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Membrane Bioreactor MBR Package System Setsila sa Phekolo ea Metsi a Litšila
Molao-motheo oa ho sebetsa oa mbr membrane bioreactor
MBR membrane bioreactor (MBR) ke mokhoa o sebetsang hantle oa ho hloekisa metsi a litšila o kopanyang theknoloji ea karohano ea membrane le theknoloji ea kalafo ea baeloji. Molao-motheo oa eona oa ts'ebetso o ipapisitse le lintlha tse latelang:
Theknoloji ea karohano ea li-membrane: Lera la MBR le arotsoe ke theknoloji ea ultrafiltration kapa microfiltration membrane, ho nkela sebaka sa tanka ea bobeli ea sedimentation le yuniti e tloaelehileng ea ho hloekisa ts'ebetsong ea setso ea likhoerekhoere. Theknoloji ena e ka tšoasa sludge e kentsoeng le macromolecular organic matter, e le ho fihlela karohano ea metsi a tiileng.
Karohano ea metsi a tiileng le metsi a matla a phahameng: Matla a phahameng a ho arohana a tiileng-metsi a MBR membrane bioreactor a etsa hore boleng ba metsi a litšila bo be molemo, bo fanyehiloeng le moferefere o haufi le lefela, 'me bo ka tšoasa lintho tse silafatsang tse kang E. coli. Boleng ba metsi a litšila ka mor'a phekolo ho hlakile hore bo phahametse mokhoa oa khale oa ho hloekisa metsi a litšila, 'me ke theknoloji e sebetsang hantle le e theko e tlaase ea ho sebelisa metsi a litšila.
Ntlafatso ea phello ea kalafo: Ts'ebetso ea membrane ea MBR e matlafatsa haholo ts'ebetso ea bioreactor ka theknoloji ea karohano ea membrane, 'me ke e' ngoe ea mahlale a macha a ts'episang a ho hloekisa metsi a litšila ha a bapisoa le mekhoa ea khale ea kalafo ea tlhaho. E na le melemo e hlakileng joalo ka sekhahla se phahameng sa ho tlosoa ha litšila, khanyetso e matla ea ho ruruha ha seretse, boleng bo tsitsitseng le bo tšepahalang ba litšila.
Litšobotsi tsa lisebelisoa: Litšobotsi tsa ts'ebetso ea membrane ea MBR lisebelisoa tsa kalafo ea likhoerekhoere tsa malapeng li kenyelletsa sekhahla se phahameng sa ho tlosoa ha litšila, khanyetso e matla ea ho ruruha ha seretse, boleng ba metsi a litšila a tsitsitseng le a ts'eptjoang, ho koaloa ha mochini ho qoba tahlehelo ea likokoana-hloko, 'me khatello e phahameng ea litšila e ka khona. e bolokehe ka har'a bioreactor.
MBR membrane bioreactor ka melao-motheo e ka holimo, ho finyella phello e sebetsang le e tsitsitseng ea phekolo ea likhoerekhoere, e sebelisoang haholo ho hloekisa likhoerekhoere tsa malapeng, ho hloekisa metsi a litšila a indasteri le masimo a mang.
Sebopeho sa MBR membrane bioreactor
Sistimi ea Membrane bioreactor (MBR) hangata e entsoe ka likarolo tse latelang:
1. Seliba sa ho kena ka metsi: seliba sa metsi se na le kou e phallang le heke e kenang ea metsi. Tabeng ea hore metsi a mangata a feta mojaro oa tsamaiso kapa tsamaiso ea phekolo e hlaheloa ke kotsi, heke ea ho kena ha metsi e koetsoe, 'me likhoerekhoere li ntšoa ka ho toba ka nōkeng kapa marang-rang a liphaephe tsa masepala haufi le koung ea ho phalla.
