1. Membrane Tank Dej theem tswj
Cov dej theem hauv lub tank membrane yuav tsum tau tswj xyuas500-1000 hli saum lub membrane module ncej.
Ib qho dej qis tuaj yeem ua rau daim nyias nyias kom qhuav thiab nqus cov teeb meem, thaum lub siab ntau dhau tuaj yeem ua rau tsis muaj zog ntawm cov aeration ntawm daim nyias nyias.
2. Aeration Conditions
Qhov ratio ntawm aeration ntws mus rau permeate ntws yuav tsum tau tswj nyob rau hauv12–20:1.
Lub aeration dej theem yuav tsum tau khaws cia50-60 mm siabtshaj li cov kua dej ib puag ncig kom ntseeg tau tias muaj kev sib haum xeeb hauv thaj chaw membrane.
3. Sludge thiab dej zoo tej yam kev mob
Lub MLSS concentration nyob rau hauv lub membrane tank yuav tsum tau khaws cia ntawm5000-8000 mg / L.
Qhov zoo tshaj plaws kev khiav hauj lwm kub yog15-35 ° C, thiab pH yuav tsum nyob hauv5.5–9.0.
Lub sludge ntim index (SVI₃₀) yuav tsum tau tswj nyob rau hauv20–30%los xyuas kom meej zoo sludge settleability thiab lom yam ntxwv.
4. Kev tu thiab tu
Ua haujlwm niaj hnub dej ntws tawm ntawm cov membranestxhua 2-3 hnub, thiab tsis ntev duaib lub lis piam.
Backwashing flow yuav tsum yogob zaug tus tsim permeate ntws, nrog rau ib txwm backwash duration ntawm10 feeb.
Aeration yuav tsumtsis yograug tso tseg thaum yaug dej.
Cov dej qab zib yuav tsum dhau los ntawm akev ruaj ntseg lim nrog 1 µm precision.
5. Transmembrane Siab (TMP) Tswj
Lub TMP rau cov txheej txheem membrane ua haujlwm feem ntau yog los ntawm10-50 kPa.
Thaum TMP mus txog50 kPa, a tshuaj ntxuavyuav tsum tau ua los tiv thaiv ntxiv membrane fouling.
6. Yuav tsum tau kho ua ntej
Pretreatment aims kom tshem tawm cov khib nyiab loj uas tuaj yeem ua rau daim nyias nyias, xws li cov fibers zoo lossis cov plaub hau.
Ib tug rotary mechanical screen nrogqhov qhib me dua 1 mmfeem ntau yog ntsia tau rau ntawm cov dej nyoos inlet.
7. Cov khoom siv thiab cov qauv xaiv
Membrane cov ntaub ntawv thiab cov qauv yuav tsum raug xaiv raws li kev kho mob xav tau.
PVDFyog dav siv vim nws zoo heev tshuaj stability thiab mechanical zog.
Common membrane configurations muaj xws lihollow-fiber, tiaj- ntawv, thiab tubular daim nyias nyias, txhua qhov muab qhov zoo sib xws nyob ntawm kev thov.
8. Anti-fouling Performance
Xaiv MBR daim nyias nyias uas muaj zog tiv thaiv - fouling muaj peev xwm yog qhov tseem ceeb.
Advanced MBR membranes feem ntau suav nrogtshwj xeeb kev kho deg, zoo linanocoatingslos yogkev hloov kho hydrophilic, txhawm rau txhim kho kev tiv thaiv - fouling kev ua tau zoo thiab ua rau lub neej ua haujlwm ntev.