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Membrane Bioreactor MBR Package System Cov dej phwj tuaj kho cov nroj tsuag
Lub hauv paus ntsiab lus ua haujlwm ntawm mbr membrane bioreactor
MBR membrane bioreactor (MBR) yog ib txoj kev kho dej khib nyiab zoo uas ua ke nrog cov tshuab cais tawm thiab cov tshuab siv tshuaj lom neeg. Nws txoj haujlwm ua haujlwm feem ntau yog nyob ntawm cov ntsiab lus hauv qab no:
Membrane sib cais tshuab: MBR membrane yog sib cais los ntawm ultrafiltration los yog microfiltration membrane technology, hloov lub thib ob sedimentation tank thiab pa pom chav nyob rau hauv cov tsoos dej phwj txheej txheem. Cov thev naus laus zis no tuaj yeem cuam tshuam cov sludge thiab macromolecular organic teeb meem, kom ua tiav cov kua dej sib cais.
High-efficiency solid-kua sib cais: Lub high-efficiency solid-kua sib cais muaj peev xwm ntawm MBR membrane bioreactor ua rau cov dej effluent zoo zoo, tshem tawm cov teeb meem thiab turbidity ze rau xoom, thiab tuaj yeem ntes cov pa phem xws li E. coli. Cov dej ntws zoo tom qab kev kho mob yog pom tseeb zoo dua rau cov txheej txheem dej khib nyiab ib txwm siv, thiab nws yog qhov siv tau zoo thiab siv nyiaj siv hluav taws xob siv hluav taws xob rov ua dua tshiab.
Kev ua kom zoo ntawm kev kho mob: MBR membrane cov txheej txheem zoo heev ntxiv dag zog rau kev ua haujlwm ntawm bioreactor los ntawm kev siv tshuab sib cais membrane, thiab yog ib qho kev cog lus tshiab tshaj plaws kev kho dej khib nyiab thev naus laus zis piv nrog cov txheej txheem tshuaj lom neeg. Nws muaj cov txiaj ntsig zoo xws li kev tshem tawm cov pa phem, muaj zog tiv thaiv sludge o, ruaj khov thiab txhim khu kev qha effluent zoo.
Cov yam ntxwv ntawm MBR membrane txheej txheem cov khoom siv dej phwj hauv tsev muaj xws li kev tshem tawm cov pa phem, muaj zog tiv thaiv sludge o, ruaj khov thiab txhim khu kev qha cov dej tsis zoo, cov tshuab kaw ntawm daim nyias nyias kom tsis txhob poob ntawm cov kab mob, thiab cov sludge siab tuaj yeem. yuav khaws cia hauv bioreactor.
MBR membrane bioreactor los ntawm cov ntsiab lus saum toj no, kom ua tiav cov dej phwj zoo thiab ruaj khov, siv dav hauv kev kho dej phwj hauv tsev, kev kho dej khib nyiab thiab lwm yam haujlwm.
Kev sib xyaw ntawm MBR membrane bioreactor
Membrane bioreactor (MBR) system feem ntau yog tsim los ntawm cov hauv qab no:
1. Dej inlet zoo: lub qhov dej inlet yog nruab nrog ib tug overflow chaw nres nkoj thiab dej inlet rooj vag. Nyob rau hauv rooj plaub uas cov dej ntau tshaj qhov system load los yog cov kev kho mob muaj kev huam yuaj, lub qhov rooj dej inlet kaw, thiab cov dej phwj tuaj ncaj qha mus rau hauv tus dej los yog lub nroog cov yeeb nkab network nyob ze los ntawm lub overflow chaw nres nkoj.
2. Daim phiaj: cov dej phwj tuaj feem ntau muaj cov khib nyiab ntau, txhawm rau ua kom muaj kev ua haujlwm zoo ntawm daim nyias nyias bioreactor, nws yog ib qho tsim nyog los cuam tshuam txhua yam fibers, slag, cov ntawv pov tseg thiab lwm cov khib nyiab sab nraud, yog li nws yuav tsum tau teeb tsa daim phiaj ua ntej qhov system, thiab tsis tu ncua ntxuav daim phiaj slag.
