1. Cov txheej txheem SBR yog dab tsi? Nws ua haujlwm li cas?
CovSequencing Batch Reactor (SBR)txheej txheem, tseem hu uaintermittent aeration activated sludge, kho cov dej khib nyiab hauv batch hauv ib lub reactor. Tsis zoo li tas mus li- cov tshuab ntws, txhua lub SBR tank ua haujlwm sib hloov ua ib qhoaeration phiabthiabthib ob clarifier, tshem tawm cov kev xav tau rau thawj cov dej khib nyiab, sludge rov qab tshuab, thiab feem ntau sib npaug ntawm cov bass.
Saib daim duab 1-1 rau cov txheej txheem ntws.
Kev ua haujlwm ib ntus
SBR system feem ntau suav nrog ntau lub reactors, nrog rau cov dej khib nyiab sib txuas rau txhua chav. Covtsib -stage cycle(tag nrho cov ua nyob rau hauv tib lub tank) suav nrog:
- Sau
- Aeration/Reaction(kev kho mob lom)
- Teeb meem(khoom-kua sib cais)
- Decanting(kho tawm effluent)
- Tsis ua haujlwm(Kev npaj rau lub voj voog tom ntej)
2. Kev sib piv kev ua haujlwm:
SBR vs. Nruam -Flow Activated Sludge (CFAS)
Saib Table 2-1 kom paub sib piv.
3. Qhov zoo ntawm SBR Tshaj CFAS
(1)Integrated txheej txheem nyob rau hauv ib lub tank ib leeg
- SBR ua tiavorganic oxidation, nitrification, denitrification, phosphorus uptake / tso tawmnyob rau hauv ib lub reactor.
- Eliminates xav tau rau:
✓ Cov lus qhia cais
✓ Equalization tanks (feem ntau)
✓ Ntau lub reactors rau kev tshem tawm cov zaub mov
✓ Cov twj tso kua mis ntxiv rau sludge recirculation
(2)Kev ua tau zoo dua nrog cov hneev taw me me
- CFAS yuav tsum muaj cov kais dej loj loj vim yog:
Tsawg BOD₅ concentration hauv kev sib xyaw ua ke → Cov tshuaj tiv thaiv qeeb
Uniform aeration nyob rau hauv plug-flow systems → Suboptimal zog siv
- SBR kev ua sizoo tagnrho plug-flownrog lub sij hawm - sib txawv concentrations, ua tiav:
✓ 30-50% me reactor ntim
✓ 20-40% qis zog noj
(3)Adaptability rau Load/Quality Changes
- CFAS tawm tsam nrog:
Flow variations (taag tank peev)
Stricter effluent standard (txheej txheem tsim)
- SBR hloov tau yooj yim:
✓ Cov tshuaj tiv thaiv / kho / tshem tawm lub sijhawm
✓ Lub sijhawm voj voog los tswj cov khoom hnyav
✓ Cov haujlwm tshiab (xws li, ntxiv cov theem anoxic rau N / P tshem tawm)
(4)Functional Equivalence rau CFAS
- SBR tuaj yeem rov ua duatag nrho CFAS functionality(BOD / N / P tshem tawm) nrog kev ua haujlwm zoo dua.
(5)Tswj cov kua dej zoo
- CFAS tso tawm tsis tu ncua →Kev pheej hmoo ntawm kev tsis ua raws li -
- SBR tso cai:
✓ Batch-los ntawm-batch kev ntsuas dej zoo
✓ Kev kho mob ntxiv yog tias tsis tau raws li cov qauv
✓ Muab pov thawj raws li kev tso tawm