SBR (Sequencing Batch Reactor)
Cov txheej txheem SBR yog cov txheej txheem activated sludge ua haujlwm nyob rau hauv ib qho kev sib tshuam aeration hom. Lub hauv paus ntawm SBR thev naus laus zis yog SBR reactor, uas sib xyaw ua haujlwm xws li kev sib npaug, kev teeb tsa thawj zaug, kev puas tsuaj lom neeg, thiab theem nrab nyob rau hauv ib lub tank. Nyob rau hauv tib lub reactor, tus txheej txheem muaj tsib theem pib: inflow, tshuaj tiv thaiv, daws, kua, thiab standby, tsis muaj ib tug sludge rov qab system. Hloov cov txheej txheem anaerobic thiab aerobic tshwm sim nyob rau hauv lub tank, yog li ua tau zoo denitrification thiab phosphorus tshem tawm. Nws yog qhov tshwj xeeb tshaj yog haum rau kev tso tawm tsis tu ncua thiab cov xwm txheej nrog cov kev hloov pauv loj. Lub decanter yog ib qho khoom siv tseem ceeb hauv cov txheej txheem no.
Cov txheej txheem SBR tsis tas yuav tsum muaj lub tank, uas ua rau qis dua sludge ntim qhov ntsuas (SVI), ua kom yooj yim sludge daws thiab txo qhov tshwm sim ntawm sludge bulking. Tshwj xeeb tshaj yog nyob rau hauv xyoo tas los no, nrog rau kev txhim kho ntawm automation theem, kev siv dav siv xws li hluav taws xob li qub, qib ntsuas, tsis siv neeg timers, thiab programmable controllers tau ua rau tag nrho cov txheej txheem SBR ua haujlwm. Thaum ua haujlwm thiab tswj xyuas kom zoo, cov dej ntws zoo tuaj yeem tshaj li cov txheej txheem sludge txuas ntxiv. Piv nrog rau lwm txoj hauv kev, SBR kuj muaj qhov me me hneev taw, tiv taus cov khoom poob siab, thiab tuaj yeem ua rau muaj kuab lom lossis muaj kuab paug siab.
Qhov zoo:
Kev hloov pauv siab: Tsim nyog rau cov nroj tsuag kho me me thiab nruab nrab, thiab qhov kev kho mob tuaj yeem hloov kho raws li xav tau.
Cov hneev taw me me: Vim yog kev ua haujlwm batch, SBR nyob hauv thaj chaw me me.
Kev tshem tawm cov pa phem tau zoo: SBR tuaj yeem tshem tawm cov organic teeb meem, nitrogen, thiab phosphorus pollutants.
Qhov tsis zoo:
Yuav tsum muaj kev tswj xyuas kev ua haujlwm nruj: SBR kev ua haujlwm yuav tsum tau tswj lub sijhawm nruj thiab tswj kev ua haujlwm.
Kev siv hluav taws xob siab: Kev siv hluav taws xob tseem ceeb rau aeration thiab agitation yog xav tau.
rhiab heev rau qhov hloov pauv ntawm cov dej zoo: SBR tuaj yeem nkag siab rau qhov hloov pauv ntawm cov dej zoo, uas tuaj yeem cuam tshuam rau kev kho mob.
MBR (Membrane Bioreactor)
MBR yog ib txoj kev kho dej khib nyiab tshiab thiab muaj txiaj ntsig zoo uas ua ke nrog cov txheej txheem kev ua haujlwm siab ntawm daim nyias nyias nyias nrog cov txheej txheem ua kom cov sludge. Nws siv MBR membrane modules los hloov cov tsoos thib ob cov tso tsheb hlau luam. Cov dej kho tau tso tawm tom qab pom los ntawm daim nyias nyias, thaum lub tshuab ua kom cov sludge khaws cia los ntawm kev sib cais ntawm daim nyias nyias thiab tsis tawm ntawm lub cev, yog li txuas ntxiv lub hnub nyoog sludge thiab nce cov concentration ntawm cov activated sludge. Nws lub ntsiab feature yog cais cov sludge retention time (SRT) los ntawm hydraulic retention time (HRT).
Lub ntsiab tseem ceeb ntawm cov txheej txheem MBR yog cov txheej txheem membrane, uas tau muab faib ua hollow fiber ntau daim nyias nyias, tubular daim nyias nyias, phaj-thiab-thav duab (phaj-daim ntawv) daim nyias nyias, kauv-mob daim nyias nyias, thiab capillary daim nyias nyias. Nws muaj nuj nqi zoo ib yam li qhov thib ob lub tank nyob rau hauv cov txheej txheem activated sludge. Qhov pom tseeb ntawm daim nyias nyias nyias yog qhov siab, feem ntau tuaj yeem cuam tshuam cov khib nyiab xws li 0.01μm txog 0.1μm.
