Mokhoa le ts'ebeliso ea PolyDADMAC kalafong ea metsi

Polydiallyldimethylammonium chloride(PolyDADMAC) ke cationic polymer flocculant e sebelisoang haholo 'me e phetha karolo ea bohlokoa tšimong ea ho hloekisa metsi. PDADAC hangata e sebelisoa joalo ka flocculant mme ka linako tse ling e kopantsoe le algaecides. Sehlooho sena se tla hlalosa ka melemo le bohlokoa ba tšebeliso e sebetsang ea PolyDADMAC ho tloha likarolong tsa mokhoa oa eona oa ts'ebetso, maemo a ts'ebeliso le mekhoa e tobileng ea ho ntlafatsa katleho ea phekolo ea metsi.

Litšobotsi tsa mantlha tsa PolyDADMAC

PolyDADMAC ke polymer e phahameng ea molek'hule e nang le palo e kholo ea lihlopha tsa cationic ka sebopeho sa eona sa limolek'hule, tse ka khonang ho bapatsa ka katleho likaroloana tse emisitsoeng le li-colloids ka metsing. Litšobotsi tsa eona tse ka sehloohong li kenyelletsa:

1. cationicity e matla: E ka fokotsa ka potlako likaroloana tse emisitsoeng tse qosoang hampe ka metsing.

2. Ho qhibiliha ha metsi hantle: Ho bonolo ho qhibiliha ka metsing 'me e loketse bakeng sa ts'ebeliso ea sebaka sa marang-rang.

3. Ho tsitsa ha lik'hemik'hale: E ka boloka ts'ebetso e phahameng ea flocculation libakeng tse fapaneng tsa pH, tikoloho ea oxidizing le tikoloho e phahameng ea ho kuta. PDDMAC e na le khanyetso e matla ea chlorine.

4. Chefo e tlase: E kopana le litekanyetso tsa ts'ireletso ea tikoloho 'me e loketse ho hloekisa metsi a nooang.

Mokhoa oa ketso oa PolyDADMAC kalafo ea metsi

E thefula likaroloana tse emisitsoeng le lintho tse nang le metsi a nang le metsi a qosoa hampe ka metsing 'me e li tsamaisa ka mokhoa oa motlakase oa motlakase le ho koala borokho ba adsorption. E na le litlamorao tse kholo ho decolorization, le ho tlosoa ha lintho tse phelang.

PolyDADMACe ntlafatsa ts'ebetso ea ho hloekisa metsi ka mekhoa e latelang:

1. Tefiso neutralization

Likaroloana tse emisitsoeng le li-colloid ka metsing hangata li jara liqoso tse mpe, tse bakang ho khopisana pakeng tsa likaroloana le ho etsa hore ho be thata ho rarolla. Lihlopha tsa cationic tsa PolyDADMAC li ka potlakisa ho fokotsa liqoso tse mpe, tsa fokotsa lehloeo la electrostatic pakeng tsa likaroloana, le ho khothalletsa ho kopana ha likaroloana.

2. Phello ea ho koala

Sebopeho sa molek'hule se selelele sa polyDADMAC se nang le li-viscosity tse phahameng se nolofalletsa ho etsa "borokho" pakeng tsa likaroloana tse ngata, ho kopanya likaroloana tse nyenyane ka lihlopha tse kholoanyane, ka tsela eo ho ntlafatsa katleho ea sedimentation.

3. Ho matlafatsa phello ea ho hapa letlooa

PolyDADMAC e ka matlafatsa "mohaho oa letlooa" o entsoeng ke inorganic coagulant kalafong ea metsi ho ts'oara ka nepo taba e emisitsoeng hantle, haholo-holo moferefere o phahameng kapa metsi a silafetseng haholo.

Maemo a kopo ea PolyDADMAC

1. Phekolo ea metsi a nooang

PolyDADMAC e sebelisoa e le flocculant ho tlosa turbidity, likaroloana tse emisitsoeng le lintho tse phelang metsing a nooang. Ka nako e ts'oanang, ka lebaka la chefo e tlaase le litšobotsi tsa tšireletso ea tikoloho, e ka finyella litekanyetso tsa tšireletso ea metsi a nooang.

2. Phekolo ea metsi a litšila

Sebakeng sa ho hloekisa metsi a litšila a masepala le indasteri, PolyDADMAC e atisa ho sebelisoa ho ntlafatsa ts'ebetso ea ho ntša metsi a litšila, ho fokotsa mongobo oa kaka ea seretse, le ho fokotsa haholo litšenyehelo tsa ts'ebetso.

