Kev kho dej khib nyiab MBBR yog dab tsi thiab nws ua haujlwm npaum li cas?

MBBR yog lub hauv paus ntsiab lus ntawm kev siv cov txheej txheem biofilm. Los ntawm kev ntxiv qee qhov kev tshem tawm cov cab mus rau lub reactor, biomass thiab tsiaj txhu hauv reactor tau nce, yog li txhim kho kev kho mob ntawm lub reactor. Txij li qhov ceev ntawm cov muab tub lim yog ze rau ntawm cov dej, nws yog tov nrog dej thaum lub sij hawm aeration, thiab qhov chaw uas cov kab mob loj hlob yog roj, kua, thiab khoom.

 

Kab lus no yuav ua tib zoo tshuaj xyuas cov txheej txheem MBBR, piav qhia nws ua haujlwm li cas, nws piv rau lwm cov tswv yim li cas.

 

 

1.Txoj cai ntawm MBBR txheej txheem

 

The MBBR process principle is to increase the biomass and biological species in the reactor by adding a certain amount of suspended carriers to the reactor, thereby improving the processing efficiency of the reactor. Txij li qhov ceev ntawm cov muab tub lim yog ze rau ntawm cov dej, nws yog tag nrho tov nrog dej thaum lub sij hawm aeration, thiab ib puag ncig rau microbial kev loj hlob yog roj, kua thiab khoom peb theem. Kev sib tsoo thiab shearing nyhuv ntawm cov cab kuj nyob rau hauv cov dej ua rau cov pa npuas me me thiab ua rau kom tus nqi ntawm cov pa oxygen. Tsis tas li ntawd, txhua tus cab kuj muaj cov kab mob sib txawv sab hauv thiab sab nraud, nrog qee cov kab mob anaerobes lossis cov kab mob facultative loj hlob sab hauv, thiab cov kab mob loj hlob zoo sab nraud, kom txhua tus cab kuj yog micro-reactor, kom nitrification thiab denitrification muaj nyob rau tib lub sijhawm. , Li no txhim kho cov nyhuv kho.

 

Cov txheej txheem MBBR muab cov txiaj ntsig zoo ntawm ob qho tib si lub txaj fluidized thiab kev sib cuag lom oxidation. Nws yog txoj kev kho dej phwj tuaj tshiab thiab ua tau zoo. Nws tso siab rau lub aeration nyob rau hauv lub aeration tank thiab lifting nyhuv ntawm cov dej ntws los ua tus cab kuj nyob rau hauv ib tug fluidized lub xeev, thiab ces tsim ib tug ncua kev loj hlob activated sludge thiab txuas biofilms ua rau lub txaj txaj biofilm siv tag nrho cov reactor chaw, muab tag nrho cov kev ua si rau qhov zoo ntawm ob qho tib si theem txuas thiab raug tshem tawm cov kab mob hauv lub cev, kom lawv tuaj yeem siv lawv lub zog thiab tsis txhob muaj qhov tsis muaj zog los txhawb ib leeg. Sib txawv los ntawm yav dhau los fillers, tshem tawm cov fillers tuaj yeem nkag mus rau hauv cov dej phwj tuaj thiab ntau zaus, yog li lawv hu ua "moving biofilms".

 

2. Qhov zoo thiab qhov tsis zoo ntawm MBBR

 

Piv nrog rau cov txheej txheem activated sludge thiab taag-filler biofilm txoj kev, MBBR tsis tsuas yog muaj kev ua haujlwm siab thiab kev ua haujlwm yooj yim ntawm cov txheej txheem activated sludge, tab sis kuj muaj cov yam ntxwv ntawm kev cuam tshuam kev tiv thaiv, lub hnub nyoog ntev sludge thiab tsawg dua cov sludge nyob rau hauv cov tsoos. biofilm txoj kev.

