Rau cov neeg tsim khoom lag luam npias, tshwj xeeb npias zoo yog qhov tseem ceeb ntawm kev ua haujlwm ruaj khov thiab zoo ib puag ncig. Tau ntsib nrog siab -kev sib xyaw ua ke, yooj yim hloov pauv cov dej khib nyiab, xaiv qhov ua tau zoo, ruaj khov, thiab tus nqi- siv thev naus laus zis zoo yog qhov tseem ceeb heev. Tsab ntawv xov xwm no piav qhia txog yuav ua li cas Moving Bed Biofilm Reactor (MBBR) tau dhau los ua cov kev daws teeb meem zoo tshaj plaws rau ntau lub tuam txhab breweries thoob ntiaj teb, pab cov lag luam ua tiav ob lub hom phiaj ntawm kev ua tau raws li ib puag ncig cov qauv thiab txo cov nqi thaum nce kev ua tau zoo.
Cov txheej txheem npias brewing - los ntawm mashing, fermentation mus rau sau thiab tu (CIP) - generates ib tug loj npaum li cas ntawm cov organic wastewater nplua nuj nyob rau hauv qab zib, starches, cawv, thiab poov xab. Txawm hais tias cov dej khib nyiab no muaj biodegradability zoo, nws cov yam ntxwv xws li siab COD / BOD concentration, kev hloov pauv ntawm cov dej zoo thiab ntau, thiab cov as-ham tsis sib npaug ua rau muaj teeb meem loj rau cov txheej txheem kev kho dej khib nyiab, feem ntau ua rau muaj teeb meem xws li kev kho tsis ruaj khov, sludge bulking, thiab cov nqi ua haujlwm siab.
Vim li cas MBBR yog qhov zoo tshaj plaws Match rau Brewery Wastewater?
MBBR yog ib qho kev ruaj khov - cov txheej txheem loj hlob raws li txoj hauv kev biofilm, nrog rau nws cov tub ntxhais yog qhov sib ntxiv ntawm ntau qhov kev tshem tawm thiab ntws inert biological fillers rau hauv lub reactor.
Txoj Cai Ua Haujlwm: These fillers have an enormous specific surface area (typically >800 m² / m³), muab cov cab kuj rau kev sib txuas thiab kev loj hlob ntawm cov kab mob. Nyob rau hauv qhov kev txiav txim ntawm aeration (aerobic) los yog nplawm (anoxic / anaerobic), cov fillers txav mus rau hauv lub reactor, tsis tu ncua los mus rau hauv kev sib cuag nrog dej khib nyiab, huab cua, thiab kab mob, yog li ntawd degrading cov pa phem.
Hauv -Kev tsom xam qhov tob ntawm Core Advantages:
Extremely High Biomass Density: The surface and internal pores of the fillers can attach a large amount of biofilm, enabling the biomass concentration in the reactor to reach 30000-40000 mg/L, which is about 10 times that of the traditional activated sludge process (2000-4000 mg/L). Qhov no txhais tau ncaj qha mus rau qhov hnyav hnyav hnyav, txhais tau hais tias kev kho cov dej khib nyiab ntawm tib lub ntim thiab zoo, MBBR yuav tsum muaj lub tank me me, txo qhov chaw hauv pem teb.
Inherent Shock Load Resistance Mechanism:
Kev Tiv Thaiv Lub Cev: Cov kab mob loj hlob hauv biofilm, thiab txheej txheej txheej ntawm zaj duab xis tsim ib qho kev tiv thaiv lub cev rau cov kab mob sab hauv, uas tuaj yeem cuam tshuam qhov cuam tshuam ntawm cov dej tsis zoo (xws li kev hloov pauv sai sai hauv pH thiab kub los ntawm CIP cov dej khib nyiab) thiab cov tshuaj lom.
Kev ruaj ntseg ntawm pej xeem:Lub biofilm tuaj yeem tsim ntau yam microenvironments los ntawm aerobic, anoxic rau anaerobic, ua kom muaj ntau haiv neeg ntawm microbial. Thaum lub sij hawm siab -load shocks, facultative kab mob thiab anaerobic kab mob nyob rau hauv cov zaj duab xis tseem tuaj yeem ua haujlwm, thiab lub kaw lus tsis tuaj yeem ua rau tawg. Tom qab kev poob siab, lub kaw lus rov qab sai dua li cov txheej txheem sludge.
Qhov Tseem Ceeb Sludge Reduction Effect:
Ntev Sludge Retention Time (SRT):Lub hnub nyoog microbial sludge nyob rau hauv biofilm yog ntev heev, thiab cov kab mob nyob rau hauv lub endogenous respiration theem, nyob rau hauv nws tus kheej - oxidation thiab decomposition. Qhov no txhais tau hais tias ntau cov organic teeb meem yog tag nrho oxidized rau hauv CO₂ thiab H₂O es tsis txhob raug synthesized rau hauv cov hlwb tshiab (sludge). Qhov seem sludge tawm los ntawm MBBR tuaj yeem yog 20% -40% qis dua li ntawm cov txheej txheem activated sludge, ncaj qha txo cov nqi kho sludge los ntawm qhov chaw.
