Txhawm rau xaiv qhov tseeb txav bio txaj media rau koj daim ntawv thov dej khib nyiab, koj yuav xav txog ob peb yam sib txawv:
Media Surface Area
Qhov chaw tsim nyog yog tsim nyog los pab txhawb kev loj hlob ntawm cov kab mob. Media deg cheeb tsam qee zaum cuam tshuam nrog cov nqi biodegradation, tab sis lwm yam tuaj yeem cuam tshuam rau biodegradation ib yam nkaus, yog li kev sib raug zoo tsis yog ib qho zoo meej.
Feem ntau, lub chaw kho dej khib nyiab yuav tsum ua kom thaj chaw tshaj tawm xov xwm tshaj plaws thaum tseem ua kom cov neeg nqa xov xwm ua tau raws li qhov chaw xav tau ntawm lawv cov yam ntxwv. MBBR cov neeg nqa khoom hauv cov duab ntawm lub log hais lus, piv txwv li, muab thaj chaw zoo kawg nkaus rau lawv qhov loj los pab cov nroj tsuag kom tau raws li qhov xav tau ntawm kev zom zaub mov.
Kev ua tau zoo thiab xav tau Biodegradation tus nqi
Kev ua tau zoo tshaj plaws thiab cov nqi biodegradation yog qhov tseem ceeb rau kev pab cov nroj tsuag txav cov dej khib nyiab los ntawm kev kho mob thib ob sai thiab ua tau zoo. Kev ua tau zoo thiab biodegradation tus nqi feem ntau nce nrog cov xov xwm saum npoo av. Lawv kuj nyob ntawm cov yam ntxwv xws li cov yam ntxwv zoo thiab cov dej ntws tawm, kev hloov pauv hauv cov dej khib nyiab ntau, lub tank qhov kub thiab txias, thiab cov roj ntsha metabolism hauv lub tank cov kab mob.
Feem ntau, txhawm rau txhim kho kev ua tau zoo thiab biodegradation tus nqi, cov nroj tsuag yuav tsum nrhiav MBBR cov neeg nqa khoom ntawm cov duab thiab cov khoom zoo los muab cov khoom siv pov tseg zoo, ua haujlwm zoo.
Tsim thiab Zoo
Raws li peb tau tham saum toj no, tus qauv tsim thiab cov duab ntawm MBBR bio media carriers pab txiav txim siab cov khoom siv pov tseg thiab kev ua tau zoo. Cov neeg nqa khoom xov xwm nrog cov duab zoo nkauj, txiav tawm zoo li yuav muaj ntau qhov chaw ntawm qhov hnyav tshaj tawm los txhim kho cov kab mob loj hlob thiab txhawb nqa biosolid tawg.
MBBR media carriers 'tus tsim yuav tsum muab lawv qhov ntom ntom ntom ntom ntawm cov dej khib nyiab. Txoj cai ceev txhawb txawm tias dispersal thoob plaws hauv lub tank thiab xyuas kom meej cov khib nyiab zom. Cov ntaub ntawv sib txawv muaj qhov sib txawv - qhov kev lag luam rov ua dua tshiab, piv txwv li, tej zaum yuav muaj qhov sib txawv ntawm qhov ceev ntawm cov khoom thauj, hos polyethylene tuaj yeem muab ntau qhov sib xws.
Hnav Resistance
Cov yam ntxwv ntawm kev hnav-tiv taus ntawm MBBR xov xwm cov neeg nqa khoom txiav txim siab seb lawv tuav li cas raws li qhov xav tau ntawm kev kho dej khib nyiab. Cov xov xwm tiv thaiv ntau dua kav ntev dua thiab xav tau kev hloov pauv tsawg dua lub sijhawm. Qee tus MBBR cov khoom siv xov xwm, xws li daim txhuam cev, muaj qhov txwv tsis pub muaj kev puas tsuaj, yog li lawv hnav yooj yim dua. Chip-type carriers nyiam muab kev tiv thaiv zoo dua thiab lub neej ntev dua. Tube-shaped versions tuaj yeem raug kev txom nyem vim tias cov hlab hauv cov hlab ntsha tuaj yeem khaws cov biomatter, uas tom qab ntawd tuag thiab inhibits cov khoom pov tseg.