Tau kawg, MBR daim nyias nyias kuj yuav tsum xav txog kev rov qab ntxuav tom qab ua haujlwm ntev. Thaum cov txheej txheem ntxuav lub cev tsis zoo, yuav tsum tau ntxuav cov tshuaj, uas tuaj yeem rov ua kom cov dej ntws zoo. Cov tshuaj reagents muaj xws li acids, alkalis, chelate agents, oxidants, enzymes, thiab surfactants. Txawm hais tias cov txheej txheem tshuaj muaj peev xwm tshem tawm cov pa phem, lawv tuaj yeem qhia cov pa phem tshiab, thiab cov tshuaj ntxuav cov tshuaj muaj qee yam tsis zoo rau cov kab mob, yog li kev ua haujlwm thiab cov txheej txheem yuav tsum tau saib xyuas.
Qhov zoo:
High-quality effluent: MBR's membrane sib cais tshuab ua tiav cov khoom zoo-kua sib cais, ua kom ruaj khov effluent zoo.
Cov hneev taw me me: Vim yog siv cov tshuab sib cais membrane, MBR tuav thaj chaw me me.
Kev siv dav dav: Haum rau cov nroj tsuag kho dej khib nyiab ntawm ntau yam dej zoo thiab nplai.
Qhov tsis zoo:
Kev siv hluav taws xob siab: Kev pom cov khoom siv hauv MBR yuav tsum tau siv zog ntau.
Membrane fouling thiab txij nkawm nyuaj: yuav tsum tau tu thiab hloov cov ntaub ntawv tsis tu ncua, ua rau cov nqi tu ntau dua.
Tus nqi peev siab: Piv nrog rau cov pas dej ua ke lom neeg, MBR muaj cov nqi peev ntau dua.
MBBR Moving Bed Biofilm Reactor
MBBR yog hom tshiab ntawm biofilm reactor, uas yog tsim los ntawm lub txaj ruaj khov reactors, fluidized txaj reactors, thiab cov txaj lim roj ntsha. Nws yog ib qho kev txhim kho biofilm reactor uas kov yeej qhov tsis txaus ntawm lub txaj ruaj khov reactors uas yuav tsum tau rov qab ntxuav txhua lub sijhawm, cov dej hauv txaj reactors xav tau cov kua dej hauv lub cev, thiab kev ua haujlwm nyuaj ntawm submerged biological lim txaj xav tau lim xov xwm tu thiab hloov khoom siv aeration. MBBR khaws cov yam ntxwv ntawm cov txheej txheem biofilm ib txwm muaj xws li tiv thaiv kev poob siab, kev tsim cov sludge tsawg, thiab cov hnub nyoog sludge ntev. Lub hauv paus ntawm MBBR yog nyob rau hauv ib hom xov xwm tshwj xeeb uas muaj qhov ntom ntom ≈ 1, uas zoo ib yam li cov dej ntom ntom, tso cai rau nws ua tiav lub xeev fluidized yam tsis xav tau lub zog loj.
Lub hauv paus ntsiab lus tseem ceeb ntawm MBBR yog ua kom cov dej phwj tsis tu ncua los ntawm cov khoom siv hluav taws xob reactor media carriers, qhov twg biofilms raug tsim los ntawm cov cab kuj, pab txhawb kev loj hlob ntawm cov kab mob thiab cov degradation ntawm cov organic pollutants. Piv nrog rau cov txheej txheem activated sludge, MBBR cov txheej txheem muaj cov hnub nyoog sludge ntev dua, tso cai rau khaws cov kab mob nitrifying ntau dua thiab muaj txiaj ntsig zoo denitrification.
MBBR tuaj yeem nruab nrog cov tso tsheb hlau luam thib ob, lossis nws tuaj yeem ua haujlwm yam tsis muaj lawv. Yog tias ua haujlwm yam tsis muaj cov tso tsheb hlau luam thib ob, nws raug cais raws li MBBR thev naus laus zis uas poob rau hauv qeb ntawm cov txheej txheem biofilm. Yog hais tias ob chav tso tso tsheb hlau luam tau teeb tsa, nws raug xa mus rau raws li kev sib xyaw MBBR system, sib txuas cov yam ntxwv ntawm ob qho tib si biofilm thiab cov txheej txheem activated sludge.
Qhov zoo:
Kev kho mob siab: MBBR muab thaj chaw loj rau kev loj hlob biofilm thiab txuas, yog li txhim kho microbial kev loj hlob thiab txhim kho cov dej phwj tuaj.
Strong adaptability: Haum rau ntau hom thiab nplai ntawm cov nroj tsuag kho dej khib nyiab.
Muaj peev xwm hloov kho kom haum rau qhov kev hloov pauv: MBBR qhia tau hais tias kev hloov pauv tau zoo rau kev thauj khoom hloov pauv, ua rau muaj kev kho mob ruaj khov.
Qhov tsis zoo:
Yuav tsum muaj kev saib xyuas kev ua haujlwm siab: Kev tu cov khoom siv xov xwm tsis tu ncua thiab saib xyuas cov xwm txheej biofilm yog qhov tsim nyog.
Yuav tsum tau kub thiab dej zoo: MBBR tej zaum yuav tsis zoo nyob rau hauv ib puag ncig uas tsis kub los yog dej tsis zoo.
Kev nqis peev siab thiab cov nqi khiav lag luam: Piv nrog rau cov pas dej ua ke lom neeg, MBBR muaj kev nqis peev ntau dua thiab cov nqi ua haujlwm.