Taw qhia
Kev kho cov dej khib nyiab yog qhov tseem ceeb heev rau kev ua kom muaj kev tswj hwm kev ruaj ntseg ntawm cov peev txheej dej. Ntawm cov cuab yeej kho mob ntau yam, Moving Bed Biofilm Reactor (MBBR) thiab aeration tso tsheb hlau luam tau dav siv rau kev kho mob lom. MBBR cov txheej txheem muaj cov txheej txheem siab tshaj plaws ntawm kev lim dej lom neeg, thaum lub tso tsheb hlau luam aeration yog qhov tseem ceeb rau kev tswj xyuas cov mob aerobic uas txhawb kev loj hlob ntawm microbial. Ob lub tshuab tso siab rau kev sib xyaw kom zoo los txhim kho cov tshuaj lom neeg lom neeg, thiab cov khoom sib xyaw ua ke ua lub luag haujlwm tseem ceeb hauv kev ua tiav kev ua haujlwm zoo.
Tsab ntawv xov xwm no tshawb txog seb cov khoom sib xyaw ua haujlwm li cas rau kev ua haujlwm zoo ntawm MBBR cov tshuab thiab cov tso tsheb hlau luam aeration, tshuaj xyuas lawv cov kev cuam tshuam ntawm kev hloov pauv oxygen, kev ua haujlwm ntawm cov kab mob microbial, thiab kev ua haujlwm tag nrho.
Mixers hauv MBBR Systems
MBBR system yog ib hom kev ncua kev loj hlob ntawm kev kho mob lom uas siv cov khoom siv biofilm, uas feem ntau yog cov yas lossis lwm yam khoom siv tsis zoo. Cov neeg nqa khoom no muab thaj chaw loj rau cov kab mob me me kom colonize thiab tsim biofilms. Lub luag haujlwm tseem ceeb ntawm MBBR system yog kom degrade organic pollutants hauv dej khib nyiab los ntawm microbial metabolism.
Hauv MBBR qhov system, kev txav ntawm cov khoom siv biofilm yog qhov tseem ceeb rau kev ua kom thaj chaw thaj chaw sib cuag nrog cov dej khib nyiab thiab ua kom cov khoom noj muaj txiaj ntsig zoo. Cov khoom sib tov yog qhov tseem ceeb hauv kev tswj hwm qhov kev txav no thiab tiv thaiv cov neeg nqa khoom biofilm los ntawm kev teeb tsa. Lub xub ntiag ntawm ib qho kev sib tov zoo pab hauv:
Txhim kho Biofilm Carrier Suspension:
Yog tsis muaj kev sib xyaw kom zoo, cov khoom siv biofilm zoo li nyob rau hauv qab ntawm lub reactor. Qhov no txo qhov kev sib cuag ntawm microbial biofilm thiab dej khib nyiab, txo qhov kev ua tau zoo tag nrho ntawm cov txheej txheem kho. Mixers muab qhov tsim nyog agitation kom cov cab kuj raug ncua thiab xyuas kom meej txawm tias faib cov kab mob thoob plaws hauv lub tank.
Txhim kho Oxygen Hloov:
Kev sib xyaw ua kom zoo txhim kho qhov kev faib tawm ntawm cov pa oxygen hauv lub reactor, kom ntseeg tau tias cov kab mob aerobic ntawm cov khoom siv biofilm tau txais cov pa oxygen uas lawv xav tau los rhuav tshem cov pa phem. Cov pa oxygen hloov pauv (OTR) yog qhov tseem ceeb hauv kev ua haujlwm tag nrho ntawm MBBR system, thiab cov khoom sib xyaw pab tswj cov pa oxygen zoo thoob plaws hauv lub reactor.
Txhawb nqa Homogeneous Nutrient Distribution:
Cov khoom sib xyaw kuj tseem pab faib cov khoom noj sib npaug thoob plaws lub tank, kom ntseeg tau tias cov kab mob ntawm cov kab mob biofilm muaj kev nkag mus rau cov as-ham rau kev loj hlob. Qhov kev faib tawm zoo li no pab tswj cov neeg noj qab haus huv microbial, uas yog qhov tseem ceeb rau kev degradation ntawm cov organic teeb meem.
Mixers hauv Aeration Tanks
Aeration tanks yog dav siv nyob rau hauv cov pa activated sludge (CAS) cov txheej txheem rau kev kho dej khib nyiab. Cov tso tsheb hlau luam no muab cov xwm txheej tsim nyog rau microbial degradation ntawm cov pa phem organic los ntawm kev tswj xyuas cov xwm txheej aerobic. Cov txheej txheem aeration suav nrog kev txhaj tshuaj ntawm huab cua lossis oxygen rau hauv lub tank, uas tom qab ntawd xa mus rau dej los txhawb kev ua haujlwm microbial.
