Melemo ea polyaluminum chloride e sebetsang hantle haholo kalafong ea metsi a litšila

Ka ho potlaka ha indasteri, ho ntsha likhoerekhoere e se e le taba e kholo ts'ireletsong ea tikoloho lefatšeng ka bophara. Motheo oa phekolo ea likhoerekhoere o holim'a khetho le tšebeliso eali-flocculantts'ebetsong ea tlhoekiso. Lilemong tsa morao tjena, polyaluminum chloride (PAC) e sebetsang hantle haholo, e le flocculant ea bohlokoa, butle-butle e fetohile "sehlahisoa sa linaleli" indastering ea phekolo ea likhoerekhoere ka lebaka la ts'ebetso ea eona e ntle le menyetla e mengata ea ts'ebeliso.

Polyaluminum chloride ke motsoako oa polymer o sa pheleng o nang le phello e matla ea flocculation. E fumanoa ka karabelo ea polymerization ea aluminium chloride le aluminium hydroxide tlas'a maemo a itseng. Ha e bapisoa le li-flocculant tsa letsoai la aluminium tsa setso (tse kang aluminium sulfate, coagulant ea letsoai la aluminium, jj.), polyaluminum chloride e sebetsang hantle e na le bokhoni bo matla ba ho tlosa litšila, haholo-holo ha e sebetsana le tšilafalo e phahameng ea mashala le tšilafalo e boima ea oli. Tshebetso e ikhetha haholo ha ho tluoa tabeng ea boleng ba metsi. E sebelisitsoe haholo masimong a mangata a kang kalafo ea likhoerekhoere tsa masepala, kalafo ea likhoerekhoere tsa indasteri le kalafo ea likhoerekhoere tsa malapeng.

Melemo ea polyaluminum chloride e sebetsang hantle haholo

1. Phello ea ho flocculation e makatsa

Polyaluminum chloride e sebetsang hantle haholo e ka etsa palo e kholo ea li-floc tse ntle ka potlako metsing, ka hona e monya lintho tse tiileng tse emisitsoeng, lintho tse nang le colloidal le likokoana-hloko ka katleho metsing. E ka monya le ho tlosa likaroloana tse emisitsoeng ka potlako, mafura, li-ion tsa tšepe e boima le litšila tse ling ka potlako metsing. Haholo-holo ha ho sebetsanoa le boleng bo rarahaneng ba metsi, phello e phahametse haholo li-flocculant tsa letsoai la aluminium tsa setso. Phekolong ea likhoerekhoere, polyaluminum chloride e sebetsang hantle haholo e ka eketsa lebelo la ho lula ha tanka ea sedimentation ka nako e khuts'oane, ka hona e khutsufatsa potoloho ea phekolo ea likhoerekhoere haholo.

2. Mefuta e fapaneng ea kopo

Polyaluminium chloride e sebetsang hantle haholoe ka ikamahanya le maemo a fapaneng a boleng ba metsi, ho kenyeletsoa metsi a nang le mongobo o mongata, likhoerekhoere tse nang le oli e ngata, metsi a nang le tšepe e boima, le metsi a nang le mongobo o tlase mochesong o tlase, e leng se bontšang ho ikamahanya le maemo ho matla. E ka tlosa lintho tse ngata tse tiileng tse emisitsoeng le litšila tse silafatsang ka metsing ka katleho, 'me e ka sebelisoa haholo kalafong ea likhoerekhoere masimong a fapaneng a kang tsamaiso ea masepala, indasteri le merafo. Mohlala, kalafong ea likhoerekhoere tsa malapeng, metsi a litšila a pulp mill, metsi a litšila a metallurgical, metsi a litšila a indasteri ea lijo le maemo a mang, polyaluminum chloride e sebetsang hantle e ka fihlela liphetho tse ntle tsa kalafo.

3. Tekanyo e tlase, bokgoni bo phahameng le ho boloka matla

Polyaluminium chloride e sebetsang hantle haholo e etselitsoe ho fihlela tekanyo e fokolang le phello e betere ea flocculation. Tekanyo ea turbidity e tlase ke 25-40% ea aluminium sulfate, 'me tekanyo ea turbidity e phahameng ke 10-25% ea aluminium sulfate. Sena ha se fokotse litšenyehelo tsa ho sebelisa lik'hemik'hale feela, empa hape se fokotsa tšebeliso ea matla le seretse ts'ebetsong ea kalafo ea likhoerekhoere. Ka lebaka la masala a eona a aluminium a tlase, e fokotsa tšilafalo ea bobeli ea mehloli ea metsi 'me e fokotsa haholo litšenyehelo tse akaretsang tsa kalafo ea likhoerekhoere. Ka hona, e fetohile sesebelisoa sa bohlokoa sa ho boloka litšenyehelo le ho ntlafatsa bokhoni lits'ebetsong tse sebetsang.

4. E sireletsa tikoloho

Tšebeliso ea polyaluminium chloride e sebetsang hantle haholo e na le tšusumetso e nyane tikolohong le masala a aluminium a fokolang. Ha e bapisoa le lik'hemik'hale tse ling tse nang le lik'hemik'hale, polyaluminium chloride e bolokehile haholoanyane 'me e na le tšusumetso e nyane ho pH le TA ea metsi a litšila, kahoo tlhoko ea lik'hemik'hale ho fetola pH le TA ea fokotseha. Haholo-holo mererong e meholo ea kalafo ea likhoerekhoere le tšireletso ea tikoloho, e fetohile khetho e tala le e mosa haholoanyane tikolohong.