2. Grid: likhoerekhoere hangata li na le litšila tse ngata, e le ho netefatsa ts'ebetso e tloaelehileng ea membrane bioreactor, ho hlokahala ho thibela mefuta eohle ea likhoele, slag, pampiri ea litšila le lithōle tse ling ka ntle ho tsamaiso, kahoo hoa hlokahala ho beha. marang-rang pele ho tsamaiso, 'me kamehla hloekisa slag ea grid.
3. Tanka ea taolo: Bongata le boleng ba likhoerekhoere tse bokelletsoeng li fetoha ha nako e ntse e tsamaea. E le ho netefatsa ts'ebetso e tloaelehileng ea mokhoa o latelang oa phekolo le ho fokotsa mojaro oa ts'ebetso, ho hlokahala hore ho lokisoe bongata le boleng ba likhoerekhoere, kahoo tanka ea taolo e entsoe pele e kena tsamaisong ea phekolo ea likokoana-hloko. Tanka ea conditioning e hloka ho hloekisoa sediment kamehla. Letamo la ho laola ka kakaretso le behiloe ho phalla, e leng se ka netefatsang ts'ebetso e tloaelehileng ea tsamaiso ha mojaro o le moholo haholo.
4. Mokokelli oa moriri: Tsamaisong ea phekolo ea metsi, hobane metsi a litšila a bokelitsoeng a bateng a na le moriri o monyenyane le fiber le lithōle tse ling tse ntle tseo marang-rang a ke keng a li thibela ka ho feletseng, e tla baka ho thibela pompo le MBR reactor, kahoo e fokotsa katleho ea kalafo, kahoo membrane bioreactor e hlahisoang ke k'hamphani ea rona e kentsoe pokello ea moriri.
5. Tanka ea ho arabela ea MBR: Ho senyeha ha lintho tse silafatsang le ho arohana ha seretse le metsi ho etsoa ka tanka ea MBR reaction. E le karolo ea mantlha ea sistimi ea kalafo, tanka ea karabelo e kenyelletsa likolone tsa likokoana-hloko, likarolo tsa membrane, sistimi ea pokello ea metsi, sistimi ea litšila le sistimi ea aeration.
6. Sesebelisoa sa ho thibela likokoana-hloko: Ho ea ka litlhoko tsa metsi, tsamaiso ea MBR e hlahisoang ke k'hamphani ea rona e entsoe ka sesebelisoa sa ho thibela likokoana-hloko, se ka laolang litekanyetso ka bohona.
7. Sesebelisoa sa ho lekanya: E le ho netefatsa ts'ebetso e ntle ea tsamaiso, tsamaiso ea MBR e hlahisoang ke k'hamphani ea rona e sebelisa lisebelisoa tsa metering tse kang li-flow meter le metsi a metsi ho laola litekanyo tsa tsamaiso.
8. Sesebelisoa sa ho laola elektronike: lebokose la ho laola motlakase le kenngoa ka kamoreng ea thepa. E laola haholo-holo pompo ea ho kenya, fene le pompo e monyang. Taolo e fumaneha ka mekhoa ea matsoho le ea othomathiki. Tlas'a taolo ea PLC, pompo ea metsi e kenang e sebetsa ka bo eona ho latela boemo ba metsi ba letamo le leng le le leng la karabelo. Ts'ebetso ea pompo ea ho hula e laoloa ka nakoana ho latela nako e behiloeng esale pele. Ha metsi a letamo la MBR a le tlase, pompo ea ho hula e emisa ka bo eona ho sireletsa kopano ea filimi.
9. Letamo le hlakileng: ho latela palo ea metsi le litlhoko tsa basebelisi.
Mefuta ea li-membrane tsa MBR
Likarolo ho MBR (membrane bioreactor) li arotsoe haholo ka mefuta e latelang, e 'ngoe le e' ngoe e na le litšobotsi tse ikhethang:
Hollow fiber membrane:
Sebopeho sa 'mele: Lera le sekoti la fiber ke sebopeho sa bongata, se entsoeng ka likete tsa likhoele tse nyenyane tse sekoti, ka hare ho fiber ke mocha oa metsi, ka ntle ke metsi a litšila a lokelang ho hloekisoa.
