1. Pib
Lub txaj txav biofilm reactor (MBBR) tau dhau los ua kev kho dej hauv niaj hnub vim nws qhov kev ua haujlwm siab, kev tsim qauv kev ua haujlwm. Txawm li cas los xij, hauv MBBR tus qauv tsim,Qhov kev xaiv ntawm kev tshaj xov xwm (biofilm cov cab kuj) txav txoj kev-Txoj kev sib xyaw (aeration discs) lossis cov tshuab sib xyaw (tshuab sib xyaw ua haujlwm) -Directly cuam tshuam kev kho mob, kev siv hluav taws xob, thiab cov nqi ua haujlwm.
Kab lus no muab cov kev tsom xam dav ntawm ob txoj kev tsav los ntawm ntau qhov kev xav, suav nrogCov ntsiab cai, kev ua tau zoo sib piv, tus nqi-ua tau zoo, thiab cov ntawv sau npe, Thaum muab kev txiav txim siab scinc11. Lub hauv paus rau phau ntawv
Lub txaj txav biofilm reactor (MBBR) tau dhau los ua kev kho dej hauv niaj hnub vim nws qhov kev ua haujlwm siab, kev tsim qauv kev ua haujlwm. Txawm li cas los xij, hauv MBRBR tsim qauv, kev xaiv ntawm kev xaiv tawm (biofilm cov cab kuj) lossis cov tshuab ua haujlwm (kev siv tshuab hluav taws xob (kev siv hluav taws xob, thiab cov nqi ua haujlwm.
Kab lus no muab cov qauv kev tsom xam ntawm ob txoj kev xav, suav nrog kev txiav txim siab technicum, thiab cov kev sib piv ua tau zoo, thiab daim ntawv thov kev sib piv, thiab daim ntawv thov kev sib piv, thiab daim ntawv thov kev sib piv, thiab daim ntawv thov kev sib piv, thiab cov ntaub ntawv ua haujlwm tau zoo, thiab daim ntawv thov kev sib piv, thiab daim ntawv thov kev sib piv, thiab cov kev sib piv ua kom zoo dua qub los pab cov cav tsim kho MBBRRICD.
2. Cov ntsiab cai ua haujlwm thiab cov tshuab ua haujlwm
2.1 Aeration tsav (AERT precs)
Lub ntsiab lus: Cov npuas zoo (1-3 hli hla kev sib txawv, tsim kom cov lus tawm suab nce mus rau cov lus tawm suab thiab faib cov biofilm.
Cov Nta Tseem Ceeb:
- Cov pa oxygen hloov & sib xyaw: Npuas muab ob qho sib xyaw ua ke thiab ua kom ncaj qha oxygen (ua), ua rau nws zoo tagnrho rau cov txheej txheem aerobic (piv txwv li, bod tshem tawm, nitrification).
- Ntws cov yam ntxwv: Tsim Vortex ncig tab sis tej zaum yuav muaj ib thaj chaw tuag (tshwj xeeb yog nyob ntawm cov cab kuj sau cov nqi).
- Shear Zog Kev Tswj Xyuas: Qis Carrier puas (<0.1 N/m²) due to gentle bubble dynamics, ensuring long-term carrier stability.
Cov Ntawv Thov:
- Cov hlau ntiav (tsawg dua los yog sib npaug rau 5m) hauv aerobic zones.
- Cov txheej txheem xav tau ib txhij oxygenation thiab kev sib xyaw (xws li, cov tsheb khiav tawm hauv nroog / nitrogen tshem tawm).
2.2 kev sib xyaw ua ke (tshuab sib xyaw)
Lub ntsiab lus: Lub cev muaj zog-tsav impellers ua kom axial / radial ntws mus rau forcibly txib cov nqa khoom.
Cov Nta Tseem Ceeb:
- Ntshuam Ntshiab Handing Hydraulic: Tsis hloov cov pa hloov; Yuav tsum tau cais cov ationation (piv txwv li, deep-tank didusers lossis dav hlau aerators).
- Ntws cov yam ntxwv: Superior mixing efficiency, suitable for deep tanks (>5M) lossis cov reactor duab (piv txwv li, anoxic / anaerobic ib cheeb tsam).
- Siab dua shear zog: Kev ua haujlwm kho tshuab yuav ua rau biofilm slughing (0.5-2 n / m²), tsim nyog qes-shear impeller tsim.
Cov Ntawv Thov:
- Deep tanks (>5m) lossis anoxic / anaerobic aav (piv txwv li, denitrification).
- Lub zog-cov haujlwm ntawm lub zog (sib xyaw ua ke tsis muaj zog ntau dua li aeration).
