Electrocoagulation (EC) ke mokhoa o sebelisang motlakase ho tlosa litšila metsing a litšila. E kenyelletsa ts'ebeliso ea phepelo ea motlakase ea dc ho qhala li-electrode tsa sehlabelo, tse ntan'o lokolla li-ion tsa tšepe tse hoamang le lintho tse silafatsang. Mokhoa ona o se o tumme ka lebaka la katleho ea ona, botsoalle ba tikoloho, le ho feto-fetoha ha maemo ha ho hloekisoa mefuta e fapaneng ea metsi a litšila.
Melao-motheo ea Electrocoagulation
Ka electrocoagulation, motlakase oa motlakase o fetisoa ka li-electrode tsa tšepe tse kenngoeng ka metsing a litšila. Anode (positive electrode) e qhibiliha, e lokolla li-cations tsa tšepe tse kang aluminium kapa tšepe ka metsing. Li-ion tsena tsa tšepe li sebetsana le litšila tse ka metsing, li etsa li-insoluble hydroxides tse kopanang 'me li ka tlosoa habonolo. The cathode (negative electrode) hlahisa haedrojene khase, e thusang ka phaphametseng likaroloana coagulated ho holim'a skimming.
Ts'ebetso e akaretsang e ka akaretsoa ka mehato e latelang:
Electrolysis: phepelo ea motlakase ea dc e sebelisoa ho li-electrode, e etsa hore anode e qhale le ho lokolla li-ion tsa tšepe.
Coagulation: Li-ion tsa tšepe tse lokollotsoeng li fokotsa liqoso tsa likaroloana tse emisitsoeng le litšila tse qhibilihisitsoeng, tse lebisang ho thehoeng ha lihlopha tse kholoanyane.
Flotation: Li-bubble tsa khase ea haedrojene tse hlahisoang ka har'a cathode li hokela ho li-aggregates, li etsa hore li phaphametse holimo.
Karohano: Letlapa le phaphametseng le ntšoa ka ho thella, ha lesela le lutseng le bokelloa ho tloha tlase.
Melemo ea phepelo ea Matla a DC ho Electrocoagulation
Ts'ebetso e nepahetseng: phepelo ea motlakase ea dc e lumella taolo e nepahetseng holim'a matla a hajoale le motlakase o kentsoeng, ho ntlafatsa ho qhibiliha ha li-electrode le ho netefatsa hore litšila li sebetsa hantle.
Bonolo: Ho hlophisoa ha electrocoagulation ho sebelisa phepelo ea motlakase ea DC ho batla ho le bonolo, ho kenyelletsa phepelo ea motlakase, li-electrode le kamore ea karabelo.
Botsoalle ba Tikoloho: Ho fapana le ho kopanya lik'hemik'hale, electrocoagulation ha e hloke ho eketsoa ha lik'hemik'hale tse ka ntle, ho fokotsa kotsi ea tšilafalo ea bobeli.
Ho feto-fetoha ha maemo: EC e ka phekola mefuta e mengata e silafatsang, ho kenyeletsoa litšepe tse boima, metsoako ea lintho tse phelang, lintho tse tiileng tse emisitsoeng, esita le likokoana-hloko.
Lisebelisoa tsa Electrocoagulation ho Phekolo ea Metsi a Litšila
Metsi a litšila a indasteri: Electrocoagulation e sebetsa haholo ho alafa metsi a litšila a indasteri a nang le litšepe tse boima, lidae, oli le litšila tse ling tse rarahaneng. Liindasteri tse kang masela, electroplating, le meriana ea meriana e rua molemo ho bokhoni ba EC ba ho tlosa lintho tse chefo le ho fokotsa tlhokahalo ea lik'hemik'hale tsa oksijene (COD).
Metsi a litšila a Masepala: EC e ka sebelisoa e le mokhoa oa mantlha kapa oa bobeli oa kalafo bakeng sa metsi a litšila a masepala, ho thusa ho tlosa lintho tse tiileng tse fanyehiloeng, li-phosphates le likokoana-hloko. E ntlafatsa boleng ba kakaretso ea metsi a hloekisitsoeng, a etsa hore a lokele ho qhaloa kapa ho sebelisoa hape.
