Cov khoom siv kho dej phwj MBR yog lwm lub npe rau membrane bioreactor. Nws yog ib qhocov khoom siv kho dej phwj tuaj ua kenrog rau cov thev naus laus zis siab heev. Hauv qee qhov project uas muaj cov dej khib nyiab ntau thiab kev tswj hwm cov pa phem hauv dej, cov bioreactor membrane ua tau zoo tshwj xeeb. Niaj hnub no, Liding Environmental Protection, lub tuam txhab tsim khoom siv kho dej phwj tuaj, yuav piav qhia rau koj txog cov khoom no nrog kev ua haujlwm zoo heev.
Lub hauv paus tseem ceeb ntawmCov khoom siv kho dej phwj MBRyog daim nyias nyias. MBR muab faib ua peb hom: hom sab nraud, hom hauv qab dej thiab hom sib xyaw. Raws li seb puas xav tau oxygen hauv lub reactor, MBR muab faib ua hom aerobic thiab hom anaerobic. Aerobic MBR muaj lub sijhawm pib luv luv thiab cov dej tawm zoo, uas tuaj yeem ua tau raws li tus qauv siv dej rov qab, tab sis cov zis sludge siab thiab kev siv hluav taws xob ntau. Anaerobic MBR muaj kev siv hluav taws xob tsawg, kev tsim sludge tsawg, thiab biogas tsim, tab sis nws siv sijhawm ntev los pib, thiab cov nyhuv tshem tawm cov pa phem tsis zoo li aerobic MBR. Raws li cov ntaub ntawv membrane sib txawv, MBR tuaj yeem faib ua microfiltration membrane MBR, ultrafiltration membrane MBR thiab lwm yam. Cov ntaub ntawv membrane feem ntau siv hauv MBR yog microfiltration membranes thiab ultrafiltration membranes.
Raws li kev sib cuam tshuam ntawm cov modules membrane thiab bioreactors, MBR muab faib ua peb hom: "aeration MBR", "separation MBR" thiab "extraction MBR".
Aerated MBR tseem hu ua Membrane Aerated Bioreactor (MABR). Txoj kev aeration ntawm cov thev naus laus zis no zoo dua li cov porous lossis microporous loj npuas aeration. Lub membrane-permeable roj siv rau cov npuas aeration los muab oxygen, thiab tus nqi siv ntawm oxygen yog siab. Lub biofilm ntawm lub membrane breathable nyob rau hauv kev sib cuag tag nrho nrog cov dej phwj, thiab lub membrane breathable muab oxygen rau cov kab mob me me uas txuas nrog nws, thiab ua kom cov pa phem hauv dej puas tsuaj tau zoo.
Hom kev sib cais MBR tseem hu ua hom kev sib cais khoom-kua MBR. Nws muab cov thev naus laus zis sib cais membrane nrog cov thev naus laus zis kho dej khib nyiab ib txwm muaj. Kev ua haujlwm sib cais khoom-kua. Thiab vim tias cov ntsiab lus ntawm cov sludge ua haujlwm hauv lub tank aeration nce ntxiv, qhov ua tau zoo ntawm cov tshuaj tiv thaiv biochemical tau zoo dua, thiab cov pa phem organic tau raug rhuav tshem ntxiv. Hom kev sib cais MBR feem ntau siv rau hauv cov haujlwm kho dej phwj MBR.
Extractive MBR (EMBR) ua ke cov txheej txheem sib cais membrane nrog rau kev zom zaub mov anaerobic. Cov membrane xaiv tau rho tawm cov tshuaj lom los ntawm cov dej khib nyiab. Cov kab mob anaerobic hloov cov organic matter hauv cov dej khib nyiab mus rau hauv methane, ib qho roj zog, thiab hloov cov as-ham (xws li nitrogen thiab phosphorus) mus rau hauv ntau hom tshuaj, yog li ua kom muaj kev rov qab tau cov peev txheej los ntawm cov dej khib nyiab ntau tshaj plaws.
Lub sijhawm tshaj tawm: Lub Xya Hli-07-2023