Kev tu
MBBR media systems yuav tsum tau saib xyuas me ntsis. Qee cov ntaub ntawv zoo li polyethylene siv sijhawm ntev dua li lwm tus thiab txo qis kev xav tau ntawm kev saib xyuas, yog li cov thawj coj hauv tsev yuav xav saib cov ntaub ntawv sib txawv thiab txiav txim siab seb lub neej ntev li cas ntawm cov nroj tsuag xav tau rau nws cov xov xwm.
MBBR MEDIA CALCULATION
MBBR media ntim suav li cas? Txhawm rau xam tus naj npawb ntawm cov neeg nqa khoom xov xwm ib qho chaw yuav xav tau rau lub tank dej khib nyiab, nws yuav tsum xub txiav txim siab txog cov organic load ntawm nws cov dej khib nyiab. Cov organic load yuav ntau dua los yog tsawg dua qhov sib npaug ntawm cov khoom ntawm tus nqi ntws thiab qhov sib txawv ntawm qhov muaj zog thiab effluent concentration.
Organic load=flow rate x (influent concentration – effluent concentration)
Thaum lub tsev kho mob tau txiav txim siab nws tus nqi ntws, nws tuaj yeem suav cov khoom siv xov xwm tsim nyog. Feem ntau, tus nqi thauj khoom sib npaug sib npaug rau cov dej khib nyiab cov organic sib faib los ntawm kev tshaj tawm cov kev tshem tawm.
Carrier npaum li cas=organic load / tshem tawm efficiency
Hauv qab no, peb siv cov khoom MBBR19 ua piv txwv los xam qhov xav tau ntawm kev sau rau biofilm reactor.
Khoom Parameter rau MBBR19:
Loj: Φ25 * 12mm
Qhov Number: 19
Khoom siv: 100% Dawb Virgin HDPE
Qhov ceev: 0 96-0.98g/cm3
Surface Area: >650m2/m3
BOD5 load/SA: 2-16g BOD5/m2.dy
Porosity: >85%
Dosing ratio: 15-65%
Membrane-Forming Time: 3-15hnub
Nitrification Efficiency: 400-1200gNH4 N/M3.d
BOD5 Efficiency: 2000-10000g BOD5/M3.d
COD5 Efficiency: 2000-15000 gCOD5/M3.d
Qhov ntsuas kub: 5-60 degree
Life-Span: >15 xyoo
Kev kho dej khib nyiab Parameters:
|
Tus nqi Parameter |
Tus nqi |
|
Inlet BOD Concentration |
100 mg/l |
|
Qhov hluav taws xob BOD Concentration |
20 mg/l |
|
Tus nqi ntws |
1000 m3/d |
|
BOD Load |
80 KG BOD/d |
Kev suav siv Biofilm Surface Area:
Given Surface Area: >650m2/m3,650 m2 / m3
BOD5 load/SA: 2-16g BOD5/m2.d,noj li 9kgBOD5/M3.d
Txiav txim siab tag nrho biofilm nto qhov yuav tsum tau rau kev tshem tawm BOD:
Tag nrho cheeb tsam saum npoo yuav tsum tau rau biofilm=80000g BOD5/hnub / 9g BOD5/m2.d=8888.89m2
Xam qhov ntim ntawm filling yuav tsum:
Ntim ntim yuav tsum tau=8888.88 m² / 650 m² / m³=13.67m³
Kev suav nrog BOD5 Efficiency:
Siv biofilm kho efficiency: 2000-10000g BOD5/M3.d,noj li 6kgBOD5/M3.d
Tag nrho cheeb tsam saum npoo yuav tsum tau rau biofilm=80 kg BOD5/hnub / 6 kg BOD5/M3.d=13.33m3
Cov saum toj no yog kev suav ntxhib rau MBBR sau, muab rau siv nkaus xwb. Tus nqi ntawm cov filling yuav tsum tau txiav txim los ntawm engineers los yog cov chaw tswj xyuas kev txiav txim siab qhov kev tshem tawm ntawm cov khoom sib txawv thiab muab cov txiaj ntsig no rau hauv cov qauv los txiav txim siab qhov tsim nyog ntim cov khoom ntim.