 

Qhov zoo:

 

(1) Ntim cov yam ntxwv

 

Cov fillers feem ntau yog ua los ntawm polyethylene, polypropylene thiab lawv cov ntaub ntawv hloov kho, polyurethane ua npuas ncauj, thiab lwm yam. Qhov tshwj xeeb lub ntiajteb txawj nqus yog ze rau cov dej, feem ntau yog cylindrical thiab kheej kheej. Nws yog ib qho yooj yim rau dai zaj duab xis, tsis agglomerate, tsis thaiv, thiab yog yooj yim tev tawm.

 

(2) Muaj peev xwm denitrification zoo

 

Ib puag ncig aerobic, anoxic thiab anaerobic yog tsim los ntawm cov ntim khoom, thiab cov tshuaj nitrification thiab denitrification tuaj yeem tshwm sim hauv ib lub reactor, uas muaj cov txiaj ntsig zoo ntawm kev tshem tawm ammonia nitrogen.

 

(3) Cov txiaj ntsig zoo ntawm kev tshem tawm cov organic teeb meem

 

Cov sludge concentration nyob rau hauv lub reactor kuj yog siab, thiab cov sludge feem ntau concentration yog 5-10 lub sij hawm ntawm cov zoo tib yam activated sludge txoj kev, uas yuav siab li 30-40g / L. Txhim kho qhov ua tau zoo ntawm kev kho cov organic, thiab muaj zog cuam tshuam load kuj.

 

(4) Yooj yim tswj thiab tswj

 

Tsis tas yuav tsum tau teeb tsa cov hlua khi rau hauv lub tank aeration, uas ua kom yooj yim rau kev saib xyuas ntawm cov muab tub lim thiab cov khoom siv aeration nyob rau hauv qab ntawm lub tank, thiab txuag peev nyiaj thiab qhov chaw hauv pem teb tib lub sijhawm.

 

Qhov tsis zoo

 

(1) Cov muab tub lim nyob rau hauv lub reactor yog nyob rau hauv ib tug fluidized lub xeev los ntawm lifting nyhuv ntawm aeration thiab dej ntws. Nyob rau hauv qhov tseeb engineering, qhov tshwm sim ntawm lub zos muab tub lim accumulation yog nquag tshwm sim. Txhawm rau kom tsis txhob ntim cov khoom ntim, nws yog ib qho tsim nyog los txhim kho cov txheej txheem ntawm cov kav dej aeration thiab cov qauv ntawm lub reactor. Cov qauv ntawm lub reactor feem ntau txiav txim siab nws cov yam ntxwv hydraulic. Hauv kev tsim vaj tsev tiag tiag, thaum qhov sib piv ntawm ib lub reactor yog li ntawm 0.5 thiab qhov ntev tsis ntau tshaj 3m, nws yog qhov zoo rau cov muab tub lim kom txav mus los. Hauv kev tsim engineering tiag tiag, ntau qhov kev sim yuav tsum tau ua kom zoo dua cov qauv thiab cov yam ntxwv hydraulic ntawm lub reactor, txo kev siv hluav taws xob, thiab txhim kho kev lag luam ntawm MBBR.

 

(2) Lub effluent ntawm lub reactor feem ntau yog nruab nrog daim phiaj los yog daim phiaj kom tsis txhob poob ntawm cov fillers, tab sis nws yog ib qho yooj yim los ua kom txhaws. Hauv qhov project tiag tiag, cov phiaj xwm txav tau tuaj yeem teeb tsa rau kev tu ib txwm siv, lossis lub tshuab cua tshuab tuaj yeem teeb tsa kom tsis txhob txhaws.

 

 

1. Adhesion ntawm biofilm

 

Biofilm adhesion muaj peev xwm - qhov taw qhia tseem ceeb tshaj plaws rau kev ntsuas qhov zoo ntawm cov muab tub lim. Bio-txuas ntxiv nyiaj=thaj chaw tiv thaiv (txog rau kev tsim thiab kev khiav hauj lwm lub xeev ntawm lub muab tub lim) × biological attachment tus nqi ib chav tsev deg cheeb tsam (txog rau kev ua tau zoo ntawm cov muab tub lim)

 

2. Ntim kev ua haujlwm

 

Filler kev ua tau zoo - qhov tseem ceeb tshaj plaws Performance index rau kev soj ntsuam cov roj ntsha adhesion ntawm muab tub lim

 

(1) Filler nto ua haujlwm

 

1. Nto qauv: Nws yog feem ntau suav hais tias qhov saum npoo roughness yog qhov loj thiab cov yeeb yaj kiab dai nrawm nrawm.

