Dab tsi yog qhov txawv ntawm MBR thiab MBBR txheej txheem

Membrane bioreactor (MBR) yog ib hom tshiab ntawm kev kho dej siv tshuab ua ke nrog ib chav sib cais membrane nrog chav kho mob lom. Nws hloov cov sedimentation tank theem nrab (los yog decanter) nrog lub membrane module thiab tswj cov activated sludge hauv bioreactor. Concentration txo cov dej phwj tuaj kho qhov chaw hneev taw thiab txo cov sludge ntim los ntawm kev ua kom cov sludge loads tsawg. Nws belongs rau activated sludge method ntxiv rau membrane sib cais.

Carrier fluid bed movebed biofilm reactor (MBBR), nws txoj hauv kev yog kom cov biomass thiab cov kab mob lom nyob rau hauv reactor los ntawm kev ntxiv ib tug npaum li cas ntawm tshem tawm cov cab rau lub reactor, yog li txhim kho cov kev ua hauj lwm ntawm lub reactor. Txij li qhov ceev ntawm cov muab tub lim yog ze rau ntawm cov dej, nws yog tov tag nrho nrog dej thaum lub sij hawm aeration. Tsis tas li ntawd, txhua tus cab kuj muaj cov kab mob sib txawv sab hauv thiab sab nraud, thiab qee cov kab mob anaerobic lossis cov kab mob facultative loj hlob sab hauv. Ib puag ncig rau kev loj hlob microbial yog Gas, kua, khoom peb-theem. Kev sib tsoo thiab shearing ntawm cov cab kuj nyob rau hauv dej ua rau cov pa npuas me me thiab ua rau kom siv cov pa oxygen. Sab nraud yog qhov zoo rau cov kab mob, yog li txhua tus neeg nqa khoom yog micro-reactor, kom cov tshuaj nitrification thiab cov tshuaj denitrification muaj nyob rau tib lub sijhawm, yog li txhim kho kev tuav.

Lub hauv paus ntawm MBBR yog ua kom cov muab tub lim. Qhov tshwj xeeb tsim muab tub lim floats nrog cov dej ntws hauv cov tshuaj tiv thaiv lub tank nyob rau hauv kev cuam tshuam ntawm blast aeration, tsav cov txuas thiab loj hlob cov nroj tsuag kom muaj kev sib cuag nrog cov pa phem thiab oxygen hauv lub cev dej. Diffusion nkag mus rau biofilm thiab degraded los ntawm microorganisms. Cov kab mob uas txuas nrog rau kev loj hlob tuaj yeem ncav cuag biomass siab, yog li cov khoom siv roj ntsha hauv cov tshuaj tiv thaiv tank yog ob peb zaug ntawm cov txheej txheem ncua kev loj hlob activated sludge, thiab cov kev ua haujlwm degradation kuj ntau ntxiv. Nws belongs rau txoj kev biofilm.

Kev sib piv ntawm kev ua haujlwm zoo
Los ntawm kev tshem tawm cov organic teeb meem:
Ob txheej txheem muaj ntau dua tshem tawm cov nqi rau COD, BOD thiab ammonia nitrogen. Cov txheej txheem MBR tso siab rau nws cov sludge load ntau dua, thiab cov txheej txheem MBBR tso siab rau biofilm ntawm nws cov muab tub lim.

TN, TP tshem tawm tus nqi:
Cov txheej txheem MBBR muaj txiaj ntsig zoo dua ntawm kev tshem tawm TN, thaum TP tshem tawm yuav tsum tau vam khom tshuaj phosphorus tshem tawm. Cov txheej txheem MBR yuav tsum vam khom rau pem hauv ntej -txoj kev lom neeg los tshem TN. Kev tshem tawm ntawm TP kuj yuav tsum tau tso siab rau pem hauv ntej- xaus kev tshem tawm cov tshuaj phosphorus.

Kev tshem tawm ntawm SS:
MBBR tsis muaj qhov cuam tshuam rau SS tshem tawm, thiab yuav tsum tau cia siab rau sab nraub qaum -kawg ultrafiltration membrane txheej txheem kom tshem tawm SS; MBR membrane tuaj yeem tshem tawm SS zoo.

Kev sib piv ntawm cov nqi kho mob
Cov muab tub lim hauv cov txheej txheem MBBR tuaj yeem muab ntxiv rau ib zaug, thiab nws tsuas yog tsim nyog los ntxiv dag zog rau kev tswj hwm biofilm ntawm cov muab tub lim hauv kev ua haujlwm tom ntej. Kev nqis peev hauv lub sijhawm tsim kho yog qhov loj, thiab kev ua haujlwm thiab kev saib xyuas yog yooj yim.
MBR txheej txheem: Lub neej kev pab cuam ntawm lub tsev membrane feem ntau yog 4-5 xyoos, thiab lub voj voog hloov luv luv. Thaum lub sijhawm ua haujlwm txhua hnub thiab kev tswj hwm, nws yog ib qho tsim nyog yuav tsum tau ua cov haujlwm tu vaj tse xws li kev tu tshuaj lom neeg thiab kev ua haujlwm tawm ntawm lub tshuab membrane, uas nyuaj rau kev khiav lag luam thiab tswj. Thiab tus nqi yog siab. Tus nqi nruab nrab ntawm kev saib xyuas thiab hloov cov chav tsev membrane yog ntau tshaj ib lab ib xyoos.

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