3.Regulation tank: Qhov ntau thiab zoo ntawm cov dej phwj tuaj hloov nrog lub sijhawm. Txhawm rau kom ntseeg tau tias kev ua haujlwm ib txwm muaj ntawm cov kev kho mob tom ntej thiab txo qis kev ua haujlwm, nws yog ib qho tsim nyog yuav tsum tau kho qhov ntau thiab qhov zoo ntawm cov dej phwj tuaj, yog li kev tswj hwm lub tank yog tsim ua ntej nkag mus rau hauv kev kho mob lom. Lub tank txias yuav tsum tau ntxuav cov av tsis tu ncua. Lub pas dej regulating feem ntau yog teem kom dhau, uas tuaj yeem ua kom lub cev ua haujlwm ib txwm muaj thaum lub load loj dhau.
4. Cov khoom siv plaub hau: Hauv cov dej kho dej, vim tias cov dej khib nyiab khaws cia muaj cov plaub hau me me thiab fiber ntau thiab lwm cov khib nyiab zoo uas daim phiaj tsis tuaj yeem cuam tshuam tag nrho, nws yuav ua rau muaj kev cuam tshuam rau lub twj tso kua mis thiab MBR reactor, yog li txo qis. kev kho mob efficiency, yog li cov membrane bioreactor tsim los ntawm peb lub tuam txhab tau raug ntsia plaub hau collector.
5. MBR cov tshuaj tiv thaiv tank: Degradation ntawm cov organic pollutants thiab kev sib cais ntawm av nkos thiab dej yog nqa tawm nyob rau hauv lub MBR tshuaj tiv thaiv tank. Raws li lub hauv paus tseem ceeb ntawm txoj kev kho mob, cov tshuaj tiv thaiv tank muaj xws li microbial colonies, membrane cov khoom, dej sau system, effluent system, thiab aeration system.
6. Cov khoom siv tshuaj tua kab mob: Raws li qhov yuav tsum tau ua ntawm cov dej, MBR system tsim los ntawm peb lub tuam txhab yog tsim los ntawm cov khoom siv tshuaj tua kab mob, uas tuaj yeem tswj tau qhov ntau npaum li cas.
7. Kev ntsuas cov cuab yeej: txhawm rau ua kom lub cev ua haujlwm zoo, MBR system tsim los ntawm peb lub tuam txhab siv cov cuab yeej ntsuas ntsuas xws li cov ntsuas dej ntws thiab cov ntsuas dej los tswj qhov tsis muaj qhov system.
8. Cov khoom siv hluav taws xob tswj hluav taws xob: hluav taws xob tswj lub thawv tau nruab rau hauv cov khoom siv hauv chav. Nws tsuas yog tswj cov twj tso kua mis, kiv cua thiab nqus twj. Kev tswj muaj nyob rau hauv phau ntawv thiab tsis siv neeg cov ntaub ntawv. Raws li PLC tswj, lub twj tso kua dej inlet khiav tau raws li qib dej ntawm txhua lub pas dej ua ke. Kev khiav hauj lwm ntawm lub tshuab nqus tsev twj yog tswj tsis tu ncua raws li lub sijhawm preset. Thaum cov dej theem ntawm MBR cov tshuaj tiv thaiv pas dej yog tsawg, lub tshuab nqus tsev twj tso kua mis nres los tiv thaiv cov yeeb yaj kiab sib dhos.
9. Lub pas dej ntshiab: raws li cov dej thiab cov neeg siv khoom xav tau.
Hom ntawm MBR membrane
Membranes hauv MBR (membrane bioreactor) feem ntau muab faib ua cov hauv qab no, txhua tus muaj cov yam ntxwv tshwj xeeb:
Hollow fiber ntau membrane:
Lub cev daim ntawv: Lub hollow fiber membrane yog ib lub nras qauv, muaj ntau txhiab tus hollow fibers, sab hauv ntawm lub fiber yog cov kua channel, sab nraud yog cov dej khib nyiab los kho.