 

2. Cov peev txheej saum npoo: Feem ntau, cov kab mob tsis zoo yog qhov tsis zoo, thiab qhov chaw ntawm qhov muab tub lim yog qhov zoo, uas tsim nyog rau kev loj hlob ntawm cov kab mob.

 

3. Hydrophilicity: Microbes yog hydrophilic hais, thiab cov muab tub lim muaj hydrophilicity zoo thiab yog tsim rau microbial kev loj hlob thiab filming.

 

(2) Kev ua haujlwm hydraulic

 

1. Porosity: Lub ntim nyob ntawm qhov muab tub lim, qhov porosity siab.

 

2. Cov duab thiab qhov loj me: cuam tshuam rau lub xeev ntws ntawm cov dej ntws thiab cua ntws.

 

(3) Fluidization kev ua haujlwm

 

Nws muaj feem xyuam rau qhov ntom ntawm cov muab tub lim. Qhov ceev ntawm cov muab tub lim yuav tsum yog 0.97-1.03, thiab fluidization tuaj yeem ua tiav nrog tsawg dua aeration lossis nplawm.

 

3. Kev txheeb xyuas qhov kev loj hlob ntawm dai zaj duab xis

 

 

(1) Visual txiav txim:

 

Lub biofilm yog sib npaug ntawm qhov chaw ntawm tus neeg nqa khoom, thiab qhov ze dua nws yog rau saum npoo ntawm cov cab kuj, qhov denser nws yog, txwv tsis pub lub looser nws yog. Nyob rau tib lub sijhawm, cov xim ntawm cov cab kuj yuav tsaus, uas qhia tau hais tias cov cab kuj tau nkag mus rau theem pib.

 

(2) Kev txiav txim los ntawm microscopy:

 

Lub biofilm muaj cov qauv ntom ntom thiab muaj ntau hom microbial. Tus naj npawb ntawm sessile ciliates, bellworms, thiab cladworms yog feem ntau. Cov tsos ntawm ib tug me me ntawm rotifers thiab ua luam dej ciliates qhia txog kev loj hlob ntawm biofilms.

 

2. Kev cog qoob loo ntawm biofilm

 

Kev cog qoob loo ntawm biofilm yog los tsim thiab sau qee cov kab mob hauv cov kab mob hauv kev kho mob los ntawm qee txoj kev, kom cov biofilm ntawm cov muab tub lim nce mus txog qee qhov tuab, thiab nws txoj kev cog qoob loo feem ntau suav nrog kev cog qoob loo zoo li qub thiab kev cog qoob loo dynamic.

 

* Kev cog qoob loo zoo li qub

 

Lub npe hu ua kab lis kev cai zoo li qub yog: txhawm rau tiv thaiv cov kab mob tshiab los ntawm kev khiav tawm ntawm cov dej, kom ntau li ntau tau los muab lub sijhawm sib cuag ntawm cov kab mob thiab cov txheej muab tub lim, txhawm rau txhawm rau txhawm rau txhawm rau tsim cov biofilms, nyob rau hauv lub sijhawm sib cuag ntawm cov kab mob thiab cov txheej txheem muab tub lim, txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau tsim cov biofilms. Thawj theem, txhawm rau kom tsis txhob muaj cov khoom noj khoom haus ntawm cov dej khib nyiab, yog li C: N: P=100: 5: 1 piv ntawm kev ntxiv cov as-ham substrates xws li urea, diamine thiab qab zib. Ua ntej, inoculate sludge (10% biochemical zoo ntim) thiab cov twj tso kua mis pov tseg rau hauv lub tank biochemical, thiab tom qab ntawd pib aeration kab lis kev cai. Lub ntim ntim ntawm cov muab tub lim rau hauv lub tank biochemical yog 35% -40% ntawm qhov ntim ntawm cov tshuaj tiv thaiv tank. Cia sawv ntsug rau 4-5h yam tsis muaj aeration rau inoculate immobilized microorganisms ntawm lub muab tub lim, ces aerate rau 1h, ces sawv ntsug rau 2h, aerate rau 1h, thiab rov ua haujlwm. Tom qab 4-5 hnub, qhov chaw ntawm qhov muab tub lim tau npog tag nrho nrog biofilm. Nruam me me dej ntws pib los ntawm 6 hnub.