Likarolo: Boima ba sebaka se phahameng: ho na le sebaka se seholo sa membrane holim'a bophahamo ba yuniti, ho etsa hore thepa e kopane le maoto a manyane. Ho hlatsuoa ha khase ho loketseng: Bokaholimo ba filimi bo ka hlatsuoa ka kotloloho ka aeration, e thusang ho fokotsa tšilafalo ea lera.
Ho bonolo ho e kenya le ho e nkela sebaka: Moralo oa modular bakeng sa tlhokomelo e bonolo le lintlafatso.
Kabo ea boholo ba pore e tšoana: phello ea karohano e ntle, 'me tekanyo ea ho boloka lintho tse emisitsoeng le likokoana-hloko li phahame.
Classification: ho kenyelletsa filimi ea likharetene le filimi e bataletseng, filimi ea likharetene e atisa ho sebelisoa bakeng sa MBR e ka tlas'a metsi, filimi e bataletseng e loketse MBR e ka ntle.
Filimi e bataletseng:
Sebopeho sa 'mele: Diaphragm e tsitsitse holim'a setšehetso, 'me mahlakore a mabeli ka ho latellana ke metsi a litšila a lokelang ho hloekisoa le mokelikeli o phunyeletsang.
Likaroloana:
Sebopeho se tsitsitseng: diaphragm e boreleli, matla a phahameng a mochine, ha ho bonolo ho fetoha, bokhoni bo matla ba ho hatella.
Phello e ntle ea ho hloekisa: Bokaholimo bo bonolo ho hloekisa, 'me litšila li ka tlosoa ka katleho ka ho hloekisa lik'hemik'hale le ho hohla 'mele.
Apara Khanyetso: Ts'ebetsong ea nako e telele, seaparo sa sefahleho sa filimi se senyenyane, 'me bophelo ba tšebeletso bo batla bo le telele.
E loketse karohano e tiileng-metsi: phello ea ho emisa ea taba e emisitsoeng ka likaroloana tse kholo e ntle haholo.
E loketse merero e meholo: Moralo oa modular o bonolo ho atolosoa mme o loketse lits'ebeletso tse kholo tsa ho hloekisa likhoerekhoere.
Filimi ea Tubular:
Sebopeho sa 'mele: Thepa ea membrane e phuthetsoe holim'a' mele oa tšehetso ea tubular, 'me metsi a litšila a phalla ka har'a tube ebe a kenella ka mokelikeli ho tloha leboteng la tube.
Likaroloana:
Bokhoni bo matla ba ho thibela tšilafalo: Moralo oa mocha oa phallo o ka hare o thusa ho theha moferefere le ho fokotsa ho kenngoa ha litšila holim'a lera.
Bokhoni bo botle ba ho itlhoekisa: ho phalla ha metsi ka lebelo le phahameng ka har'a tube ho thusa ho hlatsoa lera le ho fokotsa tšilafalo ea lera.
Ikamahanya le boemo bo phahameng ba metsi a litšila: khatello e phahameng ea lintho tse emisitsoeng le lintho tse nang le likhoele li na le mokhoa o betere oa kalafo.
Tlhokomelo e bonolo: Ha karolo e le 'ngoe ea membrane e senyehile, e ka nkeloa sebaka ka thoko, ntle le ho ama ts'ebetso ea sistimi ka kakaretso.
Filimi ea Ceramic:
Sebopeho sa 'mele: filimi ea porous e entsoeng ka thepa e sa tloaelehang (e kang alumina, zirconia, joalo-joalo), e nang le mohaho o tsitsitseng o thata.
Likaroloana:
Botsitso bo botle ba lik'hemik'hale: bo hanyetsanang le asiti, alkali, solvents organic le mocheso o phahameng, o loketseng maemo a thata a ho hloekisa metsi a litšila a indasteri.
Ho hanyetsa ho roala, ho thibela tšilafalo: bokaholimo bo boreleli, ha ho bonolo ho monya lintho tse phelang, sekhahla se phahameng sa ho hlaphoheloa ka mor'a ho hloekisa, bophelo bo bolelele.