3. Ho hloekisa metsi a indasteri

Ka matla, liindasteri tsa petrochemical le tse ling, PolyDADMAC e sebelisetsoa ho hloekisa metsi a indasteri a kang metsi a pholileng le metsi a boiler ho fokotsa likotsi tsa ho senya le ho senya.

4. Indasteri ea ho etsa lipampiri le ea masela

PolyDADMAC e sebelisoa e le thuso ea ho boloka le ho hloekisa ho ntlafatsa lebelo la ho boloka likhoele le li-fillers ka mokhoa oa ho etsa pampiri, ha li ntse li fokotsa litaba tsa taba e emisitsoeng metsing a litšila.

Maano a ho ntlafatsa ts'ebetso ea kalafo ea metsi ka PolyDADMAC

1. Ho ntlafatsa taolo ea litekanyetso

Tekanyo ea PolyDADMAC e amana haufi-ufi le mahloriso, kabo ea boholo ba likaroloana le litšobotsi tse silafatsang tsa likaroloana tse emisitsoeng ka metsing. Ho ntlafatsa litekanyetso ka ho etsa tlhahlobo ea linkho ho ka eketsa phello ea eona ea ho phalla ha ho ntse ho qoba litekanyetso tse feteletseng tse lebisang ho theko e phahameng kapa tšilafalo ea bobeli ea metsi.

2. Phello ea Synergistic e nang le li-flocculants tsa inorganic

Tšebeliso ea PolyDADMAC hammoho le li-flocculants tsa inorganic (tse kang polyaluminium chloride le aluminium sulfate) li ka ntlafatsa haholo phello ea flocculation. Ka mor'a hore PolyDADMAC e fokolise tefiso ea bokaholimo ba likaroloana, li-flocculants tsa inorganic li tsoela pele ho theha lihlopha tse kholoanyane ka ho adsorption le sedimentation.

3. Ntlafatsa boemo ba boiketsetso ba mekhoa ea ho hloekisa metsi

Ka thuso ea mekhoa ea ho laola e ikemetseng, ho hlahloba nako ea sebele le ho lokisoa ha tekanyo ea PolyDADMAC ho ka finyelloa ho sebetsana ka katleho le liphetoho tsa katleho ea phekolo e bakoang ke ho fetoha ha boleng ba metsi.

4. Ntlafatsa maemo a susumetsang

Kamora ho eketsa PolyDADMAC, matla a susumetsang a loketseng le nako e ka ntlafatsa ho senyeha ha eona le ho sebetsa hantle ha eona. Ho hlohlelletsa ho feteletseng ho ka etsa hore li-flocs li robehe, athe ho hlohlelletsa ho sa lekaneng ho tla fokotsa phello ea ho kopanya.

5. Fetola boleng ba pH

PolyDADMAC e sebetsa hantle ka ho fetisisa tlas'a ho se nke lehlakore ho maemo a fokolang a alkaline. Ha o phekola metsi a acidic haholo kapa a alkaline haholo, ho lokisa boleng ba pH ea 'mele oa metsi ho ka ntlafatsa haholo phello ea ona ea ho phalla.

Melemo ea PolyDADMAC

1. Bokgoni bo phahameng: Ho thehoa ka potlako ha li-flocs ho ntlafatsa katleho ea karohano ea metsi a tiileng.

2. Mefuta e mengata ea lisebelisoa: E sebetsa ho litšoaneleho tse fapaneng tsa metsi, haholo metsi a nang le moferefere o phahameng le lintho tse ngata tse phelang.

3. Tšireletso ea tikoloho: Chefo e tlase le ho senyeha ha tikoloho, ho latela litlhoko tsa ts'ireletso ea tikoloho.

E le e sebetsang hantle haholoflocculant, PolyDADMAC e na le melemo ea bohlokoa ea ts'ebeliso tšimong ea phekolo ea metsi ka lebaka la cationicity ea eona e matla, ho qhibiliha ha metsi hantle le ho sebelisoa ka bophara. Ka mekhoa e metle ea ts'ebetso le ts'ebetso, ts'ebetso ea eona ea kalafo ho hloekisoeng ha metsi a nooang, likhoerekhoere le metsi a indasteri li ka ntlafatsoa le ho feta.