 

* Kev cob qhia dynamic

 

Tom qab 6 hnub ntawm cov kab lis kev cai tho txawv, cov txheej nyias nyias ntawm cov xim daj-xim av tau loj hlob ntawm qhov chaw ntawm qhov muab tub lim, yog li nws tau hloov mus rau cov dej tsis tu ncua, kev cog qoob loo, kho cov dej, thiab tswj cov pa oxygen ntawm 2 ~ 4mg / L (siv Dissolved oxygen meter ntsuas cov pa oxygen). Tom qab li ntawm 15 hnub, muaj qee cov kab mob amoeba thiab cov kab roaming ntawm qhov muab tub lim (saib nrog lub tshuab kuaj kab mob), thiab cov muab tub lim hnov ​​​​ntxhiab thiab nplua thaum kov los ntawm tes. Tom qab 20 hnub, protozoa xws li flagellates, bellworms, thiab paramecium dawb kab mob tshwm sim. Tom qab 20 hnub ntawm kev cog qoob loo, metazoans xws li rotifers thiab nematodes tshwm sim, uas qhia tau tias biofilms tau loj hlob. tuaj yeem pib ua haujlwm tsis tu ncua

 

3.The domestication theem ntawm biofilm

 

Lub hom phiaj ntawm domestication yog xaiv cov kab mob uas hloov mus rau qhov tseeb dej zoo, tshem tawm cov kab mob tsis zoo, thiab ua rau cov kab mob nitrifying, denitrifying kab mob, thiab phosphorous accumulating kab mob los ua tus tseem ceeb flora los ntawm domestication rau kev kho cov txheej txheem uas muaj cov kev ua ntawm denitrification thiab phosphorus tshem tawm. . Txoj kev tshwj xeeb yog tswj cov kev ua haujlwm ntawm cov txheej txheem ua ntej, thiab tom qab ntawd nruj me ntsis tswj cov txheej txheem tswj tsis tau. Qhov nruab nrab DO yuav tsum tau tswj ntawm 2 ~ 3mg / l, thiab lub sij hawm aeration ntawm lub tank aerobic yuav tsum tsis pub tsawg tshaj 5 teev. Thaum lub sijhawm txheej txheem no, ua txhua hnub Rau kev txiav txim siab ntawm ntau yam dej zoo ntsuas thiab kev tswj tsis tau, thaum qhov nruab nrab tuab ntawm biofilm yog li ntawm 0.2-0.5mm, biofilm cultivation yuav ua tiav, kom txog rau thaum lub effluent BOD5, SS, CODCr thiab lwm yam ntsuas raws li tus tsim yuav tsum tau

 

 

1. Nws yuav siv sij hawm ntev npaum li cas rau cov zaj duab xis muab tub lim kom dai thaum lub caij ntuj no debugging?

 