Phapang e nepahetseng le e laolehang: ho nepahala ho phahameng karohano, e loketseng karohano e ntle le ho tlosa litšila tse itseng.
Matla a phahameng a mochine: a hanyetsanang le ho senya, a loketse ts'ebetso ea khatello e phahameng le ho hlatsuoa khafetsa.
Ho hlophisoa ka boholo ba lesoba:
Ultrafiltration membrane: The aperture e nyenyane (hangata pakeng tsa 0.001 le 0.1 microns), haholo-holo ho tlosa libaktheria, likokoana-hloko, li-colloids, macromolecular organic matter joalo-joalo.
Microfiltration membrane: Leqhubu le leholo hanyenyane (li ka ba 0.1 ho isa ho 1 micron), haholo-holo le nka lintho tse tiileng tse fanyehiloeng, likokoana-hloko le lintho tse phelang tse macromolecular.
Ho arola ka ho beha:
Ho qoelisoa: Karolo ea lera e qoelisoa ka kotloloho mokelikeli o tsoakiloeng ka har'a bioreactor, 'me mokelikeli o kenang o ntšoa ka ho monya kapa ho ntšoa ha khase.
Ka ntle: Mojule oa membrane o behiloe ka thoko ho bioreactor. Mokelikeli o lokelang ho phekoloa o hatelloa ke pompo 'me o phalla ka har'a mojule oa lera. Mokelikeli o arohaneng oa metsi le mokelikeli o teteaneng o bokelloa ka thoko.
Ka kakaretso, mefuta ea lera ho MBR e fapane ebile e na le litšobotsi tsa eona, 'me khetho ea lera e itšetlehile ka thepa e khethehileng ea metsi a litšila, litlhoko tsa phekolo, tekanyetso ea moruo, maemo a ts'ebetso le tlhokomelo le lintlha tse ling. Baqapi le basebelisi ba hloka ho etsa khetho e nepahetseng ho latela maemo a nnete ho netefatsa ts'ebetso e ntle le e tsitsitseng ea sistimi ea MBR.
Karolo ea MBR membrane bioreactor ho hloekisa metsi a litšila
Karolo ea tsamaiso ea MBR ho hloekisa likhoerekhoere e bonahala haholo-holo likarolong tse latelang:
Karohano e sebetsang hantle e tiileng-metsi. MBR e sebelisa lera ho fihlela karohano e sebetsang hantle ea metsi a tiileng, e ntlafatsa haholo boleng ba metsi a litšila, e haufi le lefela le litšila, le ho tlosa libaktheria le livaerase haholo.
Maemo a phahameng a likokoana-hloko. MBR e khona ho boloka sebaka se phahameng sa sludge se kentsoeng le ho eketsa boima ba tlhaho ea phekolo ea likokoana-hloko, kahoo e fokotsa sebaka sa sebaka sa ho hloekisa metsi a litšila.
Fokotsa seretse se feteletseng. Ka lebaka la phello ea ho khaoha ha MBR, tlhahiso ea litšila tse setseng e ka fokotseha 'me litšenyehelo tsa phekolo ea seretse li ka fokotsoa. 34
Ho tlosoa ka katleho ha ammonia nitrogen. Sistimi ea MBR e ka ts'oara likokoana-hloko ka potoloho e telele ea moloko, joalo ka libaktheria tsa nitrifying, e le ho senya ammonia nitrogen ka metsing.
Boloka sebaka le ho fokotsa tšebeliso ea matla. Sistimi ea MBR ka karohano e sebetsang ea metsi a tiileng le matla a bioenrichment, nako ea ho lula ha hydraulic ea yuniti ea kalafo e khutsufatsoa haholo, sebaka sa bioreactor se fokotsehile ka tsela e ts'oanang, mme ts'ebeliso ea matla ea yuniti ea kalafo le eona e fokotsehile ka tsela e ts'oanang ka lebaka la ts'ebetso e phahameng ea ts'ebetso. lera.
