Tataiso e Felletseng bakeng sa Phekolo e Sebetsang ea Metsi
Mekhoa ea phekolo ea metsi e itšetlehile haholo ka mekhoa ea ho hoama le ho phaphamala ho tlosa likaroloana tse emisitsoeng, lintho tse phelang le ho fifala ha metsi. Har'a lik'hemik'hale tse sebelisoang haholo lits'ebetsong tsena kePolyaluminum Chloride (PAC)lePolyacrylamide (PAM).
Ha di sebediswa mmoho ka nepo, PAC le PAM di ka ntlafatsa haholo bokgoni ba ho hlakisa metsi, tsa fokotsa tekanyo ya dikhemikhale, mme tsa ntlafatsa tshebetso ya ho qhalana ha seretse. Leha ho le jwalo, motswako o sa lokelang—jwalo ka tatellano e fosahetseng ya tekanyo kapa mahloriso—o ka fokotsa bokgoni ba kalafo.
Sengoloa sena se fana ka tataiso e felletseng ea botekgeniki ea mokhoa oa ho kopanya PAC le PAM ho kopaneng ha mali, ho kenyeletsoa melao-motheo, mekhoa ea ho lekanya, maano a ntlafatso, le liphoso tse tloaelehileng tseo u lokelang ho li qoba.
Ho Utloisisa Mesebetsi ea PAC le PAM ho Kopaneng ha Lisele
Pele re buisana ka mokhoa oa ho li kopanya, ho bohlokoa ho utloisisa hore na k'hemik'hale e 'ngoe le e 'ngoe e sebetsa joang ts'ebetsong ea coagulation-flocculation.
Polyaluminum chlorideke coagulant ea polymer e sa pheleng e sebelisoang haholo kalafong ea metsi a nooang, kalafong ea metsi a litšila a indasteri, le lits'ebetsong tsa likhoerekhoere tsa masepala.
PAC e sebetsa haholo-holo ka ho thibela ho kenngoa ha tjhaja le ho monya metsi. Metsing e mengata ea tlhaho, likaroloana tse emisitsoeng li na le litefiso tse mpe, tse li bolokang li hasane le ho li thibela ho lula. PAC e ntša li-ion tsa aluminium tse nang le tjhaja e ntle tse fokotsang litefiso tsena. Hang ha li se li sa sebetse, likaroloana li qala ho kopana ho ba li-microfloc tse nyane.
Melemo ea PAC
- Bokhoni bo matla ba ho kopanya mali
- Ho tlosa mafome ka katleho
- Tšebeliso e pharaletseng ea pH
- Bophahamo ba seretse bo tlase ha bo bapisoa le letsoai la aluminium la setso
- E loketse kalafo ea metsi a nooang le metsi a litšila
Leha ho le jwalo, PAC feela e ka etsa dihlopha tse nyane tse dulang butle, e leng moo PAM e bang bohlokwa teng.
Polyacrylamideke flocculant ea polymer ea tlhaho e sebelisetsoang ho ntlafatsa ho phaphamala le ho lula. PAM e sebetsa haholo-holo ka ho kopanya polymer. Liketane tsa eona tse telele tsa limolek'hule li hokahanya li-microfloc tse ngata hammoho, li etsa li-floc tse kholo le tse teteaneng tse lulang kapele.
Mefuta ea PAM e sebelisoang kalafong ea metsi
Ho na le mefuta e meraro e meholo:
- PAM ea Anionic (APAM)
- PAM ea Cationic (CPAM)
- PAM e seng ea ionic (NPAM)
Litsamaisong tse ngata tsa PAC + PAM, PAM ea anionic e sebelisoa hangata hobane PAC e se e ntse e fana ka ho fokotsa tjhaja hantle.
Melemo ea PAM litsamaisong tsa ho kopanya mali
- E holisa boholo ba floc
- E potlakisa ho senngoa ha mobu
- E ntlafatsa ho tlosoa ha metsi a seretse
- E fokotsa tekanyo ea PAC
- E ntlafatsa bokgoni ba ho sefa
Hobaneng PAC le PAM li Sebelisoa Hammoho
Ho sebedisa PAC le PAM mmoho ho hlahisa phello ya ho kopana ha disele le ho phaphamala ha disele.