Nta: High area density: muaj qhov loj me me ntawm thaj tsam ntawm ib chav tsev ntim, ua rau cov cuab yeej compact thiab me me hneev taw. Kev ntxuav roj yooj yim: Qhov saum npoo ntawm zaj duab xis tuaj yeem ntxuav ncaj qha los ntawm aeration, uas yuav pab txo qis cov pa phem.
Yooj yim rau nruab thiab hloov: Modular tsim kom yooj yim txij nkawm thiab hloov kho dua tshiab.
Lub pore loj faib yog sib xws: cov nyhuv sib cais yog qhov zoo, thiab qhov khaws cia ntawm cov teeb meem raug tshem tawm thiab cov kab mob yog siab.
Kev faib tawm: suav nrog cov ntaub thaiv zaj duab xis thiab zaj duab xis tiaj tus, kab hlau rhuav zaj duab xis feem ntau yog siv rau submerged MBR, zaj duab xis tiaj yog tsim rau sab nraud MBR.
Flat zaj duab xis:
Lub cev daim ntawv: Lub diaphragm yog tsau rau ntawm kev txhawb nqa, thiab ob sab yog raws li cov dej khib nyiab yuav tsum tau kho thiab cov kua permeating.
Nta:
Cov qauv ruaj khov: du diaphragm, siab txhua yam muaj zog, tsis yooj yim rau deformation, muaj zog compressive muaj peev xwm.
Cov nyhuv tu zoo: Qhov saum npoo yog yooj yim los ntxuav, thiab cov pa phem tuaj yeem raug tshem tawm tau zoo los ntawm kev ntxuav thiab txhuam lub cev.
Hnav tsis kam: Hauv kev ua haujlwm ntev, cov yeeb yaj kiab nto hnav me me, thiab kev pabcuam lub neej yog qhov ntev.
Haum rau kev sib cais-kua kua: qhov cuam tshuam cuam tshuam ntawm cov teeb meem tshem tawm nrog cov khoom loj yog qhov tshwj xeeb zoo heev.
Haum rau cov dej num loj: Cov qauv tsim qauv yooj yim nthuav dav thiab haum rau cov chaw kho dej loj loj.
Tubular zaj duab xis:
Lub cev daim ntawv: Cov ntaub ntawv membrane yog qhwv rau ntawm lub tubular txhawb nqa lub cev, thiab cov dej khib nyiab ntws hauv lub raj thiab nkag mus rau hauv cov kua los ntawm lub raj phab ntsa.
Nta:
Muaj peev xwm tiv thaiv kev ua qias tuaj: Sab hauv ntws channel tsim ua kom yooj yim rau kev tsim cov turbulence thiab txo qhov tso tawm ntawm cov pa phem rau ntawm daim nyias nyias.
Kev tu tus kheej muaj peev xwm zoo: cov kua dej ceev ceev hauv lub raj yuav pab ntxuav cov membrane thiab txo cov pa phem.
Kho kom haum rau cov dej khib nyiab siab: siab siab ntawm cov teeb meem tshem tawm thiab cov teeb meem fibrous muaj peev xwm kho tau zoo dua.
Kev saib xyuas yooj yim: Thaum ib qho kev tiv thaiv ib leeg puas lawm, nws tuaj yeem hloov tau nyias, tsis muaj kev cuam tshuam rau tag nrho cov kev ua haujlwm.
Ceramic zaj duab xis:
Lub cev daim ntawv: ntxeem tau zaj duab xis sintered los ntawm inorganic cov ntaub ntawv (xws li alumina, zirconia, thiab lwm yam), nrog ruaj khov qauv.