Kev ua haujlwm yooj yim thiab ruaj khov:
Tsis muaj Sludge Recirculation:Tsis tas yuav muaj cov txheej txheem sludge recirculation (RAS), uas ua rau cov txheej txheem yooj yim thiab txo cov khoom siv peev thiab cov ntsiab lus tsis ua haujlwm.
Tsis muaj Sludge Bulking:Cov txheej txheem biofilm hauv paus daws qhov teeb meem ntawm qhov tsis zoo ntawm cov sludge settleability tshwm sim los ntawm kev tsim tawm ntau dhau ntawm cov kab mob filamentous, kom ntseeg tau tias cov khoom sib cais ntawm cov kua dej ntawm cov sedimentation tank thiab cov effluent zoo.
Lub peev xwm hloov tau Nitrogen tshem tawm: Los ntawm kev teeb tsa anoxic thiab aerobic zones, lossis siv thaj chaw anoxic hauv biofilm hauv ib lub reactor, MBBR tuaj yeem ua tiav ib txhij nitrification thiab denitrification (SND), zoo tshem tawm nitrogen thaum tshem BOD kom tau raws li cov qauv tso tawm nruj dua.
Kev sib xyaw ua ke zoo tshaj plaws:Rau cov breweries loj, cov txheej txheem "UASB (anaerobic) + MBBR (aerobic)" yog kev sib xyaw ua ke. UASB thawj zaug tshem tawm 80% -90% ntawm cov organic teeb meem thiab generates biogas rau lub zog rov qab; MBBR tom qab ntawd ua cov kev kho mob siab heev kom ntseeg tau tias cov dej ntws tawm ruaj khov mus txog tus qauv. Qhov kev sib xyaw ua ke no ua tiav lub hom phiaj kawg ntawm lub zog rov qab + kev kho mob siab heev + txo cov nqi khiav lag luam.
Case Study & ROI
Case:Ib lub tuam txhab loj loj nrog cov zis txhua xyoo ntawm 1 lab kiloliters
Cov teeb meem qub:Siv cov txheej txheem activated sludge, nquag shocks tshwm sim thaum lub sij hawm CIP tu, ua rau substandard effluent; ntau cov sludge ua rau cov nqi pov tseg siab; muaj peev xwm kho tsis txaus thaum lub caij ntuj sov nthuav dav.
Reconstruction Plan:Ntxiv MBBR- tshwj xeeb tshem tawm cov khoom ntim rau hauv lub tank aerobic qub, txhim kho lub tshuab aeration, thiab hloov mus rau MBBR txheej txheem.
Cov txiaj ntsig:
Muaj peev xwm kho tau:Yog tsis ntxiv cov ntim tshiab, qhov kev kho mob muaj peev xwm nce 50%, ua tau raws li qhov xav tau ntawm kev nthuav dav ntau lawm.
Stable effluent mus txog tus qauv:COD nyob ruaj khov qis dua 80 mg / L, ua tiav nrog txhua qhov kev hloov pauv ntau lawm.
Cov txiaj ntsig nyiaj txiag:Kev txuag nyiaj txhua xyoo hauv cov nqi pov tseg sludge yog kwv yees li 1.2 lab RMB; qhov kev tsim kho tshiab tau rov qab los hauv 2 xyoos los ntawm kev txuag kev ua haujlwm thiab cov nqi sludge.
Xaus
MBBR tsis yog "ib qho- loj- haum- tag nrho" thev naus laus zis, tab sis nws cov yam ntxwv kev ua tau zoo ua tiav cov ntsiab lus mob ntawm cov dej khib nyiab brewery - siab siv thiab siab volatility. Los ntawm cov tub ntxhais ntawm biofilm, nws muab kev poob siab ruaj khov, siab -load compactness, qis- sludge kev lag luam, thiab kev yooj yim hauv kev ua haujlwm thiab kev tswj xyuas.
Rau kev txiav txim siab brewery- cov neeg tsim khoom, xaiv MBBR txhais tau tias:
Kev lees paub ntawm kev ua raws li ib puag ncig: Ua kom muaj kev tso tawm ruaj khov mus txog tus qauv thiab zam kev pheej hmoo ib puag ncig.
Kev txhim kho cov txiaj ntsig kev lag luam: Txo qhov chaw hauv pem teb, pov tseg cov sludge, thiab ntev - cov nqi khiav lag luam.
Yooj yim rau kev txhim kho yav tom ntej: Muab qhov yooj yim thiab qis - tus nqi hloov kho txoj hauv kev rau kev nthuav dav ntau lawm.
Yog li ntawd, txawm hais tias rau tej yaam num tshiab los yog kho dua tshiab ntawm cov chaw uas twb muaj lawm, MBBR yog undoubtedly ib qhov zoo tshaj plaws thiab pov thawj kev xaiv rau brewery dej khib nyiab.