Hauv ib lub hlis, nws tuaj yeem ua tiav tus qauv zoo. Yog hais tias zaj duab xis yog dai, nws yog ib tug txheej txheem. Peb faib cov yeeb yaj kiab ua ob lub kaum sab xis. Thawj qhov yog tias peb qhov muag liab qab tuaj yeem pom qhov pom tseeb biofilm ntawm qhov muab tub lim. Lub sijhawm no yuav siv sijhawm xya hnub; qhov thib ob yog tias tus qauv yog raws li tus qauv. Lub sij hawm, lub sij hawm no yog tej zaum nyob rau hauv ib lub hlis nyob rau hauv lub caij ntuj no; Qhov thib peb yog lub sij hawm thaum lub biofilm yog tag nrho mature, qhov no yuav ntev dua, vim hais tias los ntawm ib tug kws tshaj lij ntawm view, tag nrho cov maturity ntawm biofilm yuav tsum muaj tsawg kawg yog ib lub caij ntuj no thiab lub caij ntuj sov alternation. Lub colony ntawm nws tuaj yeem ua tiav kev ruaj ntseg. Piv txwv li, txawm hais tias los ntawm qhov kev xav ntawm kev kawm, peb qhov kev ruaj ntseg yog tej zaum tom qab lub caij ntuj no thiab lub caij ntuj sov. Los ntawm qhov pom ntawm peb cov txiaj ntsig, cov dej tuaj yeem ncav cuag tus qauv hauv 30 hnub, thiab los ntawm qhov pom ntawm qhov muag liab qab, nws yog li ntawm xya hnub.

 

2. Puas yog cov txheej txheem MBBR yuav tsum tau ntxiv cov tshuaj lom neeg ntxiv?

 

Hauv kev txiav txim siab nruj, MBBR tsis tas yuav muaj cov kab mob sib ntxiv, yog li nws tuaj yeem ua kom muaj txiaj ntsig zoo los ntawm kev ua kom zoo dua qub, xws li peb cov kab mob nitrifying lossis denitrifying cov kab mob, vim tias nws cov kab mob lom neeg muaj txiaj ntsig zoo rau kev sib txuas ntawm cov kab mob cuam tshuam, xws li ammonia. Hauv qee qhov xwm txheej, nws yog qhov tsim nyog rau kev txuas ntawm peb cov kab mob ammonia. Tom qab ntawd, nyob rau hauv cov dej tshwj xeeb, piv txwv li, muaj qee qhov nyuaj-rau-degrade dej zoo lossis dej zoo. Lub hauv paus yog ib leeg xwb, thiab muaj qee qhov kev txiav txim siab inoculants uas muaj cov teebmeem tshwj xeeb. Nyob rau hauv txoj kev no, inoculants tuaj yeem raug ntxiv raws li qhov pib inoculation, thiab tsis tas yuav tsum tau ntxiv ntxiv. Txhawm rau ua kom tiav, nws tsis tsim nyog nyob rau hauv cov xwm txheej ntawm cov dej phwj hauv tsev, thiab nyob rau hauv qee qhov tshwj xeeb cov dej khib nyiab, nws tuaj yeem siv los ua kev tshawb fawb los ua cov kev tshawb fawb ntsig txog.

 

3. Puas yog MBBR xav tau denitrification thiab flushing?

 

Qhov zoo tshaj plaws ntawm MBBR yog piv nrog cov tshuaj biofilms, nws tsis tas yuav rov qab ntxuav, vim tias nws cov biofilms tau txiav tawm. Los ntawm peb cov kev tshawb fawb, peb pom tias thaum koj cov ntaub ntawv biofilms muaj zog dua, lawv cov hlwb yuav muaj ntau qhov zais ntawm cov polymer txheej, thiab nws cov nplaum yuav muaj zog. Tom qab ntawd thaum nws muaj hnub nyoog, cov kab mob extracellular txo qis, thiab nws cov viscosity tsis muaj zog, nws yuav cia li poob tawm thaum lub sij hawm tus txheej txheem ntawm fluidization, thiab ces ib tug tshiab biofilm yuav loj hlob, yog li nws tsis tas yuav tsum tau ntxuav.