Nta:
Kev ruaj ntseg tshuaj zoo heev: tiv taus cov kua qaub, alkali, cov kuab tshuaj organic thiab qhov kub thiab txias, haum rau cov dej khib nyiab hauv kev lag luam hnyav.
Hnav tsis kam, tiv thaiv kev ua qias tuaj: du membrane nto, tsis yooj yim rau nqus cov organic teeb meem, siab flux rov qab tus nqi tom qab ntxuav, lub neej ntev.
Precise thiab controllable aperture: siab sib cais qhov tseeb, haum rau kev sib cais zoo thiab kev tshem tawm cov pa phem.
High mechanical zog: tiv taus kev tawg, haum rau kev ua haujlwm siab thiab nquag rov qab ntxuav.
Classification los ntawm aperture loj:
Ultrafiltration membrane: Lub aperture yog me me (feem ntau ntawm 0.001 thiab 0.1 microns), feem ntau yog tshem tawm cov kab mob, kab mob, colloids, macromolecular organic teeb meem thiab lwm yam.
Microfiltration membrane: Lub aperture yog me ntsis loj (kwv yees li 0.1 txog 1 micron), feem ntau cuam tshuam cov khib nyiab, cov kab mob, thiab qee qhov macromolecular organic teeb meem.
Classification los ntawm qhov chaw:
Immersion: Lub membrane tivthaiv yog immersed ncaj qha rau hauv cov kua sib xyaw hauv bioreactor, thiab cov kua permeable yog muab rho tawm los ntawm suction lossis gas extraction.
Sab nraud: Lub membrane module yog teem cais los ntawm bioreactor. Cov kua yuav tsum tau kho yog pressurized los ntawm lub twj tso kua mis thiab ntws los ntawm lub membrane module. Cov kua permeating sib cais thiab cov kua concentrated yog sib cais.
Hauv cov ntsiab lus, cov membrane hom hauv MBR muaj ntau haiv neeg thiab muaj lawv tus kheej cov yam ntxwv, thiab kev xaiv ntawm daim nyias nyias yog nyob ntawm cov khoom pov tseg tshwj xeeb, kev kho mob, kev siv nyiaj txiag, kev ua haujlwm thiab kev saib xyuas thiab lwm yam. Cov neeg tsim qauv thiab cov neeg siv yuav tsum xaiv qhov tsim nyog raws li qhov xwm txheej tiag tiag kom ntseeg tau tias kev ua haujlwm zoo thiab ruaj khov ntawm MBR system.
Lub luag haujlwm ntawm MBR membrane bioreactor hauv kev kho dej khib nyiab
Lub luag haujlwm ntawm MBR system hauv kev kho dej phwj yog feem ntau cuam tshuam hauv cov hauv qab no:
Kev sib cais-kua kua zoo. MBR siv daim nyias nyias kom ua tiav cov kua dej sib cais, txhim kho cov dej ntws zoo, ze rau xoom tshem tawm cov teeb meem thiab turbidity, thiab tshem tawm cov kab mob thiab kab mob.
High microbial concentration. MBR muaj peev xwm tswj tau qhov siab ntawm cov activated sludge thiab nce cov organic load ntawm kev kho mob lom, yog li txo qhov hneev taw ntawm qhov chaw kho dej khib nyiab.
Txo cov sludge ntau dhau. Vim tias qhov cuam tshuam ntawm MBR, cov khoom seem ntawm cov sludge tuaj yeem raug txo kom tsawg thiab cov nqi kho cov sludge tuaj yeem txo. 34
Kev tshem tawm zoo ntawm ammonia nitrogen. MBR system tuaj yeem ntes cov kab mob nrog rau lub voj voog ntev, xws li cov kab mob nitrifying, thiaj li ua kom zoo degrade ammonia nitrogen hauv dej.