Ntlafatsa boleng ba metsi. Sistimi ea MBR e fana ka litšila tsa boleng bo holimo tse fihlelang maemo a thata a ho qhala kapa litlhokahalo tsa tšebeliso hape.
Ka kakaretso, MBR membrane bioreactor e phetha karolo ea bohlokoa ho hloekisa likhoerekhoere, ho kenyelletsa le karohano e sebetsang e tiileng ea metsi, ho eketsa mahloriso a likokoana-hloko, ho fokotsa litšila tse setseng, ho tlosa ammonia nitrogen ka katleho, ho boloka sebaka le ho fokotsa tšebeliso ea matla, joalo-joalo Ke likhoerekhoere tse sebetsang hantle le tsa moruo. theknoloji ea lisebelisoa.
Sebaka sa ts'ebeliso ea membrane ea MBR
Ho elella bofelong ba lilemo tsa bo-1990, membrane bioreactor (MBR) e kene mothating oa ts'ebeliso e sebetsang. Matsatsing ana, li-membrane bioreactors (MBR) li se li sebelisoa haholo mafapheng a latelang:
1. Tlhoekiso ea likhoerekhoere litoropong le tšebeliso ea metsi hape meahong
Ka 1967, setsi sa ho hloekisa metsi a litšila se sebelisang mokhoa oa MBR se ile sa hahoa ke k'hamphani ea United States, e neng e phekola 14m3 / d ea metsi a litšila. Ka 1977, tsamaiso ea likhoerekhoere e ile ea sebelisoa hape mohahong o phahameng o phahameng Japane. Bohareng ba lilemo tsa bo-1990, ho ne ho e-na le limela tse joalo tse 39 tse sebetsang Japane, tse nang le matla a ho phekola ho fihlela ho 500m3 /d, le mehaho e fetang 100 e phahameng e sebelisang MBR ho hloekisa likhoerekhoere ho khutlela litseleng tse bohareng tsa metsi.
2. Phekolo ea metsi a litšila ea indasteri
Ho tloha lilemong tsa bo-1990, lintho tsa phekolo ea MBR li ntse li tsoela pele ho atoloha, ho phaella tabeng ea ho sebelisoa hape ha metsi, phekolo ea likhoerekhoere tsa mantle, kopo ea MBR ho hloekisa metsi a litšila a indasteri e boetse e amehile haholo, joalo ka phekolo ea metsi a litšila a indasteri ea lijo, metsi a litšila a metsi, metsi a litšila a metsi. , tlhahiso ea litlolo metsi a litšila, metsi a litšila a dae, metsi a litšila a petrochemical, a fumane liphello tse ntle tsa phekolo.
3. Ho hloekisa metsi a nooang a silafetseng
Ka tšebeliso e pharaletseng ea manyolo a naetrojene le chefo e bolaeang likokoanyana temong, metsi a nooang le ’ona a silafalitsoe ka tekanyo e sa tšoaneng. Bohareng ba lilemo tsa bo-1990, k'hamphani e ile ea hlahisa ts'ebetso ea MBR ka mesebetsi ea ho tlosa naetrojene ea likokoana-hloko, ho thibela likokoanyana le ho tlosoa ha moferefere ka nako e le 'ngoe, motsoako oa naetrojene ka har'a metsi a litšila o ka tlaase ho 0.1mgNO2 / L,' me khatello ea chefo e bolaeang likokoanyana e fokotsehile. ho feta 0.02μg/L.
4. Phekolo ea likhoerekhoere tsa mantle
Likahare tsa lintho tse phelang ka har'a likhoerekhoere tsa mantle li phahame haholo, mokhoa oa ho phekola oa denitrification oa setso o hloka hore ho be le sludge e ngata, 'me karohano ea metsi a tiileng ha e tsitsa, e amang phello ea phekolo ea thuto e phahameng. Ho hlaha ha MBR ho rarolla bothata bona hantle, 'me ho etsa hore ho khonehe ho phekola likhoerekhoere tsa mantle ka ho toba ntle le ho hlapolloa.
