In ukwelashwa kwamanzi amdaka ezimbonini, ukususwa kwezinto eziqinile ezilenga kuyisixhumanisi esibalulekile. Lokhu akugcini nje ngokusiza ekuthuthukiseni ikhwalithi yamanzi, kodwa futhi kunciphisa ukuguguleka kwemishini kanye nokuvaleka kwayo. Njengamanje, izindlela zokususa izinto eziqinile ezilengayo zifaka phakathi ukuthungwa, ukuhlunga, ukuntanta kanye nokuthungwa. Phakathi kwazo, indlela yokuthungwa isetshenziswa kabanzi ngenxa yokusebenza kwayo kahle kanye nokonga. Kule ndlela, i-polymer ebizwa nge-PolyDADMAC idlala indima ebalulekile.
I-PolyDADMAC, egama layo eligcwele yi-Poly diallyl dimethyl ammonium chloride, iyi-polymer ephezulu yama-molecule. Yakhiwa kakhulu ngokupholisha i-diallyldimethylammonium chloride monomer ngokusebenzisa i-chain growth polymerization. Lokhu kusabela kwe-polymerization kuvame ukwenziwa ngaphansi kwe-catalysis ye-asidi noma usawoti, futhi kungatholakala i-polymer yesakhiwo esiqondile. Ngokuvamile iwuketshezi oluphuzi noma i-powder emhlophe kuya kophuzi noma ama-granule. Inomswakama omuhle futhi ingasakazwa ngokulinganayo ezixazululweni zamanzi.
I-PolyDADMACine-charge density ephezulu futhi ivame ukusebenza njenge-cationic polymer. Lokhu kusho ukuthi ingamunca izinto eziqinile ezimisiwe ezishajelwe kabi kanye nezinhlayiya ze-colloidal emanzini ukuze zakhe ama-floc amakhulu, ngaleyo ndlela ifinyelele ekususweni okuphumelelayo kwezinto eziqinile ezimisiwe. I-PolyDAMAC ivame ukusetshenziswa njenge-flocculant kanye ne-coagulant futhi isetshenziswa kabanzi emikhakheni eyahlukene yokwelapha amanzi, okuhlanganisa ukwelashwa kwamanzi amdaka ezimbonini kanye nokwelashwa kwendle yasemadolobheni. Ingakha ngokushesha ama-floc amakhulu naminyene emanzini amdaka futhi isuse ngempumelelo izinto eziqinile ezimisiwe, ama-ion ensimbi esindayo kanye nokungcola okungokwemvelo.
Ekwelapheni amanzi angcolile avela emishinini yokugaya kanye nephepha, indlela yokusebenza ye-PolyDADMAC ibonakala kakhulu kulezi zici ezilandelayo:
Ukungashintshi kweshaja: Ngenxa yokuthi i-PolyDADMAC ine-charge density ephezulu, ingamunca ngokushesha izinto eziqinile ezimisiwe ezishajwe kabi kanye nezinhlayiya ze-colloidal, okubangela ukuthi zilahlekelwe ukuzinza ngokungashintshi kweshaja, bese zihlangana ukuze zakhe ama-floc ezinhlayiya ezinkulu.
Isenzo sokushanela: Njengoba i-floc yakheka, izodonsa izinto eziqinile ezilengisiwe kanye nezinhlayiya ze-colloidal emanzini angcolile ziye ku-floc, ifinyelele ukuhlukaniswa koketshezi oluqinile ngesenzo somzimba.
Umphumela wokubamba i-Net: Ama-polymer anama-molecule aphezulu angakha isakhiwo senethiwekhi esiminyene, abambe izinto eziqinile ezilengisiwe kanye nezinhlayiya ze-colloidal kuso njengenethi yokudoba, ngaleyo ndlela athole ukuhlukaniswa okuphumelelayo.
Uma kuqhathaniswa nezinye izindlela zokwelapha amanzi amdaka, ukusebenzisa i-PolyDAMAC ukwelapha amanzi amdaka e-pulp kanye ne-paper mill kunezinzuzo ezilandelayo:
Ubuningi bokushaja okuphezulu: Ubuningi bokushaja okuphezulu kwe-PolyDAMAC buyenza ikwazi ukumunca kahle izinto eziqinile ezimisiwe ezishajelwe kabi kanye nezinhlayiya ze-colloidal, okuthuthukisa ukusebenza kahle kokwelashwa.
Ukuzivumelanisa nezimo okunamandla: I-PolyDADMAC inemiphumela emihle yokwelapha ezinhlotsheni ezahlukene zamanzi angcolile e-pulp kanye nephepha futhi ayithinteki ukushintshashintsha kwekhwalithi yamanzi.
Ukusebenza kahle kakhulu kanye nokusetshenziswa okuphansi: Ukusebenzisa i-PolyDADMAC njengeI-Flocculantkanye ne-coagulant kunganciphisa kakhulu umthamo wamakhemikhali, kuyilapho kuthuthukiswa ukusebenza kahle kokwelashwa futhi kunciphisa izindleko zokusebenza.
Inobungani nemvelo: I-PolyDADMAC iyi-polymer ye-cationic. I-floc ekhiqizwa ngemva kokusetshenziswa ayiboli kalula ibe izinto eziyingozi futhi inobungani nemvelo.
Ekuphetheni, i-PolyDADMAC, njenge-I-Polymer Ephezulu Yamamolekyuli, inezinzuzo zokusebenza kahle kakhulu, ukusetshenziswa okuphansi, kanye nobungane bemvelo, futhi idlala indima ebalulekile ekwelapheni amanzi angcolile avela emishinini yokugaya kanye nephepha. Ngesikhathi lapho umkhuba wokuvikela imvelo kunzima ukumelana nawo, i-PolyDADMAC iwumkhiqizo wamakhemikhali odumile ohlangabezana nezici zemikhiqizo enobungane nemvelo.
Isikhathi sokuthunyelwe: Septhemba 12-2024