Txuag qhov chaw thiab txo kev siv hluav taws xob. MBR system los ntawm kev sib cais ua kua-kua thiab bioenrichment, lub sijhawm hydraulic chaw nyob ntawm chav kho mob yog luv heev, hneev taw ntawm bioreactor raug txo qis, thiab lub zog noj ntawm chav kho mob kuj raug txo vim qhov ua haujlwm siab ntawm daim nyias nyias.
Txhim kho dej kom zoo. MBR cov tshuab muab cov dej ntws zoo uas ua tau raws li cov qauv kev tso tawm nruj dua lossis rov siv dua.
Hauv cov ntsiab lus, MBR membrane bioreactor ua lub luag haujlwm tseem ceeb hauv kev kho dej phwj tuaj, suav nrog kev sib cais ntawm cov kua dej kom zoo, ua kom cov microbial concentration, txo cov sludge seem, tshem tawm cov ammonia nitrogen zoo, txuag chaw thiab txo kev siv hluav taws xob, thiab lwm yam. kev siv technology.
Daim ntawv thov teb ntawm MBR membrane
Nyob rau xyoo 1990s, daim nyias nyias bioreactor (MBR) tau nkag mus rau theem siv tswv yim. Tam sim no, membrane bioreactors (MBR) tau siv dav hauv cov haujlwm hauv qab no:
1. Kev kho cov dej phwj hauv nroog thiab rov siv dej hauv cov tsev
Xyoo 1967, lub chaw kho dej khib nyiab siv cov txheej txheem MBR tau tsim los ntawm ib lub tuam txhab hauv Tebchaws Meskas, uas kho 14m3 / d ntawm cov dej khib nyiab. Xyoo 1977, cov dej phwj tuaj rov siv dua tau muab tso rau hauv lub tsev siab siab hauv Nyij Pooj. Nyob rau hauv nruab nrab-1990s, muaj 39 cov nroj tsuag zoo li no nyob rau hauv Nyiv, muaj peev xwm kho tau txog li 500m3 / d, thiab ntau tshaj 100 lub tsev siab siab tau siv MBR los kho cov dej phwj tuaj rau hauv nruab nrab cov dej ntws.
2. Muaj kev kho dej khib nyiab
Txij li thaum xyoo 1990, MBR cov khoom siv kho mob txuas ntxiv nthuav dav ntxiv, ntxiv rau kev rov siv dej, kev kho cov dej phwj tuaj, MBR daim ntawv thov hauv kev kho dej khib nyiab kuj tseem muaj kev txhawj xeeb, xws li kev kho cov khoom noj khoom haus dej khib nyiab, dej ua dej khib nyiab, dej khib nyiab hauv dej. , tshuaj pleev ib ce ntau lawm dej khib nyiab, dye wastewater, petrochemical wastewater, tau txais kev kho mob zoo.
3. Micro-polluted haus dej purification
Nrog rau kev siv dav ntawm nitrogen chiv thiab tshuaj tua kab hauv kev ua liaj ua teb, cov dej haus kuj tau ua qias tuaj rau ntau qib. Nyob rau hauv nruab nrab-1990s, lub tuam txhab tsim MBR txheej txheem nrog rau kev ua ntawm lom nitrogen tshem tawm, insecticide adsorption thiab turbidity tshem tawm tib lub sij hawm, cov nitrogen concentration nyob rau hauv cov effluent yog tsawg tshaj li 0.1mgNO2 / L, thiab cov tshuaj tua kab concentration tsawg dua. ntau tshaj 0.02 μg / L.
4. Kev kho cov dej phwj tuaj
Cov ntsiab lus ntawm cov organic teeb meem nyob rau hauv fecal dej phwj yog heev siab, cov tsoos denitrification txoj kev kho yuav tsum muaj ib tug siab sludge concentration, thiab cov khoom-kua sib cais yog tsis ruaj khov, uas cuam tshuam cov nyhuv ntawm tertiary kev kho mob. Qhov tshwm sim ntawm MBR daws qhov teeb meem no zoo, thiab ua rau nws tuaj yeem kho cov dej phwj tuaj ncaj qha yam tsis muaj dilution.