Mokhoa oa mohato ka mohato
PAC e sitisa dikarolwana, e fokotsa ditefiso, mme e bopa di-micro-floc.
Liketane tsa PAM li hokahanya li-microfloc ho li-floc tse kholoanyane.
Li-floc tse kholo li teba kapele ka har'a litanka tsa ho sesa.
Melemo ea ho sebelisa polyaluminum chloride le polyacrylamide hammoho
- Ho tlosoa ha mafome a mangata
- Nako ea ho rarolla mathata ka potlako
- Tšebeliso e tlase ea lik'hemik'hale
- Bophahamo ba seretse bo fokotsehileng
- Tshebetso e ntlafetseng ya sefe
Ka lebaka la melemo ena, metsoako ea PAC + PAM e sebelisoa haholo ho:
- Litsi tsa tlhokomelo ea metsi a litšila tsa masepala
- Phekolo ea metsi a litšila a indasteri
- Tlhakiso ea metsi a litšila a merafong
- Phekolo ea metsi a litšila a fekthering ea pampiri
- Tlhaloso ea metsi a nooang
Tatellano e Nepahetseng ea Tekanyo ea PAC le PAM
E 'ngoe ea lintlha tsa bohlokoa ka ho fetisisa bakeng sa ho koala ha mali ka katleho ke tatellano ea tekanyo. Tatellano e nepahetseng ke:PAC pele → PAM ea bobeli
Hobaneng PAC e lokela ho eketsoa pele
PAC e tlameha ho qala ka ho fokotsa tjhaja ya dikarolwana mme e thehe dikarolwana tsa pele tse nyane. Ntle le mohato ona, dimolek'hule tsa PAM di tla qhibiliha feela ka metsing mme di ke ke tsa kgona ho tlama dikarolwana ka katleho.
Mehato e tloaelehileng ea ho lekanya
- Tanka ea ho kopanya ka potlako
- Ente ea PAC
- Ho kopanya ka potlako (metsotsoana e 30–60)
- Ente ea PAM
- Ho kopanya butle (mokhahlelo oa ho phaphamala)
- Ho senngoa ha mashala
⚠️ Phoso e tloaelehileng:Ho eketsa PAM pele ho PAC ke phoso e tloaelehileng e lebisang ho thehoeng hampe ha floc le lik'hemik'hale tse senyehileng.
Tekanyo e ntle ka ho fetisisa ea PAC le PAM
Tekanyo e fapana ho latela boleng ba metsi, mongobo, le bongata ba lintho tse tiileng tse emisitsoeng.
Mefuta e tloaelehileng ke e latelang
Tekanyo ea PAC
Metsi a nooang: 5–50 mg/L
Metsi a litšila a indasteri: 30–200 mg/L
Tekanyo ea PAM
Hangata e tlase haholo ho feta PAC
Mefuta e tloaelehileng: 0.1–3 mg/L
Molao oa bohlokoa
Tekanyo ea PAM hangata ke 1/100 ho isa ho 1/50 ea tekanyo ea PAC.
PAM e feteletseng e ka lebisa ho:
- Li-floc tse khomarelang
- Ho se tsitse hantle
- Ho koala ha sefa
Ka hona, tlhahlobo ea nkho ea hlokahala ho fumana tekanyo e nepahetseng.
Ho Lokisetsa Litharollo tsa PAC le PAM
Ho lokisoa ha lik'hemik'hale hantle hoa hlokahala bakeng sa tekanyo e tsitsitseng.
* Tokisetso ea tharollo ea PAC
Hangata PAC e lokisoa e le tharollo ea 5–10%.
PAC e qhibiliha ka potlako 'me hangata e ka sebelisoa ka letsatsi le le leng.
*Tokisetso ea tharollo ea PAM
PAM e hloka boitokisetso bo hlokolosi haholoanyane.
