokucocwa kogutyulo lwasezidolophini. Inokwenza ngokukhawuleza iiflocs ezinkulu kunye ezixineneyo kumanzi amdaka kwaye isuse ngokufanelekileyo izinto eziqinileyo ezimisiweyo, iiyoni zentsimbi enzima kunye nezingcolisi eziphilayo.
Kunyango lwamanzi amdaka aphuma kwipulp kunye nephepha lokusila, indlela yokusebenza yePolyDADMAC ibonakaliswa ikakhulu kule miba ilandelayo:
I-Neutralization ye-Charge: Ngenxa yokuba i-PolyDADMAC ine-high charge density, inokukhawuleza i-adsorb kwizinto eziqinileyo ezimisiweyo kunye neengqungquthela ze-colloidal, ezibangela ukuba zilahlekelwe uzinzo ngenxa ye-neutralization yentlawulo, kwaye emva koko idibanise ukwenza iiflocs zamasuntswana amakhulu.
Isenzo sokutshayela: Njengoko i-floc isenziwa, iya kutsala i-solids emisiwe kunye ne-colloidal particles kumanzi amdaka kwi-floc, ifezekise ukuhlukana okuqinileyo-olwelo ngokusebenzisa isenzo somzimba.
Isiphumo se-Net-capture: Iipolymers eziphezulu ze-molecular zinokwenza ubume bothungelwano obuxineneyo, zibambe izinto eziqinileyo ezimisiweyo kunye namasuntswana e-colloidal kuwo njengomnatha wokuloba, ngaloo ndlela ukuphumeza ukwahlula okusebenzayo.
Xa kuthelekiswa nezinye iindlela zokucocwa kwamanzi amdaka, kusetyenziswa iPolyDADMAC ukunyanga amanzi amdaka amdaka kunye nephepha lokusila kunezi nzuzo zilandelayo:
Uxinaniso lwentlawulo ephezulu: I-PolyDADMAC ye-high charge density yenza ukuba ikwazi ukufunxa ngokufanelekileyo izinto eziqinileyo ezinqunyanyisiweyo kunye namasuntswana e-colloidal, ukuphucula ukusebenza konyango.
Ukuguquguquka okunamandla: I-PolyDADMAC ineempembelelo ezilungileyo zonyango kwiindidi ezahlukeneyo ze-pulp kunye namanzi amdaka ephepha kwaye ayichatshazelwa kukuguquguquka komgangatho wamanzi.
Ukusebenza okuphezulu kunye nokusetyenziswa okuphantsi: Ukusebenzisa i-PolyDADMAC njengeI-Flocculantkunye ne-coagulant inokunciphisa kakhulu umthamo weekhemikhali, ngelixa iphucula ukusebenza kakuhle kwonyango kunye nokunciphisa iindleko zokusebenza.
Ubuhlobo bendalo: I-PolyDADMAC yipolymer ye-cationic. I-floc eveliswa emva kokusetyenziswa ayinakuchithwa ngokulula kwizinto ezinobungozi kwaye ihambelana nokusingqongileyo.
Ukuqukumbela, iPolyDADMAC, njengeIipolymer eziphezulu zeMolekyuli, ineenzuzo zokusebenza okuphezulu, ukusetyenziswa okuphantsi, kunye nobuhlobo bendalo, kwaye idlala indima ebalulekileyo ekuphatheni amanzi amdaka avela kwi-pulp kunye nephepha lokugaya. Ngexesha apho umkhwa wokukhuselwa kwendalo unzima ukumelana, i-PolyDADMAC iyimveliso yeekhemikhali eyaziwayo ehlangabezana neempawu zeemveliso ezihambelana nokusingqongileyo.
Ixesha lokuposa: Sep-12-2024