5. E loketse kalafo ea metsi a mocheso o tlase le a nang le mongobo o phahameng

Phekolo ea metsi linakong tsa mocheso o tlase ke phephetso e tloaelehileng. Haholo-holo mariha a batang, katleho ea li-flocculant tse ngata tsa setso e tla fokotseha haholo. Leha ho le joalo, polyaluminum chloride e sebetsang hantle e ka tsoela pele ho boloka phello e phahameng ea flocculation tlas'a maemo a mocheso o tlase. Ho phaella moo, ha metsi a le mongobo o phahameng, PAC e boetse e bontša bokhoni bo matla ba ts'ebetso 'me e ka tlosa likaroloana tse emisitsoeng le lintho tse nang le colloidal ka katleho metsing. Bakeng sa metsi a nang le tšilafalo e matla ea oli, polyaluminum chloride e sebetsang hantle le eona e na le phello e ntle haholo ea ho tlosa mafura.

6. Ikamahanya le maemo a fapaneng a pH

Polyaluminium chloride e sebetsang hantle haholo e na le bokgoni bo matla ba ho ikamahanya le diphetoho tsa pH ya metsi mme e ka sebetsa ka katleho maemong a mangata a pH. Ka kakaretso, PAC e ka boloka phello e ntle ya flocculation metsing ka boleng ba pH bo tlase (bo nang le asiti) kapa bo hodimo (ba alkaline), e leng se eketsang tshebediso ya yona tlasa maemo a fapaneng a boleng ba metsi. 5.0-9.0 khahlano le 5.5-7.5

7. Ntlafatsa bokgoni ba ho senyeha ha mobu le ho fokotsa bophahamo ba seretse

Polyaluminum chloride e sebetsang hantle haholo e thusa ho potlakisa ho dula ha dikarolwana tse tiileng ka hara dikgwerekgwere mme e ntlafatsa bokgoni ba ho sebetsa ba tanka ya sedimentation ka ho ntlafatsa bongata le ho dula ha di-floc. Ho feta moo, ka lebaka la tekanyo e phahameng ya polymerization ya polyaluminum chloride e sebetsang hantle haholo, di-floc tse bopilweng di thatafala mme di dula kapele, ka hona di fokotsa bongata ba seretse se hlahiswang. Sena se bohlokwa haholo bakeng sa kalafo le ho lahla seretse se latelang, mme se ka fokotsa ditjeo le bothata ba kalafo ya seretse.

Mehlala ea tšebeliso ea polyaluminum chloride e sebetsang hantle haholo kalafong ea metsi a litšila

1. Phekolo ea likhoerekhoere tsa masepala

Lefapheng la kalafo ea likhoerekhoere tsa masepala, polyaluminum chloride e sebetsang hantle e ka sebelisoa haholo mehatong ea pele ho kalafo le ea bobeli ea limela tsa metsi. E ka tlosa lintho tse tiileng tse emisitsoeng, lintho tse nang le colloidal, libaktheria le likokoana-hloko tse ling ka metsing ka katleho, ea ntlafatsa boleng ba metsi, 'me ea fana ka mohloli oa metsi oa boleng bo holimo bakeng sa kalafo e latelang ea baeloji. PAC e fetohile e 'ngoe ea li-flocculant tse ka sehloohong lifemeng tsa kalafo ea likhoerekhoere metseng e mengata lapeng le linaheng tse ling.

2.Tlhabollo ea metsi a litšila ea indasteri

Lefapheng la kalafo ea metsi a litšila a indasteri, polyaluminum chloride e sebetsang hantle le eona e sebelisoa haholo. E na le phello e ntle ea kalafo metsing a litšila a indasteri a tsoang khatisong le daeeng, ho etsa pampiri, letlalo, ho betla ka motlakase le liindastering tse ling, 'me e ka tlosa litšila tse kang 'mala, COD le BOD ka katleho. Mohlala, ho metallurgy, motlakase, indasteri ea lik'hemik'hale, ho etsa pampiri, ho sebetsa lijo le liindastering tse ling, PAC e ka thusa ho tlosa litšepe tse boima, matheba a oli, likaroloana tse emisitsoeng le litšila tse ling ka metsing. Haholo-holo ha e phekola metsi a litšila a oli, PAC e bontšitse bokhoni ba eona bo botle ba ho tlosa oli 'me e ka fokotsa haholo oli ea libaka tsa metsi.

3. Tlhokomelo ea metsi a litšila a merafong

Lefapheng la kalafo ea metsi a litšila a merafong, polyaluminum chloride e sebetsang hantle e ka tlosa liminerale, sediment le lintho tse ling tse emisitsoeng ka katleho metsing, e leng se fanang ka tšehetso bakeng sa ho sebelisa metsi hape le ho tsosolosa tikoloho libakeng tsa merafo. Kaha boleng ba metsi libakeng tsa merafo bo rarahane 'me hangata bo na le bongata bo boholo ba lintho tse tiileng tse emisitsoeng le litšepe tse boima, katleho e phahameng ea polyaluminum chloride e sebetsang hantle haholo e ikhetha haholo mofuteng ona oa phekolo ea metsi a litšila.

Ka kakaretso,polyaluminum chloride e sebetsang hantle haholo, e le setlolo se setle sa ho phaphamala bakeng sa kalafo ea likhoerekhoere, se na le melemo e meholo ea botekgeniki le ea tikoloho. Haholo-holo tabeng ea ho ba le litšila tse ngata, boleng bo rarahaneng ba metsi le tšilafalo e boima ea oli, e ka fihlella liphello tse ntle haholo tsa kalafo.