Cov khoom sib tov ua lub luag haujlwm tseem ceeb hauv lub tank aeration los ntawm kev ua kom muaj kev sib xyaw ua ke ntawm huab cua, dej, thiab microbial pejxeem. Lub luag haujlwm tseem ceeb ntawm cov khoom sib xyaw hauv aeration tank yog:
Yooj Yim Hloov Oxygen:
Aeration yog ib qho ntawm lub zog tshaj plaws - cov txheej txheem hnyav hauv kev kho dej khib nyiab. Cov khoom sib tov pab txhim kho cov pa oxygen hloov mus los ntawm kev ua kom cov pa oxygen sib npaug thoob plaws hauv lub tank. Kev sib xyaw kom zoo ua rau thaj chaw sib cuag ntawm cov npuas huab cua thiab cov dej khib nyiab, txhim kho qhov loj ntawm cov pa oxygen mus rau hauv dej. Qhov no yuav pab txhim kho kev ua haujlwm ntawm microbial, vim tias cov kab mob aerobic xav tau cov pa tsis tu ncua.
Tiv thaiv kom tsis txhob muaj Sludge:
Zoo ib yam li MBBR systems, aeration tanks kuj ntsib cov kev sib tw ntawm sludge daws. Yog tias tsis muaj kev sib xyaw txaus, cov activated sludge, uas muaj cov kab mob siab, tuaj yeem nyob hauv qab ntawm lub tank, txo cov kev ua haujlwm ntawm cov txheej txheem kev kho mob lom. Mixers xyuas kom meej tias cov sludge tseem raug tshem tawm thiab cov kab mob tseem nyob hauv kev sib cuag nrog cov dej khib nyiab, txhawb kev kho kom zoo.
Txhim kho Hydraulic Flow:
Kev tsim thiab kev teeb tsa ntawm lub tso tsheb hlau luam aeration feem ntau xav tau cov hydraulic ntws los xyuas kom meej tias cov dej khib nyiab txav tau zoo los ntawm qhov system. Cov khoom sib tov yog siv los txhawb cov qauv ntws sib xws, tiv thaiv qhov chaw tuag lossis luv luv -circuiting, uas tuaj yeem ua rau kev kho tsis zoo thiab kev ua haujlwm qis dua.
Cov txiaj ntsig ntawm kev sib xyaw zoo hauv MBBR thiab Aeration Tanks
Txhim kho kev ua tau zoo:
Los ntawm kev ua kom ntseeg tau tias cov khoom siv biofilm lossis cov activated sludge tseem raug ncua thiab nyob rau hauv kev sib cuag nrog cov dej khib nyiab, cov khoom sib tov pab txhim kho tag nrho cov txiaj ntsig ntawm cov txheej txheem kho. Kev sib cuam tshuam ntau ntxiv ntawm cov kab mob thiab cov pa phem ua rau muaj kev puas tsuaj zoo dua ntawm cov organic teeb meem thiab txo cov tshuaj oxygen xav tau (COD) thiab biochemical oxygen xav tau (BOD) hauv cov effluent.
Kev txuag hluav taws xob:
Kev sib xyaw kom zoo pab txhim kho cov pa oxygen hloov pauv (OTR) thiab txo qhov kev xav tau rau kev siv ntau dhau, uas yog ib qho ntawm lub zog tshaj plaws - siv cov kev kho dej khib nyiab. Los ntawm kev ua kom cov pa oxygen siv tau zoo los ntawm cov kab mob, cov khoom sib tov pab txo qis kev siv hluav taws xob thiab txo cov nqi khiav lag luam.
Kev ua haujlwm ruaj khov:
Kev sib xyaw pab txhim kho cov txheej txheem kev kho mob lom neeg los ntawm kev tswj hwm ib puag ncig homogeneous hauv lub reactor lossis aeration tank. Qhov no ua rau muaj kev kwv yees ntau dua thiab ua tau zoo ib yam, uas yog qhov tseem ceeb rau kev ua kom tau raws li cov qauv kev tso tawm.
Xaus
Mixers yog ib qho tseem ceeb ntawm MBBR systems thiab aeration tanks, ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj txiaj ntsig zoo thiab muaj txiaj ntsig zoo. Hauv MBBR cov tshuab, cov khoom sib tov pab tswj kev ncua ntawm cov khoom siv biofilm, txhim kho cov pa xa mus, thiab faib cov khoom noj sib npaug, thaum nyob hauv cov tso tsheb hlau luam aeration, lawv pab txhawb cov pa xa mus, tiv thaiv sludge daws, thiab txhim kho cov dej ntws. Kev sib xyaw kom zoo tsis yog tsuas yog txhim kho kev kho mob kom zoo tab sis kuj tseem ua rau kev txuag hluav taws xob thiab kev ua haujlwm ruaj khov.
Raws li kev kho cov dej khib nyiab txuas ntxiv mus ntxiv, lub luag haujlwm ntawm cov khoom sib tov yuav tseem ceeb rau kev ua kom zoo dua qub thiab ua tau raws li qhov xav tau loj zuj zus ntxiv rau kev siv thev naus laus zis thiab kev kho kom zoo.