Ukungaqondi okujwayelekile lapho ukhetha uPam

Polycrylamide(Pam), njenge-polymer flocculant esetshenziswa kakhulu, isetshenziswa kabanzi ezimweni ezahlukahlukene zokwelashwa kwendle. Kodwa-ke, abasebenzisi abaningi bawela ukungaqondi okuthile ngesikhathi senqubo yokukhetha nokusebenzisa. Lo mbhalo uhlose ukuveza lokhu kungaqondi futhi unikeze ukuqonda okulungile neziphakamiso.

Ukungaqondi 1: Kukhudlwana isisindo se-molecular, kukhuphuka ukusebenza kahle kwe-floccution.

Lapho ukhetha i-polyyamide, abantu abaningi bacabanga ukuthi imodeli enesisindo esikhulu samangqamuzana kumele ibe nokusebenza kahle kwe-floccation. Kepha eqinisweni, kunamakhulu amamodeli e-polylamide, alungele izimo ezihlukile zekhwalithi yamanzi. Uhlobo lwamanzi amdaka akhiqizwa yifektri emikhakhelweni ehlukene yehlukile. Inani le-PH kanye nokungcola okuthile kwezimpawu ezahlukahlukene zamanzi kuhluke kakhulu. Bangaba yi-acidic, alkali, engathathi hlangothi, noma iqukethe uwoyela, udaba lwe-organic, umbala, i-sediment, njll. Ngakho-ke, kunzima ngohlobo olulodwa lwe-polyracrylamide ukuze uhlangane nazo zonke izidingo zokwelashwa kwamanzi angcolile. Indlela efanelekile ukuqala ukhethe imodeli ngokusebenzisa izivivinyo, bese wenza izivivinyo zomshini ukuthola umthamo ofanele ukuze uzuze umphumela obiza kakhulu.

Ukungaqondi 2: Ukuphakama okuphezulu kokucushwa, okungcono

Lapho ulungiselela izixazululo ze-polyryrylamide, abasebenzisi abaningi bakholelwa ukuthi ukukhuphuka okuphezulu, okungcono kwezakhiwo ze-flocculation. Kodwa-ke, lo mbono awulungile. Eqinisweni, ukugcwaliseka kokucushwa kwe-pam kufanele kunqunywe ngokuya ngemibandela ethile yokukhucululwa kwendle kanye nezimo ze-sludge. Ngokuvamile, izixazululo ze-PAM ezinokuhlushwa okungu-0,1% -0.3% zilungele ukugcwala kanye nokudilizwa, ngenkathi okuhlushwa komasipala kanye nezimboni shugan vo aningaing ngo-0.2% -0.5%. Lapho kunokungcola okuningi kakhulu ekukhuculweni kwendle, ukugcwala kwe-PAM kungadinga ukukhuphuka ngendlela efanele. Ngakho-ke, ukuhlinzwa okulungiselelwe okufanele kufanele kunqunywe ngokuhlolwa ngaphambi kokusebenzisa ukuqinisekisa umphumela omuhle kakhulu.

Ukungaqondi 3: Isikhathi eside ukuchithwa nesikhathi esishukumisayo, okungcono

I-PolyAcrylamide iyizinhlayiyana ezimhlophe ze-crystalline ezidinga ukuncibilika ngokuphelele ukuze kufinyelelwe umphumela omuhle kakhulu. Abasebenzisi abaningi bacabanga ukuthi isikhathi eside ukuchitheka kanye nesikhathi esishukumisayo, kungcono, kodwa empeleni akunjalo. Uma isikhathi esishukumisayo side kakhulu, kuzodala ukuqhekeka okuyingxenye kwe-pam molecular chain futhi kuthinte ukusebenza kwe-floccution. Ngokuvamile, isikhathi sokuchithwa kanye nesikhathi esishukumisayo akufanele kube ngaphansi kwemizuzu engama-30 futhi kufanele sinwetshwe ngokufanele lapho izinga lokushisa liphansi ebusika. Uma isikhathi sokuchithwa kanye nesikhathi esishukumisayo sifushane kakhulu, uPam ngeke achithwe ngokugcwele, okuzoholela ekungangeni kahle ukwenza ngempumelelo i-floccation esheshayo yokuthuthwa kwendle. Ngakho-ke, abasebenzisi kufanele baqinisekise ukuqedwa okwanele kanye nesikhathi esishukumisayo lapho beyisebenzisa ukuqinisekisa ukusebenza kweFloccution of Pam.

Ukungaqondi 4: Ionicity / Ionic degree ukuphela kwesisekelo sokukhethwa

Njengenye yezinkomba ezibalulekile zePolayicrylamide, i-Ionicity ibhekisela kwicala elingelona elilungile neline-ionic kanye nokushaja kwalo. Abantu abaningi banaka kakhulu i-Ionicity lapho bethenga, becabanga ukuthi okuphezulu. Kepha eqinisweni, izinga le-Ionicity lihlobene nosayizi wesisindo se-molecular. I-Ionicity, incane isisindo samangqamuzana, futhi ikhuphuka intengo. Enqubweni yokukhetha, ngaphezu kwe-Ionicity, ezinye izinto ezidinga ukubhekwa, njengezimo ezithile zekhwalithi zamanzi, izidingo zomphumela we-floccution, njll. Ngakho-ke, imodeli ayikwazi ukukhethwa ngokusekelwe kuphela ngezinga le-Ionization. Ukuhlolwa okwengeziwe kuyadingeka ukuthola imodeli edingekayo.

Njenge-i-flecculontant, ama-polyyamise adlala indima ebalulekile embonini yokwelashwa kwamanzi. Lapho udinga ukukhetha imininingwane evumelana nawe, ngicela ungithinte.