Ukusetshenziswa kwe-PAC embonini yamaphepha

I-Polyaluminum Chloride (PAC) ingamakhemikhali abalulekile embonini yamaphepha ebala, edlala indima ebaluleke kakhulu ezigabeni ezahlukahlukene zenqubo yokuphambana. I-PAC yi-coabulent esetshenziselwa ukuthuthukisa ukugcinwa kwezinhlayiya ezinhle, ama-fibers, kanye nemicu, ngaleyo ndlela ethuthukisa ukusebenza kahle nekhwalithi yokukhiqizwa kwamaphepha.

Ukuhlangana kanye ne-Floccation

Umsebenzi oyinhloko we-PAC ohlangothini lwe-papermaking ukuqina kwalo kanye nezakhiwo ze-floccation. Ngesikhathi senqubo yokuphambana, amanzi ahlanganiswa ne-cellulose fibers ukwakha i-slurry. Le slurry iqukethe inani elikhulu lezinhlayiya ezinhle futhi inciphise izinto eziphilayo ezidinga ukususwa ukuze zikhiqize iphepha eliphakeme. I-PAC, uma ingezwe ku-slurry, inqanyulwa izindleko ezingezinhle kulezinhlayiya ezimisiwe, ibangelwe ukuba bahlangane ndawonye baba ama-aggregate amakhulu noma ama-flocs. Le nqubo iyasiza kakhulu ekususeni kwalezi zinhlayiya ezinhle ngesikhathi senqubo yokudonsa amanzi, okuholela emanzini acwengekileyo futhi agcinwe kabusha nge-fiber retent.

Ukugcinwa okuthuthukisiwe kanye nokudonsa

Ukugcinwa kwemicu kanye nama-fillers kubalulekile emaphaketheni njengoba kuthinta ngqo amandla okuqina kwamaphepha, ukuthungwa, kanye nekhwalithi ephelele. I-PAC ithuthukisa ukugcinwa kwalezi zinto zokwakha ngokwakhiwa ama-flocs amakhulu angagcinwa kalula kwi-wire umshini wephepha. Lokhu akukuthuthuki amandla kuphela nekhwalithi yephepha kodwa futhi kunciphisa inani lokulahlekelwa okubonakalayo okungavuthiwe, okuholela ekugcinweni kwezindleko. Ngaphezu kwalokho, i-drainage ethuthukisiwe evuselelwa yi-PAC inciphise okuqukethwe kwamanzi ekhasini lephepha, ngaleyo ndlela kunciphisa amandla adingekayo ekomiswe futhi athuthukise ukusebenza kahle kwenqubo yokuphamba.

Ukuphuculwa kwekhwalithi yephepha

Ukusetshenziswa kwe-PAC ku-papermake kunikela kakhulu ekuthuthukisweni kwekhwalithi yephepha. Ngokuthuthukisa ukugcinwa kwenhlawulo kanye nama-fillers, i-PAC isiza ekukhiqizeni iphepha ngokwakha okungcono, ukufana, kanye nezakhiwo zangaphandle. Lokhu kuholela ekuphrikeliseni okuthuthukile, bushelelezi, nokubukeka okuphelele kwephepha, okwenza kulungele ukuphrinta okuseqophelweni eliphezulu kanye nezicelo zokupakisha.

Ukuncishiswa kwe-bod kanye ne-cod ekwelashweni kwamanzi okuhlasela kwamanzi

I-Biochemical Oxygen funa (Bod) kanye ne-Chemical Opygen 4. Amazinga aphezulu we-Bod ne-COD akhombisa izinga eliphakeme lokungcola, okungalimaza imvelo. I-PAC inciphisa ngempumelelo amazinga e-BOD ne-COD ngokususa futhi isuse ukungcoliswa kwe-organic kumanzi amdaka. Lokhu akusizi nje kuphela ekuhlangabezaneni nemithetho yezemvelo kodwa futhi kunciphisa nezindleko zokwelashwa ezihambisana nokuphathwa kwamanzi angcolile.

Ngamafuphi, i-polyaluminum chloride iyisengezo esibalulekile embonini yangobubanzi, enikeza izinzuzo eziningi ezithuthukisa ukusebenza kahle kwenqubo yamaphepha kanye nekhwalithi yomkhiqizo wokugcina. Izindima zalo ekubambeni kanye nokugcinwa kabusha, ukugcinwa okuthuthukile, ukunciphisa, ukuncishiswa kwe-bod kanye ne-cod, kanye nokwenza ngcono okuphelele kwekhwalithi yephepha kwenza kube yingxenye ebaluleke kakhulu emaphaketheni wanamuhla.