Agricultural Runoff: EC e khona ho phekola metsi a phallang a temo a nang le chefo e bolaeang likokoanyana, manyolo le lintho tse phelang. Sesebelisoa sena se thusa ho fokotsa tšusumetso ea mesebetsi ea temo libakeng tse haufi tsa metsi.
Phekolo ea Metsi a Seholiotsoana: EC e ka sebelisoa ho phallo ea metsi a sefefo ho tlosa litšila, litšepe tse boima, le lintho tse ling tse silafatsang, ho li thibela ho kena metsing a tlhaho.
Mekhahlelo ea Ts'ebetso le Ntlafatso
Katleho ea electrocoagulation e ipapisitse le likarolo tse 'maloa tsa ts'ebetso, ho kenyelletsa:
Boima ba Hona Joale: Palo ea hona joale e sebelisoang sebakeng sa yuniti ea elektrode e ama sekhahla sa ho lokolloa ha ion ea tšepe le katleho e akaretsang ea ts'ebetso. Mathata a phahameng a hona joale a ka eketsa ts'ebetso ea kalafo empa hape a ka lebisa tšebelisong e phahameng ea matla le ho roaloa ha li-electrode.
Lisebelisoa tsa Electrode: Khetho ea thepa ea electrode (hangata aluminium kapa tšepe) e susumetsa mofuta le katleho ea coagulation. Lisebelisoa tse fapaneng li khethoa ho itšetlehile ka litšila tse khethehileng tse teng metsing a litšila.
pH: pH ea metsi a litšila e ama ho qhibiliha le ho thehoa ha metal hydroxides. Maemo a pH a nepahetseng a netefatsa ts'ebetso e phahameng ea coagulation le botsitso ba li-aggregates tse entsoeng.
Tlhophiso ea Electrode: Tokiso le sebaka sa li-electrode li ama kabo ea lebala la motlakase le ho tšoana ha tšebetso ea kalafo. Tlhophiso e nepahetseng e ntlafatsa kamano pakeng tsa li-ion tsa tšepe le litšila.
Nako ea Karabelo: Nako ea electrocoagulation e ama boholo ba ho tlosoa ha litšila. Nako e lekaneng ea karabelo e tiisa ho kopanya ho feletseng le ho arohana ha litšila.
Mathata le Litsela tsa Kamoso
Leha e na le melemo, electrocoagulation e tobane le mathata a mang:
Tšebeliso ea Electrode: Sebopeho sa sehlabelo sa anode se lebisa tšebelisong ea eona butle-butle, e hlokang ho nkeloa sebaka nako le nako kapa ho nchafatsoa.
Tšebeliso ea Matla: Le ha phepelo ea motlakase ea DC e lumella taolo e nepahetseng, e ka ba matla haholo bakeng sa ts'ebetso e kholo.
Taolo ea Sludge: Ts'ebetso e hlahisa seretse se hlokang ho laoloa le ho lahloa ka nepo, se eketsang litšenyehelo tsa ts'ebetso.
Liphuputso le lintlafatso tsa nako e tlang li ikemiselitse ho rarolla mathata ana ka:
Ho ntlafatsa Lisebelisoa tsa Electrode: Ho theha lisebelisoa tse tšoarellang le tse sebetsang hantle tsa elektrode ho fokotsa tšebeliso le ho ntlafatsa ts'ebetso.
Ho ntlafatsa Phepelo ea Matla: Ho sebelisa mekhoa e tsoetseng pele ea phepelo ea motlakase, joalo ka pulsed DC, ho fokotsa tšebeliso ea matla le ho ntlafatsa ts'ebetso ea kalafo.
Ntlafatso ea ho Ts'oara Sludge: Mekhoa e mecha ea ho fokotsa seretse le ho matlafatsa matla, joalo ka ho fetola seretse hore e be lihlahisoa tse sebetsang.
Qetellong, phepelo ea motlakase ea DC e bapala karolo ea bohlokoa ho electrocoagulation bakeng sa pheko ea metsi a litšila, e fana ka tharollo e sebetsang, e baballang tikoloho le e fapaneng bakeng sa ho tlosa litšila tse fapaneng. Ka tsoelo-pele e tsoelang pele le ntlafatso, electrocoagulation e mothating oa ho ba mokhoa o sebetsang le o tsitsitseng oa ho rarolla mathata a lefats'e a ho hloekisa metsi a litšila.
Nako ea poso: Jul-12-2024
