PAC
PFS
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Letsoai ke e 'ngoe ea matšoao a mantlha a polyferric sulfate (PFS),' me e phahameng le e tlase e ama ka kotloloho ts'ebetso ea flocculation. Mokhoa o ikhethileng oa ts'usumetso le maemo a ts'ebeliso ke joalo ka
2025-06-18
🔬 I. Tšusumetso e tobileng ea letsoai ka katleho ea flocculation
- Sebopeho sa limolek'hule le litšobotsi tsa tefiso
- Letsoai le phahameng (> 12%):
- Ha ketane ea molek'hule e le telele, e phahamisa tekanyo ea polymerization, 'me e matlafala le matla a ho koala adsorption, a ka etsang alum e kholo le e teteaneng ka potlako.
- Ka mor'a hydrolysis, li-ion tse ngata tsa OH⁻ li hlahisoa, matla a motlakase a ho se nke lehlakore a matlafatsoa, 'me phello ea ho senyeha ha likaroloana tsa colloid e bohlokoa haholo.
- Letsoai le tlase (
- Fe³⁺ ea mahala e loketse maemo a hlokang hore li-ion tsa tšepe li kenye letsoho karabelong (joalo ka ho tlosoa ha phosphorus le ho pshatla litšepe tse boima).
- Letsoai le phahameng (> 12%):
- Ha letsoai le phahame, le ho feta comPact sebopeho sa alum e hlahisitsoeng le lebelo la sedimentation ka potlako (nako ea ts'ebetso e khutsufatsoa ka ho feta 30%).
- Ha setsi sa letsoai se le tlase haholo, palesa ea alum e hlephile 'me ho bonolo ho robeha,' me ts'ebetso ea sedimentation ea fokotseha.
- Lihlahisoa tsa letsoai le phahameng li mamella ho feto-fetoha ha pH ea metsi a tala (pH e sebetsang hantle ea 4-11), haholo-holo e loketseng boleng ba metsi a alkaline.
- Letsoai le tlase le tla fokotsa pH ea metsi, e loketseng Phekolo ea Metsi a litšila maemong a acidic (joalo ka ho fokotsa litšila tsa alkaline).
⚖ II. Ho leka-lekana le moeli oa letsoai
- Litaba tsa botsitso
- Ha setsi sa letsoai se feta 16%, sehlahisoa se bonolo ho hydrolyze le ho hlahisa Fe (OH) SO₄ pula, e fokotsang metsoako e sebetsang le ho thibela phaephe.
- Ho etsoa tlhahiso ea hore setsi sa letsoai se lokela ho laoloa pakeng tsa 8% le 16% ho ela hloko phello ea flocculation le botsitso ba polokelo.
- Moruo le ho sebetsa
- Letsoai le phahameng: le loketse metsi a litšila a phahameng a chromatic (joalo ka khatiso le ho daea, metsi a litšila a etsang pampiri), ho fokotsa tekanyo ea lik'hemik'hale ka 10% -20%.
- Letsoai le tlase: le loketse mocheso o tlase le boleng ba metsi a turbid kapa litšoantšo tse hlokang karabelo ea lik'hemik'hale tsa tšepe (joalo ka ho tlosoa ha phosphorus).
🌡 Tse tharo, litlhahiso tsa melaoana ts'ebetsong e sebetsang
| Mofuta oa boleng ba metsi | Khothalletsa letsoai motheo | sesosa |
|---|---|---|
| Metsi a litšila a phahameng a turbidity/high chromaticity | 12%-16% | Ntlafatsa bridging ea adsorption le ho potlakisa sedimentation |
| Mocheso o tlase oa metsi a litšila | 8%-10% | Qoba hydrolysis e feteletseng mme u ntlafatse ts'ebetso |
| Phosphorus/metsi a litšila a tšepe e thata | 8%-12% | Li-ion tsa mahala tsa tšepe li khothalletsa pula ea lik'hemik'hale |
| Metsi a tala a alkaline (pH>9) | ≥14% | Fokotsa ho feto-fetoha ha pH le ho boloka phello ea flocculation |
⚠ Tse 'nè, Litlhokomeliso
- Ho fumanwa le karohano:
- Teko ea motheo ea letsoai e lokela ho etsoa ka thata ho latela maemo (joalo ka GB 14591-2016) ho qoba liphoso tse bakoang ke lihlahisoa tse phahameng tsa tšepe.
- Phetoho e matla:
- Letsoai le lokisoa ka nako ea sebele ho latela phetoho ea boleng ba metsi. Ka mohlala, letsoai le ka eketseha ha moferefere oa metsi a tala a eketseha nakong ea lipula.
- Tšebetso ea Synergistic:
- Ha e sebelisoa le polyacrylamide (PAM), e ka etsa bakeng sa bokhoni bo sa lekaneng ba borokho ba lihlahisoa tse tlase tsa letsoai.
Mohloli oa lintlha: Liteko tse felletseng le boikoetliso ba boenjiniere li bontša hore letsoai le hloka ho ntlafatsoa ho latela litšoaneleho tsa boleng ba metsi, ho fapana le ho lelekisa boleng bo holimo ka bofofu.