Dab tsi cuam tshuam rau kev kho mob ntawm cov txheej txheem MBBR?

1. Filler yam ntxwv
Filler hom:
Fillers ntawm cov khoom sib txawv muaj kev cuam tshuam rau kev kho mob. Piv txwv li, polyethylene thiab polypropylene fillers muaj tshuaj lom neeg ruaj khov thiab hnav tsis kam, thiab tsim nyog rau kev siv mus ntev; thaum muab cov ntaub ntawv xws li polyurethane tuaj yeem muaj qhov tshwj xeeb ntawm qhov chaw siab dua, uas yog qhov tsim nyog rau kev sib txuas thiab kev loj hlob ntawm cov kab mob, tab sis tus nqi kuj yuav siab.
Cov duab ntawm qhov muab tub lim kuj tseem ceeb heev. Piv txwv li, lub zog ntawm lub xeev thiab microbial txuas ntawm fillers ntawm cov duab sib txawv xws li cylindrical thiab kheej kheej hauv cov dej ntws yuav txawv.
Qhov tshwj xeeb ntawm thaj chaw:
Qhov loj dua qhov chaw tshwj xeeb ntawm qhov muab tub lim, qhov loj dua qhov chaw muaj rau cov kab mob kom txuas thiab loj hlob, kom ntau biomass tuaj yeem haum thiab kho cov nyhuv tuaj yeem txhim kho. Feem ntau, cov fillers nrog thaj chaw tshwj xeeb ntawm ntau dua 300 square metres / cubic meters tuaj yeem muab kev kho mob zoo dua.
Txawm li cas los xij, qhov loj heev ntawm thaj chaw tshwj xeeb kuj tseem tuaj yeem ua rau cov dej ntws tawm ntawm cov khoom ntim, cuam tshuam rau kev ua haujlwm ruaj khov ntawm qhov system.
Porosity:
Fillers nrog cov porosity siab yog qhov tsim nyog rau kev nkag mus ntawm cov dej ntws thiab hloov cov pa oxygen, muab qhov chaw loj hlob zoo rau cov kab mob. Lub porosity feem ntau yog ntau tshaj 90%.
Nyob rau tib lub sijhawm, porosity tseem yuav cuam tshuam rau biofilm kev loj hlob tus nqi ntawm cov muab tub lim thiab qhov rov ua dua tshiab ntawm biofilm.

2. Hydraulic tej yam kev mob
Tus nqi dej ntws:
Qhov tsim nyog cov dej ntws tuaj yeem ua kom ntseeg tau tias cov khoom ntim tau raug tshem tawm tag nrho thiab sib xyaw hauv cov tshuaj tiv thaiv tank, txhawb kev sib cuag ntawm cov kab mob thiab cov dej phwj tuaj. Yog tias cov dej ntws qis dhau lawm, qhov muab tub lim tuaj yeem kho, ua rau txo qis hauv biomass hauv zos; Yog hais tias cov dej ntws ntws siab dhau lawm, nws yuav ua rau muaj kev cuam tshuam ntawm biofilm thiab ua rau biofilm poob sai heev.
Feem ntau hais lus, tus nqi dej ntws zoo dua ntawm {{0}}.2 thiab 0.5 m / s.
Hydraulic tuav lub sijhawm:
Hydraulic retention time (HRT) ncaj qha cuam tshuam rau lub sijhawm kho cov dej phwj hauv cov tshuaj tiv thaiv tank. HRT ntev dua tuaj yeem muab cov kab mob kom txaus rau lub sijhawm kom txo cov pa phem, tab sis nws yuav txo qis kev kho mob; HRT luv dua tuaj yeem ua rau muaj kev kho mob tsis txaus.
Raws li qhov sib txawv ntawm cov dej zoo thiab kev kho mob, HRT feem ntau yog hloov kho ntawm 4 thiab 12 teev.
Mixing degree:
Kev sib xyaw ua ke zoo tuaj yeem ua kom ntseeg tau tias cov pa phem hauv cov dej phwj tuaj sib npaug thiab ua rau muaj kev sib cuag ntawm cov kab mob thiab cov pa phem. Cov nyhuv sib xyaw tuaj yeem txhim kho los ntawm agitators, aeration, thiab lwm yam.
Txawm li cas los xij, kev sib xyaw ntau dhau tuaj yeem rhuav tshem cov qauv ntawm biofilm thiab cuam tshuam rau kev kho mob.