5. Kev kho cov av av/fertilizer leachate
Plua plav / compost leachate muaj cov kuab paug siab, thiab nws qhov zoo thiab cov dej sib txawv nrog cov huab cua thiab kev ua haujlwm. MBR thev naus laus zis tau siv rau hauv ntau qhov chaw kho dej phwj ua ntej xyoo 1994. Los ntawm kev sib xyaw ntawm MBR thiab RO thev naus laus zis, tsis tsuas yog SS, organic teeb meem thiab nitrogen tuaj yeem raug tshem tawm, tab sis kuj tseem ntsev thiab cov hlau hnyav tuaj yeem raug tshem tawm zoo. MBR siv cov kab mob tshwm sim los ntawm cov kab mob txhawm rau rhuav tshem cov hydrocarbons thiab cov tshuaj chlorinated hauv cov kua qaub thiab kho cov kab mob ntawm qhov siab ntawm 50 mus rau 100 npaug siab dua li cov chav kho dej khib nyiab. Qhov laj thawj rau qhov kev kho mob no yog tias MBR tuaj yeem khaws cov kab mob zoo heev thiab ua tiav cov kab mob siab ntawm 5000g / m2. Hauv kev sim kev sim, COD ntawm cov kua dej nkag yog ob peb puas mus rau 40000mg / L, thiab kev tshem tawm cov pa phem ntau dua 90%.
Kev loj hlob zeem muag ntawm MBR membrane:
Cov cheeb tsam tseem ceeb thiab cov lus qhia ntawm kev thov
A. Kev kho dua tshiab ntawm cov chaw kho dej hauv nroog uas twb muaj lawm, tshwj xeeb tshaj yog cov nroj tsuag dej uas nws cov dej ntws tsis zoo yog qhov nyuaj kom ua tau raws li tus qauv lossis cov kev kho dej ntws nce zuj zus thiab nws thaj chaw tsis tuaj yeem nthuav dav.
B. Cov chaw nyob tsis muaj qhov dej ntws tawm, xws li thaj chaw nyob, chaw ncig xyuas chaw, chaw zoo nkauj, thiab lwm yam.
C. Cov cheeb tsam lossis cov chaw uas muaj cov dej phwj tuaj yeem siv, xws li tsev so, tsheb ntxuav, cov neeg caij dav hlau, chav dej txawb, thiab lwm yam., muab kev ua si tag nrho rau cov yam ntxwv ntawm MBR, xws li thaj chaw me me, cov khoom siv compact, tsis siv neeg tswj, yooj thiab yooj yim. .
D. High concentration, lom, nyuaj rau degrade industrial wastewater kho. Xws li ntawv, qab zib, cawv, tawv nqaij, hluavtaws fatty acids thiab lwm yam lag luam, yog ib qho chaw ua paug. MBR tuaj yeem kho cov dej khib nyiab zoo uas tsis tuaj yeem ua tau raws li tus txheej txheem ntawm cov txheej txheem kev kho mob thiab paub rov qab siv dua.
E. Landfill leachate kho thiab rov siv dua.
F. Kev siv cov dej phwj me me (chaw nres tsheb). Cov yam ntxwv ntawm cov tshuab membrane yog qhov tsim nyog rau kev kho cov dej phwj me me.
Membrane bioreactor (MBR) system tau dhau los ua ib qho ntawm cov thev naus laus zis tshiab ntawm kev kho cov dej khib nyiab thiab rov siv cov dej khib nyiab vim nws cov dej huv, ntshiab thiab ruaj khov. Nyob rau niaj hnub no cov qauv kev ua dej num nruj zuj zus, MBR tau qhia nws txoj kev loj hlob muaj peev xwm, thiab nws yuav dhau los ua tus neeg sib tw muaj zog los hloov cov cuab yeej siv dej khib nyiab rau yav tom ntej.