MBBR Cov Txheej Txheem Tswj Cov Txheej Txheem
1. Kev tswj qhov kub thiab txias
Lub biofilm reactor system yuav tsum ua haujlwm nyob rau hauv qhov ntsuas kub ntawm 15-35 degree.
2. Dissolved Oxygen (DO) Management
DO concentration cuam tshuam rau cov organic tshem tawm efficiency, tshwj xeeb tshaj yog rau cov as-ham (N/P) tshem tawm daim ntaub ntawv. Cov kev pom zoo DO tswj ntau yam yog:
- Anaerobic cheeb tsam:<0.2 mg/L
- Anoxic tsam: 0.2-0.5 mg/L
- Aerobic zone: Ntau dua lossis sib npaug li 2.0 mg/L
3. Mixed Liquor Suspended Solids (MLSS)
Qhov pom zoo MLSS concentration hauv MBBR aerobic zones yuav tsum tau khaws cia ntawm 3,000-20,000 mg / L. Ob qho tib si siab thiab tsis tshua muaj siab ua rau lub cev ua haujlwm tsis zoo:
- High MLSS: Ua rau cov sludge deposition ntawm biofilm carriers, tsim cov sludge tuab
- Tsawg MLSS: Txo cov nqi degradation thiab tsis muaj peev xwm adsorption rau cov organic soluble
4. Kev cai pH
Cov pH muaj txiaj ntsig yuav tsum tau khaws cia ntawm 6.0-9.0 rau kev pom cov txheej txheem biochemical.
MBBR Kev Tswj Xyuas Txheej Txheem Ua Haujlwm
1. Kev ua haujlwm kub qis
- Thaum kub kub poob qis dua 8℃:
✓ Txo qhov muaj peev xwm kho mob
✓ Ncua sij hawm tuav hydraulic kom ua tiav cov organic degradation
2. Kev hloov raws caij nyoog teb
- Saib xyuas cov dej ntws zoo ze ze thaum lub sijhawm hloov pauv kub
- Siv cov kev ntsuas kho kom raug thaum kuaj pom kev hloov pauv sai sai:
✓ Kho lub peev xwm kho mob
✓ Ua kom lub sijhawm aeration
3. Kev Tiv Thaiv Tshuaj Tiv Thaiv
- nruj me ntsis zam kev qhia txog biocides / tshuaj tua kab mob uas inhibit microbial metabolism
- Tiv thaiv kev cuam tshuam ntawm microbial biological mechanisms uas tuaj yeem ua rau cov dej tsis zoo
4. Ua npuas ncauj tswj
- Rau ua npuas ncauj los ntawm surfactants los yog foaming agents:
✓ Siv cov tshuaj tsuag dej rau kev ua npuas dej
✗ Zam tsis txhob roj-raws li defoamers
✗ Txwv tsis pub silicone -raws li defoaming agents
Cov kev tswj xyuas no ua kom ruaj khov MBBR kev ua haujlwm thaum tswj kev kho mob zoo nyob rau hauv ntau yam xwm txheej.