3. Cov yam ntxwv lom neeg
Microbial hom thiab kev ua haujlwm:
Ntau hom kab mob muaj peev xwm degradation sib txawv rau cov pa phem sib txawv. Piv txwv li, cov kab mob nitrifying thiab cov kab mob denitrifying ua lub luag haujlwm tseem ceeb hauv kev tshem tawm cov pa phem nitrogen, thaum cov kab mob polyphosphate pab tshem tawm phosphorus.
Kev tswj hwm kev ua haujlwm siab ntawm cov kab mob microorganisms yog tus yuam sij rau kev txhim kho kev kho mob. Kev loj hlob ntawm microbial thiab metabolism tuaj yeem txhawb nqa los ntawm kev tswj hwm ib puag ncig xws li kub, pH tus nqi, thiab cov pa oxygen yaj.
Biofilm thickness:
Thaum lub biofilm tuab yog nruab nrab, nws tuaj yeem ua kom muaj biomass txaus rau cov pa phem degradation thiab hloov cov pa oxygen thiab cov as-ham. Yog tias biofilm tuab dhau lawm, nws tuaj yeem ua rau hypoxia sab hauv thiab cuam tshuam rau kev ua haujlwm ntawm microbial; Yog tias biofilm nyias dhau lawm, biomass tsis txaus thiab cov nyhuv kho yuav raug txo.
Feem ntau hais lus, biofilm thickness yog qhov tsim nyog ntawm {{0}}.2 thiab 0.5 hli.
Biofilm txuas ntxiv tus nqi:
Ib qho kev hloov pauv biofilm uas tsim nyog tuaj yeem tshem tawm cov biofilms aging thiab tswj cov haujlwm ntawm biofilms. Kev rov ua dua tshiab ntawm biofilms tuaj yeem txhawb nqa los ntawm dej ntws tawm, aeration, thiab lwm yam.
Txawm li cas los xij, kev hloov pauv sai heev tuaj yeem ua rau biomass ntau dhau, cuam tshuam rau kev kho mob.

4. Cov xwm txheej ua haujlwm
Kub:
Qhov kub thiab txias muaj qhov cuam tshuam tseem ceeb rau kev loj hlob thiab metabolism ntawm cov kab mob. Cov kab mob feem ntau muaj kev ua haujlwm siab ntawm 20-35 degree . Nyob rau hauv qhov kub thiab txias, kev ua haujlwm ntawm cov kab mob yuav txo qis thiab kev kho mob yuav txo qis; Nyob rau hauv qhov kub thiab txias, cov kab mob tej zaum yuav inhibited los yog txawm tuag.
Rau cov cheeb tsam uas tsis tshua muaj kub nyob rau lub caij ntuj no, kev ntsuas rwb thaiv tsev tuaj yeem raug coj los yog cov kab mob microbial uas hloov mus rau qhov kub thiab txias ib puag ncig tuaj yeem xaiv.
tus nqi pH:
Tus nqi pH tsim nyog feem ntau yog 6.5-8.5. Deviating los ntawm qhov ntau yam no, kev ua haujlwm ntawm cov kab mob microorganisms yuav cuam tshuam, yog li txo qhov kev kho mob.
Tus nqi pH ntawm cov dej phwj tuaj yeem hloov kho los ntawm kev ntxiv cov kua qaub-base regulators.
Dissolved oxygen:
Dissolved oxygen yog qhov tseem ceeb rau aerobic metabolism ntawm cov kab mob. Rau cov txheej txheem kev kho mob aerobic, feem ntau yuav tsum tau khaws cia cov pa oxygen concentration ntawm 2-4 mg/L.
Cov pa oxygen txaus txaus tuaj yeem muab los ntawm cov khoom siv aeration. Nyob rau tib lub sijhawm, kev saib xyuas yuav tsum tau saib xyuas kom tsis txhob muaj aeration ntau dhau kom tsis txhob muaj kev puas tsuaj rau biofilm.

Yog tias koj xav paub txog yam uas cuam tshuam rau kev kho mob ntawm cov txheej txheem MBBR, koj tuaj yeem tiv tauj BioCell Environmental Technology, peb yuav ua qhov zoo tshaj plaws los pab koj!

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