5. Phekolo ea leachate ea lithōle / manyolo
Letlapa la ho qhala / manyolo ka litlama le na le lintho tse ngata tse silafatsang, 'me boleng ba eona le bongata ba metsi li fapana ho ea ka maemo a leholimo le maemo a ts'ebetso. Theknoloji ea MBR e ne e sebelisoa limela tse ngata tsa likhoerekhoere pele ho 1994. Ka ho kopanya theknoloji ea MBR le RO, eseng feela SS, lintho tse phelang le naetrojene li ka tlosoa, empa le letsoai le litšepe tse boima li ka tlosoa ka katleho. MBR e sebelisa motsoako oa tlhaho oa libaktheria ho pshatla li-hydrocarbon le metsoako ea chlorine ka har'a leachate le ho tšoara litšila ka makhetlo a 50 ho isa ho a 100 ho feta likarolo tse tloaelehileng tsa ho hloekisa metsi a litšila. Lebaka la phello ena ea phekolo ke hore MBR e ka boloka libaktheria tse sebetsang hantle haholo 'me ea finyella motsoako oa baktheria oa 5000g/m2. Tekong ea mofofisi, COD ea mokelikeli o kenang ke makholo a 'maloa ho isa ho 40000mg/L, mme sekhahla sa ho tlosa litšila se feta 90%.
Tebello ea nts'etsopele ea membrane ea MBR:
Libaka tse ka sehloohong le litaelo tsa tšebeliso
K. Ntlafatso ea litsi tse ntseng li le teng tsa ho hloekisa likhoerekhoere tsa litoropong, haholo-holo limela tsa metsi tseo boleng ba tsona ba litšila bo leng thata ho fihlella maemo kapa tseo phallo ea tsona ea kalafo e eketsehang haholo le eo sebaka sa eona se ke keng sa atolosoa.
B. Libaka tsa bolulo tse se nang tsamaiso ea marang-rang ea drainage, joalo ka libaka tsa bolulo, libaka tsa bahahlauli, libaka tse ntle, joalo-joalo.
C. Libaka kapa libaka tse nang le litlhoko tsa ts'ebeliso ea likhoerekhoere, joalo ka lihotele, litlhatsoetso tsa likoloi, lifofane tsa baeti, matloana a tsamaeang, joalo-joalo, li fana ka papali e felletseng ho litšobotsi tsa MBR, joalo ka sebaka se senyenyane sa fatše, lisebelisoa tse kopanetsoeng, taolo ea othomathiki, ho feto-fetoha ha maemo le boiketlo. .
D. Mahlahahlaha a phahameng, a chefo, a thata ho senya phekolo ea metsi a litšila a indasteri. Joalo ka pampiri, tsoekere, joala, letlalo, mafura a maiketsetso a acid le liindasteri tse ling, ke ntlha e tloaelehileng ea tšilafalo ea mohloli. MBR e khona ho hloekisa metsi a litšila hantle a ke keng a finyella maemo a tloaelehileng a ho hloekisa le ho hlokomela tšebeliso hape.
E. Phekolo ea leachate le ho sebelisoa hape.
F. Tšebeliso ea limela tse nyenyane tsa likhoerekhoere (liteishene). Litšobotsi tsa theknoloji ea membrane li loketse haholo ho phekola likhoerekhoere tse nyane.
Sistimi ea Membrane bioreactor (MBR) e fetohile e 'ngoe ea theknoloji e ncha ea ho hloekisa metsi a litšila le tšebeliso ea metsi a litšila ka lebaka la boleng ba metsi a hloekileng, a hlakileng le a tsitsitseng. Melatong ea kajeno ea tikoloho ea metsi e ntseng e eketseha, MBR e bonts'itse bokhoni ba eona bo boholo ba nts'etsopele, 'me e tla ba tlholisano e matla ho nkela theknoloji ea khale ea ho hloekisa metsi a litšila nakong e tlang.