1. Keeb kwm ntawm kev txhim kho txheej txheem
Ib txwmactivated sludge txheej txheemyog cov paub tab thiab muaj peev xwm ua tiav kev kho mob zoo. Txawm li cas los xij, lawv feem ntau xav tau thaj av loj, peev peev loj, thiab nthuav tawm tsis zoo rau kev hloov pauv ntawm cov dej muaj txiaj ntsig zoo thiab muaj nuj nqis.
Cov txheej txheem Biofilmmuab kev ruaj ntseg zoo dua, muaj zog tiv thaiv kev poob siab, cov hneev taw me me, thiab tshem tawm cov organic teeb meem zoo. Txawm li cas los xij, lawv ntsib teeb meem xws li clogging ntawm lim xov xwm thiab teeb meem hauv kev saib xyuas.
CovTsiv txaj Biofilm Reactor (MBBR)txheej txheem tau tsim nyob rau hauv lub lig 1980s nyob rau hauv Teb chaws Europe los ua ke lub zog ntawm ob lub technologies thaum kov yeej lawv cov kev txwv tseem ceeb. Tom qab ntawd nws tau dhau los ua cov cuab yeej siv hluav taws xob zoo hybrid.
2. Txheej txheem txheej txheem
Nyob rau hauv MBBR systems, buoyant suspended carriers nrog ib tug ceev ze ntawm cov dej yog ntxiv rau lub reactor. Los ntawm kev sib xyaw aeration thiab hydraulic, cov cab kuj tseem nyob twj ywm hauv kev ua haujlwm tas mus li, ua kom pom kev sib cuag ntawm cov dej khib nyiab thiab biofilm.
Cov kab mob kis mus rau sab hauv thiab sab nraud ntawm cov neeg nqa khoom, tsim cov cheeb tsam nrog aerobic, anoxic, thiab anaerobic mob. Qhov no ua rau tib lub sijhawm nitrification thiab denitrification, txhim kho ob qho tib si organic tshem tawm thiab txo nitrogen.
MBBR Tank-1
MBBR Tank-2
3. Cov yam ntxwv tshwj xeeb
- Compact footprint:Yuav tsum tsuas yog kwv yees li 20% ntawm lub tank ntim ntawm cov txheej txheem activated sludge.
- Kev kho qis:Tsis tas yuav tsum muaj sludge recirculation lossis rov qab ntxuav; cov cab kuj tsis clog yooj yim.
- High load kam rau ua:Muaj peev xwm tswj tau cov organic loading tus nqi siab thaum tuav ruaj khov effluent zoo.
- High efficiency:Kev siv hluav taws xob tsawg thiab kev tswj xyuas yooj yim, haum rau ob qho tib si tshiab kev teeb tsa thiab rov ua dua tshiab.
4. Yam tseem ceeb cuam tshuam
Carrier Properties:Should have a density close to water, large specific surface area, strong biofilm affinity, and good fluidization behavior.
Dissolved Oxygen (DO):Yuav tsum tau khaws cia rau hauv qhov kev pom zoo (feem ntau Ntau dua lossis sib npaug li 2 mg / L) kom sib npaug nitrification thiab denitrification thaum tsis txhob siv lub zog tsis tsim nyog.
Hydraulic Retention Time (HRT):Influences sib cuag efficiency ntawm cov organic teeb meem thiab microorganisms; yuav tsum tau optimized raws li influent yam ntxwv.
Kub thiab pH:Nitrifying kab mob ua tau zoo tshaj plaws ntawm 20-30 degree, denitrifying kab mob ntawm 20-40 degree; zoo pH yog 6.5-8.5.
Lwm yam tseem ceeb:Huab cua- rau- dej piv, muaj zog turbidity, COD load, cov khoom noj muaj txiaj ntsig, thiab muaj cov tshuaj lom tuaj yeem cuam tshuam kev ua haujlwm.
5. Daim ntawv thov xwm txheej
International:Siv dav hauv kev kho dej hauv nroog thiab kev lag luam, suav nrog cov ntawv sau thiab ntawv, kev ua zaub mov, slaughterhouses, thiab roj refining. Tshaj li ib puas puv - nplai MBBR- cov chaw kho mob tau tsim thoob ntiaj teb.
Tuam Tshoj:Kev tshawb fawb feem ntau yog nyob rau hauv chav kuaj lossis theem sim, nrog rau me me - cov ntawv thov engineering ntau dua. Kev loj hlob ntawm
tshiab tshem tawm cov cab kuj thiab scaling - mus txog rau tag nrho cov ntawv thov kev lag luam tseem nyob hauv thaj chaw uas muaj peev xwm loj.