I-PolyDADMAC, egama layo eliphelele yi-polydimethyldiallylammonium chloride, iyi-polymer encibilikayo emanzini e-cationic esetshenziswa kabanzi emkhakheni wokwelashwa kwamanzi. Ngenxa yobuningi bayo obuhlukile be-cationic charge kanye nokuncibilika kwamanzi okuphezulu, i-PolyDADMAC iyi-coagulant esebenza kahle engasusa ngempumelelo ukungcola, umbala kanye nokunye ukungcola emanzini. Kodwa-ke, ekusetshenzisweni okusebenzayo, ivame ukusetshenziswa njenge-i-flocculantkuhlanganiswe nezinye izinto ezihlanganisa amanzi ukuze kulungiswe indle yezimboni.
Izici kanye nendlela yokusebenza kwe-PolyDADMAC
I-PolyDADMAC imunca futhi ihlanganise ngokushesha izinhlayiya ze-colloidal ezishajeke kabi kanye nezinto eziqinile ezilengisiwe emanzini ngenxa yobuningi bayo obukhulu be-cationic charge. Indlela esebenza ngayo isekelwe kakhulu ekukhangeni kwe-electrostatic, okubangela ukuthi lezi zinhlayiya ezincane zihlangane zibe izinhlayiya ezinkulu, ukuze zisuswe ngempumelelo ngesikhathi senqubo elandelayo yemvula noma yokuhlunga.
Indlela yokuqhuma kwe-PolyDADMAC
Ukugoqana kungenye yezinyathelo enqubweni yokujiya. Kubhekisela enqubweni lapho
"Izimbali ezincane ze-alum" ezakhiwe ngesikhathi senqubo yokujiya zakha ama-floc anezinhlayiya ezinkulu ngokumuncwa, ukuncishiswa kukagesi, ukubopha kanye nokubanjwa kwenetha.
Embonini yokwelapha amanzi, ukumuncwa kanye nokungaguquguquki kukagesi kubhekwa njengokujiya, kuyilapho ukubopha kanye nokubamba i-net kubhekwa njengokujiya. Amakhemikhali ahambisanayo abizwa ngokuthi ama-coagulant kanye nama-flocculant ngokulandelana.
Ngokuvamile kukholelwa ukuthi i-PolyDADMAC inezindlela ezintathu zokusebenza: ukumuncwa, ukungathathi hlangothi kukagesi kanye nokubopha. Ezokuqala ezimbili yizona eziyinhloko. Yingakho i-PolyDADMAC ihlukaniswa njenge-coagulants. Kodwa-ke, abantu abaningi babheka i-coagulation kanye ne-flocculation njengenqubo efanayo, ngakho-ke i-PolyDADMAC ibizwa nangokuthi i-flocculant.
Ezinqubweni zokwelashwa kwamanzi, i-PolyDADMAC isetshenziswa kakhulu njenge-flocculant ukuthuthukisa ikhwalithi yamanzi. Ngokukhethekile, iqembu likasawoti le-cationic quaternary ammonium le-PolyDADMAC lingakhiqiza ukukhanga kwe-electrostatic ngezinhlayiya ezimisiwe ze-anionic noma izinhlayiya ze-colloidal emanzini, okuholela ekuncipheni, kwakhiwe ama-floc ezinhlayiya ezinkulu bese ziwahlalisa. Lawa ma-floc ahlolwa ngesikhathi senqubo elandelayo yokuthuthwa noma yokuhlunga ukuze kuhlanzwe ikhwalithi yamanzi.
Izinzuzo ze-PolyDADMAC
Uma kuqhathaniswa nama-flocculant endabuko (i-alum, i-PAC, njll.), i-PolyDADMAC inezinzuzo ezilandelayo ezibalulekile:
Isebenza kahle: I-PolyDADMAC ingasusa ngokushesha ukungcola emanzini futhi ithuthukise ikhwalithi yamanzi.
Kulula ukuyisebenzisa: Ukusetshenziswa kwayo kulula, vele uyifake ngaphansi kwezimo ezifanele.
Ukuzinza: I-PolyDADMAC inokuqina okuhle futhi ayiqhekeki kalula njenge-polyacrylamide.
Umphumela oqinile wokugoqa: Iqembu likasawoti we-cationic quaternary ammonium linikeza i-PDMDAAC ikhono eliqinile lokugoqa, ngaleyo ndlela liphathe ngempumelelo izimfanelo ezahlukene zamanzi;
Ukumelana okuhle nosawoti, ukumelana ne-asidi kanye ne-alkali: I-PDMDAAC ifaneleka ezimweni eziyinkimbinkimbi zekhwalithi yamanzi, futhi isenamandla okugeleza aqinile ngaphansi kwezimo ezinosawoti omningi, i-asidi noma i-alkali;
Izindleko eziphansi: I-PolyDADMAC inamandla aphezulu okuhambisa amanzi kanye nesilinganiso esiphansi, okunganciphisa izindleko zokwelashwa kwamanzi.
Udaka oluphansi: I-PolyDADMAC ikhiqiza udaka oluncane kune-inorganic coagulants kanye ne-flocculants futhi yonga izindleko zokucubungula ngemuva kokucubungula.
Isilinganiso kanye nezinyathelo zokuphepha ze-PolyDADMAC
Uma usebenzisa i-PolyDADMAC, izinqubo zokusebenza kufanele zilandelwe ngokuqinile ukuqinisekisa imiphumela emihle yokwelashwa nokugwema imiphumela emibi engaba khona. Ngokuvamile, ngemva kokufaka ama-flocculant njenge-polyaluminium chloride, i-PolyDADMAC iyangezwa ukuze kufezwe umphumela omuhle kakhulu wokujiya. Ngaphezu kwalokho, umthamo kufanele ulungiswe ngokufanele ngokuya ngekhwalithi yamanzi kanye nezidingo zokwelashwa. Umthamo ofanele unganqunywa ngokuhlolwa kwebhodlela.
Sekukonke,I-PolyDADMACidlala indima ebalulekile emkhakheni wokwelashwa kwamanzi. Ukuqonda okujulile ngezakhiwo zayo kanye nokusetshenziswa kwayo kuzosiza ekusebenziseni lo mkhiqizo ngempumelelo ukuze kuthuthukiswe ikhwalithi yamanzi futhi kuvikelwe imvelo.
Isikhathi sokuthunyelwe: Novemba-14-2024