3. Tseem ceeb sib piv
|
Me me |
Aeration tsav |
NEEG KHO TSHUAB |
Lub phivs |
|
Kev Siv Zog |
Siab (0.5-0.7 kwh / m³; aberation dominates nroj tsuag zog) |
Tsawg (0.2-0.3 kwh / m³) |
EPA Zog Qhia |
|
Cov cab kuj faib cov kev faib tawm |
Nruab Nrab (npuas-nyob, muaj peev xwm thaj chaw tuag) |
High (yuam kev sib xyaw, cfd-txheeb xyuas) |
Kev tshawb nrhiav dej (2020) |
|
Shear Force (Aline Pheej Hmas) |
Tsawg (<0.1 N/m², bubble-induced) |
Siab (0.5-2 n / m², impeller-induced) |
Birocrocess Engineering (2019) |
|
Txhawj |
Txwv tsawg dua lossis sib npaug rau 5m (npuas nce velocity constraintions) |
Unlimited (tiag tiag-ntiaj teb cov neeg kis mus txog 20m) |
Asce MBRR tsim qauv |
|
Pa Muaj Peev Xwm Muaj Peev Xwm |
Kev muab khoom ncaj qha (ntau dua los yog sib npaug rau 2 mg / l) |
Yuav tsum tau cais cais |
Cov Kev Kawm Pa (Kla) |
|
Txij Nkawm Muaj Kev Yooj Yim |
Diffuser Clogging (Kev tu txhua xyoo) |
Neeg kho tshuab hnav (cov kabmob / cov kev hloov pauv txhua txhua 3-5 xyoos) |
Kev lag luam O & M ntaub ntawv |
4. Tus nqi-ua hauj lwm (ua neej tshuaj tsom kwm)
|
Tus nqi hom |
Aeration tsav |
NEEG KHO TSHUAB |
|
Tus nqi peev |
Tsawg (tsis muaj tov khoom yuav tsum tau) |
High (tov khoom + thaub qab chav nyob) |
|
Lub Zog Ua Haujlwm |
Siab (0.5-0.7 kwh / m³) |
Tsawg (0.2-0.3 kwh / m³) |
|
Txij Nkawm Cov Nqi |
Nruab nrab (diffuser tu) |
Siab (feem kho kho tshuab ib feem) |
|
10-xyoo tag nrho tus nqi |
Siab dua (lub zog-tseem ceeb) |
Qis dua (cov khoom siv nyiaj tsis zoo-tseem ceeb) |
Tsab ntawv: Hauv cov hluav taws xob loj-cov cheeb tsam, kev sib xyaw txhua lub tshuab yog ntau dua kev lag luam ntev, tuaj yeem ua rau cov txheej txheem oxygen-intensive.
5. Xaiv moj khaum
5.1 Kev Txiav Txim Siab
Cov txheej txheem yuav tsum muaj:
Aerobic (xav tau ua) → saib xyuas ib qho.
Anoxic / anaerobic (piv txwv li, denitricification) → ua ntej sib xyaw.
TANK GEOMETRY:
Qhov tob tsawg dua los yog sib npaug rau 5m → oger diable.
Depth >5M → cov tshuab sib xyaw yuav tsum ua.
Zog Vs. Them Nqi Kev Lag Luam:
Cov nqi hluav taws xob siab → yuag rau kev sib xyaw.
Tsawg tus txheej txheem system → yuag rau aeration.
5.2 Hybrid Cov Txhim Kho
Rau cov neeg tshwj xeeb (piv txwv li, tso tsheb hlau luam aerobic tob), sib txuas:
Hauv qab tshuab sib xyaw(ua kom muaj kev ncua chaw yug menyuam).
Sab saum toj nplua-npuas Aeration(muab ua).
6. Yav Tom Ntej Npaj Txhim Kho
Aberation: Nanobubble aeration, ntse ua cov tswv yim tswj.
Kev sib xyaw: Sib Nqus-Tsav Mixers (xoom neeg siv khoom siv), CFD-ua kom zoo rau impellers
7. Xaus
Aberationexcrels hauv cov tso tsheb hlau luam aerobic ntiav nrog cov pa oxygenation tab sis noj ntau zog.
NEEG KHO TSHUABSuits sib sib zog nqus / anoxic daim ntawv thov nrog qis zog siv zog tab sis yuav tsum muaj cais.
Kev Xaiv Zaum KawgYuav tsum muaj kev ntsuas sib npaug, tsim tank, thiab tus nqi kav, muaj peev xwm yuav tus nqi saws hybrid.
Download lubMBBR tsav xaiv kev xaiv tswv yimRau Txoj Haujlwm Kev Txhawb Nqa: www.juntaIlastic.com
Ntawv Sawv cev:
- EPA cov ntaub ntawv siv tshuab hluav taws xob (MBRBR).
- CFD qauv ntawm MBRBR Hydrodynamics, Kev Tshawb Fawb Dej (2020).
- Biofilm CARRier Aplion Testion, Bioprocess engineering (2019).