Yuav ua li cas xam qhov xav tau ntawm MBBR media hauv tank?
Hloov cov ntaub ntawv xov xwm uas yuav tsum tau muaj rau qhov hnyav (yeem) Yog tias tsim nyog, hloov qhov xav tau ntawm cov xov xwm ntim rau qhov hnyav los ntawm kev muab faib los ntawm qhov ceev ntawm MBBR media. Hauv qab no yog qhov ntsuas qhov hnyav ntawm Aquasust's MBBR media.
Yuav Tsum Muaj Media Nyhav=Yuav Tsum Muaj Media Volume * Ceev
Xav txog lwm yam Muab rau hauv tus account lwm yam tseem ceeb uas yuav cuam tshuam rau qhov hnyav ntawm cov xov xwm, xws li lub tank tsis zoo, lub sij hawm tuav hydraulic, cov qauv tsim tshwj xeeb, lossis cov yam ntxwv ntawm kev nyab xeeb. Hauv cov xwm txheej no, Aquasust muaj kev paub dhau los hauv MBBR biofilm reactor schemes thiab yog koj qhov kev xaiv zoo tshaj plaws rau kev kho dej engineering.
MBBR Sau tus nqi suav
Tus nqi filling ntawm MBBR (Txiv txaj Biofilm Reactor) yog txiav txim los ntawm qhov ntim ntawm biofilm reactor thiab qhov ntim ntawm MBBR siv. Tus nqi sau yog xam raws li qhov ntim ntawm MBBR media faib los ntawm qhov ntim ntawm biofilm reactor. Tus nqi sau tuaj yeem cuam tshuam cov kua dej ntawm MBBR tank. Yog tias tus nqi sau siab dhau lawm, kev faib tawm tsis sib xws tuaj yeem tshwm sim nyob rau hauv ib txwm muaj aeration lossis agitation siv, ua rau cov xov xwm tsub zuj zuj thiab txhaws.
Rau feem ntau cov haujlwm kho dej khib nyiab, qhov ntim ntawm MBBR yog nyob nruab nrab ntawm 30-35%. Nyob rau hauv ib txwm aeration thiab agitation siv, lub xeev fluidization thiab kev kho mob ntawm MBBR biofilm reactors yog pom nyob rau hauv no ntau yam.
Hauv ib lub me me MBBR denitrification reactor, siv cov nqa khoom nrog 20%, 30%, 40%, thiab 50% polyethylene (PE) cov ntsiab lus raws li, degradation ntawm cov tshuaj oxygen xav tau (COD) thiab nitrogen hauv cov dej khib nyiab yog kawm nyob rau hauv hydraulic retention time (HRT) ntawm 12 teev. Kev tshem tawm nitrate rau cov neeg nqa khoom nrog 20%, 30%, 40%, thiab 50% PE yog 94.2 ± 3.8%, 87.6 ± 7.4%, 89.7 ± 11.6%, thiab 94.6 ± 4.0%, feem.
Thaum kho cov dej khib nyiab nrog cov concentration siab, yuav tsum muaj qhov ntim ntau dua. Piv txwv li, hauv kev kho cov dej khib nyiab los ntawm dyeing thiab ntawv mills, qhov ntim ntawm MBBR feem ntau tsis tsawg dua 45%. Qhov siab tshaj qhov tseeb sau tus nqi tam sim no yog 67%. Hauv cov cheeb tsam aerobic, qhov siab tshaj plaws ua tiav tau tiav yog 60%, thiab hauv thaj chaw anoxic, nws yog 50%.
Thov nco ntsoov tias cov kev suav ua tiav yuav txawv raws li cov kev xav tau tshwj xeeb thiab tsim kev txiav txim siab ntawm txhua qhov aerobic tank system. Nws raug nquahu kom sab laj nrog Aquasust cov kws kho dej khib nyiab lossis cov kws tshaj lij los xyuas kom meej cov kev suav thiab kev xaiv xov xwm zoo rau koj daim ntawv thov tshwj xeeb.