In ukwelashwa kwamanzi angcolile ezimbonini, ukususwa kwezinto eziqinile ezimisiwe kuyisixhumanisi esiyinhloko. Lokhu akusizi nje ukuthuthukisa ikhwalithi yamanzi, futhi kunciphisa ukuguga kwemishini nokuvala. Njengamanje, izindlela zokususa izinto eziqinile ezimisiwe ikakhulukazi zifaka i-sedimentation, filtration, flotation kanye ne-flocculation. Phakathi kwazo, indlela ye-flocculation isetshenziswa kabanzi ngenxa yokusebenza kwayo okuphezulu nomnotho. Kule ndlela, i-polymer ebizwa nge-PolyDADMAC idlala indima ebalulekile.
I-PolyDADMAC, igama layo eliphelele i-Poly diallyl dimethyl ammonium chloride, iyi-polymer yamangqamuzana aphezulu. Yakhiwa ngokuyinhloko nge-polymerizing diallyldimethylammonium chloride monomer ngokusebenzisa i-polymerization yokukhula kweketango. Lokhu kusabela kwe-polymerization kuvame ukwenziwa ngaphansi kwe-catalysis ye-asidi noma usawoti, futhi i-polymer yesakhiwo somugqa ingatholakala. Ngokuvamile kuba uketshezi oluphuzi noma olumhlophe ukuya kophuzi noma ama-granules. Inoncibilika kahle futhi ingahlakazwa ngokulinganayo ezixazululweni ezinamanzi.
I-PolyDADMACine-high charge density futhi ngokuvamile iziphatha njenge-cationic polymer. Lokhu kusho ukuthi ingakwazi ukukhangisa izinto eziqinile ezimiswe okwesikhashana ezikhokhiswe kabi kanye nezinhlayiya ze-colloidal emanzini ukuze zakhe ama-flocs amakhulu, ngaleyo ndlela kuzuzwe ukususwa okusebenzayo kwezinto eziqinile ezimisiwe. I-PolyDADMAC ivamise ukusetshenziswa njenge-flocculant kanye ne-coagulant futhi isetshenziswa kabanzi emikhakheni ehlukahlukene yokuhlanza amanzi, okuhlanganisa ukuhlanzwa kwamanzi angcolile ezimbonini kanye nokuthuthwa kwendle emadolobheni. Ingakha ngokushesha ama-flocs amakhulu naminyene emanzini angcolile futhi isuse ngempumelelo izinto eziqinile ezimisiwe, ama-ion ensimbi esindayo kanye nokungcola kwemvelo.
Ekwelashweni kwamanzi angcolile avela ku-pulp kanye nezigayo zephepha, indlela yokusebenza ye-PolyDADMAC ibonakala ikakhulukazi kulezi zici ezilandelayo:
Ukunciphisa ukushaja: Ngenxa yokuthi i-PolyDADMAC inomthamo wokushaja okuphezulu, ingakhangiswa ngokushesha ezintweni eziqinile ezimiswe okwesikhashana nezinhlayiya ze-colloidal, izenze zilahlekelwe ukuzinza ngokumiswa kweshaji, bese ihlanganisa ukuze yenze ama-flocs ezinhlayiya ezinkulu.
Isenzo sokushanela: Njengoba i-floc yakheka, izodonsela okuqinile okumisiwe kanye nezinhlayiya ze-colloidal emanzini angcolile ku-floc, izuze ukuhlukaniswa koketshezi oluqinile ngokusebenzisa isenzo somzimba.
Umthelela wokubamba inetha: Ama-polymer ane-molecular ephezulu angakha isakhiwo senethiwekhi esiminyene, abambe okuqinile okumisiwe kanye nezinhlayiya ze-colloidal kuso njengenethi yokudoba, ngaleyo ndlela azuze ukuhlukana okuphumelelayo.
Uma kuqhathaniswa nezinye izindlela zokuhlanza amanzi angcolile, ukusebenzisa i-PolyDADMAC ukwelapha amanzi angcolile e-pulp kanye namaphepha okugaya kunezinzuzo ezilandelayo:
Ukuminyana kokushajwa okuphezulu: I-PolyDADMAC ephezulu yokushaja iyenza ikwazi ukumunca ngempumelelo izinto eziqinile ezimiswe okwesikhashana kanye nezinhlayiya ze-colloidal, ithuthukise ukusebenza kahle kokwelashwa.
Ukuzivumelanisa nezimo okuqinile: I-PolyDADMAC inemiphumela emihle yokwelapha ezinhlotsheni ezihlukahlukene zamanzi angcolile e-pulp namaphepha futhi ayithinteki ukushintshashintsha kwekhwalithi yamanzi.
Ukusebenza kahle okuphezulu nokusetshenziswa okuphansi: Ukusebenzisa i-PolyDADMAC njengeI-Flocculantfuthi i-coagulant inganciphisa kakhulu umthamo wamakhemikhali, kuyilapho ithuthukisa ukusebenza kahle kokwelashwa nokunciphisa izindleko zokusebenza.
Ivumelana nemvelo: I-PolyDADMAC iyi-polymer ye-cationic. I-floc ekhiqizwa ngemva kokusetshenziswa ayiboli kalula ibe izinto eziyingozi futhi ihambisana nemvelo.
Sengiphetha, i-PolyDADMAC, njenge-aHigh Molecular Polymer, inezinzuzo zokusebenza kahle okuphezulu, ukusetshenziswa okuphansi, kanye nobungane bemvelo, futhi idlala indima ebalulekile ekwelapheni amanzi angcolile aphuma ku-pulp kanye nezigayo zephepha. Esikhathini lapho umkhuba wokuvikelwa kwemvelo unzima ukumelana, i-PolyDADMAC iwumkhiqizo wamakhemikhali odumile ohlangabezana nezici zemikhiqizo ehambisana nemvelo.
Isikhathi sokuthumela: Sep-12-2024