Molao-motheo le ts'ebeliso ea polyaluminium chloride (PAC) joalo ka sesebelisoa se phahameng sa ho tlosa fluoride

1. Molao-motheo le mochine oa lik'hemik'hale oa ho tlosa fluoride

Polyaluminium Chloride (PAC) ke motsoako oa polymer oa inorganic, mme ho tlosoa ha fluoride ho bonoa haholo ka mekhoa e 'meli e latelang:

Chemisorption: PAC e qhibilihisoa ka metsing e lokolle aluminium ion (Al³), 'me e kopantsoe le fluoride ion (F) ho etsa hydrofluoric acid (HF) mahareng, ebe e tsoela pele ho theha pula ea insoluble aluminium fluoride (AlF ₃).

Co-precipitation effect: aluminium hydroxide colloid e hlahisoang ke PAC hydrolysis e apesa ion ea fluorine ea mahala ka ho adsorption le ho ts'oara mesh, 'me qetellong e e tlose ka karohano ea metsi a tiileng.

2. Kopo maemo le litlamorao

FatšeTlhoekiso ea Metsi: Bakeng sa libaka tse phahameng tsa fluoride (concentration ea fluoride> 1.5 mg/L), PAC e ka fokotsa litaba tsa fluoride ho ea boemong ba naha ea metsi a nooang (

Phekolo ea metsi a litšila a indasteri: e loketseng metsi a litšila a nang le fluorine (joalo ka semiconductor, indasteri ea etching ea likhalase), e ka kopanngoa le lisebelisoa tse ling tsa ho tlosa fluoride (joalo ka letsoai la calcium) ho ntlafatsa ts'ebetso.

Sistimi ea phepelo ea metsi ea masepala: joalo ka sehokelo sa kalafo kapa kalafo e tebileng, ho netefatsa polokeho ea metsi a nooang, haholo mariha a ka leboea, mocheso oa metsi o lokela ho laoloa ke> 20 ℃ ho boloka ts'ebetso.

3. mantlha molemo

Ho sebetsa hantle haholo: Ha ho bapisoa le letsoai la setso la aluminium (joalo ka aluminium sulfate), PAC e na le tefiso e phahameng ea tefiso le lebelo la ho phalla ka potlako, 'me katleho ea ho tlosa fluorine e eketseha ka 30% tlas'a chelete e tšoanang ea tlatsetso.

Moruo: litšenyehelo tsa kalafo li tlase ho feta 40% ho feta tsa alumina e kentsoeng, reverse osmosis le mahlale a mang, 'me ha ho lisebelisoa tse rarahaneng tse hlokahalang.

Ho ikamahanya le maemo ho pharaletseng: pH Ts'ebeliso e mengata (5.0-9.0), e ka tlosa moferefere ka mokhoa o ts'oanang, litšepe tse boima le litšila tse ling.

4. Sebelisa lintlha tsa bohlokoa 'me u sebelise tataiso ea optimization

Eketsa taolo: ho kgothaletswa ho fumana tekanyo e nepahetseng ya phepo (hangata 11-13kg / lithane tse sekete tsa metsi) ka teko ea beaker, 'me tšebeliso e feteletseng e ka lebisa ho masala a mangata a aluminium.

Ntlafatso ea maemo a karabelo: boleng ba pH bo nepahetse ho 6.5-7.6, 'me mocheso o tlase ho 20 ℃ ha mocheso o eketseha.

Nts'etsopele ea ts'ebetso e kopaneng: CaF ₂ -AlF ₃ sistimi ea pula e habeli e ka etsoa ha e kopantsoe le letsoai la calcium (joalo ka lime), mme sekhahla sa ho tlosa fluoride se ka fihla ho feta 95%.

5. Tikoloho tshireletso le boleng ba moruo

Jwaloka sesebediswa sa bohlokwa sa tshireletso ya tikoloho se kgothaletswang nakong ya Moralo wa Dilemo tse hlano tsa bo-14, PAC e fokotsa kotsi ya fluorosis mme e kgothalletsa ntshetsopele ya indasteri ya ho hlwekiswa ha metsi ho ya ho ditjeho tse tlase le tshebediso e tlase ya matla. Tlhahiso ea eona e kholo (phello ea selemo le selemo ea lithane tse fetang 180,000) le ntlafatso ea theknoloji (joalo ka ts'ebetso ea lisebelisoa tse tala tsa aluminium hydroxide) e tsoela pele ho kopanya boemo bo ka sehloohong 'marakeng.

Ka mekhoa e mengata ea ts'ebetso le ts'ebeliso e pharaletseng, polyaluminium chloride e fetohile e 'ngoe ea litharollo tsa ho tlosa fluoride tse sebetsang hantle ka ho fetisisa hajoale. Ka ts'ebeliso ea nano-modification le mahlale a mang nakong e tlang, ts'ebetso ea eona e lebelletsoe ho fihlela katleho e kholo.