Ho tsepamisa maikutlo ho tloaelehileng:
Tharollo ea 0.05–0.1%
Tokisetso ea mohlala:
- Kenya metsi ka tankeng ea ho kopanya
- Fafatsa butle-butle phofo ea PAM
- Hlohlelletsa butle metsotso e 30-60
- Lumella botsofali metsotso e 30
Lintlha tsa bohlokoa:
- Qoba ho kopanya ka lebelo le phahameng (ho ka 'na ha roba liketane tsa polymer)
- Sebelisa metsi a hloekileng
- Lokisetsa tharollo e ncha letsatsi le letsatsi
Maemo a Kopanyang Bakeng sa ho Kopanya ka Katleho
Ho kopanya matla ho ama haholo ts'ebetso ea ho hoama ha mali.
Mokhahlelo o potlakileng oa ho kopanya
Morero: qhalanya PAC kapele.
Liparamente tse tloaelehileng:
- Nako: metsotsoana e 30–60
- Phapang ea lebelo (G): 700–1000 s⁻¹
Mokhahlelo oa ho phaphamala ha metsi
Sepheo: lumella li-floc ho hola ntle le ho robeha.
Liparamente tse tloaelehileng:
- Nako: Metsotso e 15–30
- Lebelo la ho phahama ha sekhahla: 20–80 s⁻¹
Hangata PAM e eketsoa qalong ea mohato oa flocculation.
Teko ea Nkho bakeng sa Ntlafatso ea Ts'ebetso
Teko ea nkho ke mokhoa o tšepahalang ka ho fetisisa oa ho fumana motsoako o motle oa PAC le PAM.
Mokhoa o tloaelehileng oa teko ea nkho
- Lokisetsa disampole tse 'maloa tsa metsi
- Kenya litekanyo tse fapaneng tsa PAC
- Motsoako o potlakileng
- Kenya PAM
- Motsoako o liehang
- Hlokomela ho thehoa ha floc
- Lekanya ho fifala ha metsi ka mora ho dula
Litlhokomeliso tsa bohlokoa:
- Boholo ba Floc
- Lebelo la ho rarolla
- Ho hlaka ha metsi
Tekanyo e ntle ka ho fetisisa e hlahisa:
- Li-floc tse kholo
- Ho lula kapele
- Metsi a hlakileng a sa tloaelehang
Liphoso tse Tloaelehileng ha ho Kopanngoa PAC le PAM
Esita le basebetsi ba nang le boiphihlelo ka linako tse ling ba kopana le mathata.
Qetello
Ho kopanya Polyaluminum Chloride le Polyacrylamide ke e 'ngoe ea maano a sebetsang ka ho fetisisa bakeng sa ho ntlafatsa ho kopana ha metsi le ho phaphamala ha metsi lits'ebetsong tsa kalafo ea metsi.
PAC e sitisa dikarolwana tse leketlileng ka ho fokotsa matla a motlakase, ha PAM e ntlafatsa sebopeho sa floc ka ho kopanya di-polymer. Ha e sebediswa ka tatellano e nepahetseng—PAC pele, PAM ya bobedi—dikhemikhale tsena di hlahisa di-floc tse kgolo, tse teteaneng tse dulang kapele mme di hlahisa metsi a hlakileng.
Ho fihlela diphetho tse ntle ka ho fetisisa, basebetsi ba lokela ho tsepamisa maikutlo ho:
- Tatellano e nepahetseng ea tekanyo
- Taolo e nepahetseng ea tekanyo
- Tokisetso e nepahetseng ea tharollo
- Maemo a ho kopanya a ntlafalitsoeng
- Teko ea nkho bakeng sa tokiso ea ts'ebetso
Ka mekhoa e nepahetseng ea ts'ebetso, PAC le PAM li ka ntlafatsa haholo ts'ebetso ea kalafo ea metsi, ts'ebetso ea ho emisa seretse, le ts'epo ea sistimi ka kakaretso.
Nako ea poso: Hlakubele-18-2026
