Nws yuav siv sij hawm ntev npaum li cas rau biofilm tsim thaum lub sij hawm qis -kub commissioning nyob rau lub caij ntuj no?
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- Pom pom biofilm ntawm tus cab kuj (pom tau los ntawm qhov muag liab qab) feem ntau yuav siv sijhawm li 7 hnub los tshwm.
- Lub sijhawm xav tau rau lub kaw lus kom ncav cuag kev ua raws cai hauv lub caij ntuj no yog kwv yees li ntawm ib hlis
- Lub sijhawm rau biofilm los ua kom paub tab yog ntev dua. Los ntawm txoj kev pom zoo, kev ua tiav raws caij nyoog (lub caij ntuj no thiab lub caij ntuj sov) yog xav tau rau cov zej zog microbial kom ruaj khov thiab ncav cuag kev loj hlob.
Nws puas tsim nyog ntxiv cov tshuaj microbial rau cov txheej txheem MBBR?
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- Hais lus nruj me ntsis, MBBR tsis tas yuav ntxiv cov tshuaj microbial. Nrog rau qhov zoo tshaj plaws tsis, lub kaw lus muaj peev xwm ntawm natural microbial enrichment. Txawm li cas los xij, nyob rau hauv qee qhov tshwj xeeb cov dej khib nyiab, ntxiv cov kab lis kev cai microbial tuaj yeem suav tias yog ib feem ntawm kev sim kev tshawb fawb lossis kev tshawb fawb kom zoo.
Puas yog MBBR xav tau rov qab ntxuav rau denitrification?
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- Ib qho zoo tshaj plaws ntawm MBBR piv rau cov txheej txheem biofilm ib txwm yog tias nws tsis tas yuav rov qab ntxuav. Cov biofilm hauv MBBR systems ib txwm cais tawm. Raws li kev tshawb fawb los ntawm Zhongqiao Qidi, thaum lub biofilm muaj zog heev, nws secretes ntau extracellular polymeric tshuaj (EPS), ua rau muaj zog adhesion.
- Raws li lub hnub nyoog biofilm, EPS secretion txo qis, adhesion tsis muaj zog, thiab biofilm ib txwm sloughs tawm thaum lub sij hawm txaus ntshai, ua kom muaj chaw rau kev loj hlob biofilm tshiab. Yog li ntawd, tsis muaj phau ntawv los yog mechanical backwashing yog tsim nyog.
Lub hauv paus ntawm MBBR txheej txheem yog dab tsi?
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- Cov txheej txheem MBBR revolves nyob ib ncig ntawm ob lub ntsiab lus tseem ceeb: cov khoom thauj (media) thiab fluidization. Cov cab kuj ua raws li substrates rau kev loj hlob ntawm biofilm.
- Txawm hais tias tsis muaj kev sib koom ua ke ntawm qhov tseem ceeb ntawm cov khoom nqa khoom cuam tshuam rau kev ua haujlwm, cov duab ntawm cov neeg nqa khoom cuam tshuam rau tus cwj pwm fluidization, uas cuam tshuam rau kev kho mob.
Lub hauv paus ntawm MBBR txheej txheem yog dab tsi?
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- Cov txheej txheem MBBR revolves nyob ib ncig ntawm ob lub ntsiab lus tseem ceeb: cov khoom thauj (media) thiab fluidization. Cov cab kuj ua raws li substrates rau kev loj hlob ntawm biofilm.
- Txawm hais tias tsis muaj kev sib koom ua ke ntawm qhov tseem ceeb ntawm cov khoom nqa khoom cuam tshuam rau kev ua haujlwm, cov duab ntawm cov neeg nqa khoom cuam tshuam rau tus cwj pwm fluidization, uas cuam tshuam rau kev kho mob.
MBBR tuaj yeem ua haujlwm ntawm qhov kub thiab txias
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- Raws li cov ntaub ntawv tshawb fawb tam sim no, kev ua haujlwm ruaj khov MBBR tau ua tiav hauv Xinjiang, qhov dej kub nyob ib puag ncig 7-8 degree. Txawm li cas los xij, kev ua haujlwm tshwj xeeb ntawm qis li 3℃yuav xav tau kev sim ntxiv thiab yuav nyob ntawm qhov kev tsim qauv thiab cov yam ntxwv muaj txiaj ntsig.
Puas siv MBBR cov cab kuj ua rau cov sludge bulking?
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- Sludge bulking feem ntau yog tshwm sim los ntawm cov kab mob filamentous. Raws li kev tshawb fawb txawv teb chaws, MBBR cov neeg nqa khoom tuaj yeem pab txo qis kev pheej hmoo ntawm sludge bulking, vim tias lawv tawg ntev filamentous qauv hauv cov cawv sib xyaw. Hauv qhov sib piv, ib txwm floc- hom sludge, uas me dua li cov neeg nqa khoom, tsis cuam tshuam los ntawm qhov kev sib cuam tshuam ntawm kev siv tshuab.
- Ob qho tib si kev tshawb fawb thoob ntiaj teb thiab kev paub txog kev tsim vaj tsev qhia tau hais tias MBBR cov tshuab tsis muaj kev nyiam siab rau cov sludge bulking, thiab hloov pauv tuaj yeem txhim kho sludge daws cov yam ntxwv.
Xaus:
Hauv cov ntsiab lus, kev sib koom ua ke MBBR cov dej khib nyiab tau siv dav hauv ntau daim ntawv thov engineering vim lawv qhov ua tau zoo, yoog raws, thiab yooj yim ntawm kev saib xyuas. Txawm hais tias muaj teeb meem xws li qis- qhov kub ntawm biofilm tsim, qhov sib piv cov cab kuj, thiab kev laus biofilm tuaj yeem tshwm sim hauv kev xyaum, lawv tuaj yeem hais tau zoo los ntawm kev ua haujlwm tshawb fawb thiab tsim qauv tsim nyog. Saib ua ntej, raws li thev naus laus zis txuas ntxiv mus, cov txheej txheem MBBR yuav tsum ua kom pom kev hloov pauv tau zoo dua thiab ruaj khov hauv kev kho cov dej khib nyiab ntau dua thiab ua tau raws li qhov xav tau ntawm ntau hom kev thov.