Mefuta e metle ea pH ea polyaluminium chloride metsing a litšila a etsang pampiri

Neng Polyaluminum chloride e sebediswang ho phekola dikgwerekgwere tsa pampiri, mofuta o motle wa pH o angwa ke mabaka a mangata. Diphuputso tse fapaneng le ditshebediso tse sebetsang di fana ka mefuta e fapaneng hanyane, ka kakaretso pakeng tsa 6 le 9. Maemo a itseng ke ana a latelang datang e fapaneng:

-pH e lokela ho ba pakeng tsa 6 le 8: Ka har'a sebaka sena, polyaluminum chloride e ka fihlella ho flocculation le ho kopana ho hotle. Maemong a pH a tlase (maemo a asiti), polyaluminum chloride e ntša li-ion tse ngata tsa aluminium hydroxide, e leng se eketsang ho flocculation. Leha ho le joalo, haeba pH e le tlase haholo, e ka lebisa ho ts'enyehong ea asiti le ho se tsitse, kahoo pH e lokela ho bolokoa kaholimo ho 6. Ka lehlakoreng le leng, maemong a pH a holimo (maemo a alkaline), phello ea flocculation ea polyaluminum chloride ea fokotseha. Maemong a alkaline e ngata, li-ion tsa aluminium ka har'a polyaluminum chloride foromo ea aluminium hydroxide lia potlaka, li fokotsa bokhoni ba eona ba ho flocculation. Ka hona, ho netefatsa ts'ebetso e ntle ka ho fetisisa, pH e lokela ho bolokoa ka tlase ho 8.

Mohlophisi o batla litšoantšo

-pH 7-9: Liteko li bontšitse hore tlas'a maemo a alkaline (pH 7-9), ha tekanyo ea polyaluminum chloride e feta 750mg/L, sekhahla sa ho tlosoa ha lintho tse tiileng tse emisitsoeng se ka feta 95%, 'me se ka tlosa 20-50% ea CODCr. Ha polyaluminum chloride e sebelisoa ho phekola metsi a litšila a silang pampiri, e bontša liphello tse ntle tsa kalafo ka har'a mefuta ena ea pH.

-pH 6.8-8.5: Ho ipapisitsoe le Kalafo ea Metsi Ha re ntse re fumana phihlelo, li-ion tsa aluminium tse ho polyaluminum chloride ke amphoteric. Ka kakaretso, lits'ebetso tsa kalafo ea metsi tse nang le pH pakeng tsa 6 le 9 li ka sebetsa ka mokhoa o tloaelehileng, 'me pH e ntle ka ho fetisisa e pakeng tsa 6.8 le 8.5. Ha pH ea metsi e le acidic, li-ion tsa aluminium ha li etse li-colloid tsa aluminium hydroxide 'me li lula e le li-ion tsa aluminium tse lokolohileng, kahoo li hlōleha ho tlosa litšila metsing a litšila ka katleho. Ka lehlakoreng le leng, ha pH ea metsi e le alkaline e matla, li-colloid tsa aluminium hydroxide li ka arabela le li-ion tsa hydroxide ho etsa aluminate, ka hona li lahleheloa ke bokhoni ba tsona ba ho monya le ho kopanya pula.

Ka lebaka la phapang ea boleng ba metsi a litšila har'a liindasteri tse fapaneng tsa pampiri, joalo ka liphetoho tsa motsoako le mahloriso a litšila, mefuta e metle ea pH bakeng sa polyaluminum chloride e ka fapana. Litšebelisong tse sebetsang, liteko le liphetoho li lokela ho etsoa ho latela boleng bo itseng ba metsi a litšila ba liindasteri tsa pampiri ho fihlela tekanyo e ntle ea polyaluminum chloride le mefuta e metle ea taolo ea pH.

# aluminium polikloride #