 

4. Dab tsi yog qhov tseem ceeb ntawm MBBR?

 

Lub hauv paus ntawm MBBR yog ob, ib qho yog muab tub lim thiab lwm qhov yog fluidization. Cov muab tub lim yog siv los ua tus nqa khoom. Tsis muaj kev tshawb fawb sib koom ua ke los qhia tias muaj kev cuam tshuam ntau npaum li cas nws qhov kev ua tau zoo, tab sis nws cov duab yuav muaj kev cuam tshuam rau fluidization. Yog li ntawd, feem ntau siv fillers yog ca cylindrical fillers nyob rau hauv tsev thiab txawv teb chaws, yog li kev tshawb fawb ntawm fillers tau txuas ntxiv mus. Koj tuaj yeem sim saib seb cov fillers sib txawv twg muaj cov txiaj ntsig zoo tshaj plaws. Tab sis los ntawm kev xav ntawm engineering, qhov ntev yuav tsum tau soj ntsuam yog kev ua tau zoo, kev ua yeeb yaj kiab ceev, qhov kawg stabilization nyhuv, lub neej, hnav tsis kam, thiab lwm yam, yog li txij li tam sim no, cov tub ntxhais ntawm cov cab kuj tseem yog fluidization.

 

5. Tus nqi filling ntawm MBBR system yog dab tsi?

 

Qhov kev txwv tsis pub dhau tus nqi uas tau txheeb xyuas txog tam sim no yog 67%, qhov loj tshaj plaws aerobic cheeb tsam uas tuaj yeem ua tiav hauv qhov project yog 60%, thiab thaj tsam hypoxic yog 50%.

 

6. Puas yog qhov muab tub lim ntawm MBBR yuav tsum tau hloov kho?

 

Kuv xav tias cov fillers tsis tas yuav hloov kho. Fillers uas twb muaj lawm tsis muaj teeb meem. Sprun tau ua pov thawj los ntawm ntau qhov kev coj ua hauv engineering uas cov fillers tseem tuaj yeem ua tiav cov txiaj ntsig zoo. Hauv kuv ob lub qhov muag, kev hloov pauv hloov pauv tseem yog qeb tshawb fawb. Tsis tau nyob rau hauv engineering qeb.

 

7. Puas tuaj yeem MBBR tseem khiav thaum dej kub yog 3 degrees?

 

Cov xwm txheej tam sim no yog nyob hauv Xinjiang, qhov chaw dej kub nyob ib puag ncig 7 txog 8 degrees Celsius tuaj yeem ua haujlwm ruaj khov. Cov dej kub ntawm 3 degrees tsis tau ntsib hauv Suav teb, tab sis nws tau nkag siab tias cov dej nkag ntawm Norwegian Nordheim Wastewater Treatment Plant (uas ua haujlwm rau lub caij ntuj no Olympics) txawv teb chaws yog dej khov thiab daus yaj dej, thiab cov dej kub yog 3 degrees. . Tom qab kev xyaum, nws tuaj yeem ua tau raws li tus qauv.

 

8. Puas yog tus muab tub lim yuav ua rau sludge expansion?

 

Qhov laj thawj tseem ceeb ntawm kev tsim cov sludge bulking yog cov kab mob filamentous, yog li ntawv ceeb toom los ntawm txawv teb chaws qhia tau hais tias cov fillers pab kom tsis muaj zog sludge bulking vim hais tias nws muaj peev xwm ua txhaum lub "ntev-zoo li" cov kab mob filamentous nyob rau hauv lub sludge system. Nws yog ib txwm sludge floc, thiab qhov loj ntawm cov sludge floc yog ntau me dua qhov loj ntawm cov muab tub lim, nws yuav tsis tawg cov sludge, yog li los ntawm kev tshawb fawb txawv teb chaws, MBBR yog qhov zoo los txhim kho cov sludge daws cov cuab yeej, thiab los ntawm peb cov engineering. Hauv kev xyaum, nws tsis tau pom tias lub kaw lus siv MBBR muaj cov yam ntxwv ntawm cov sludge bulking

 

 

*MBBRyog ib lub txaj txaj biofilm reactor, uas siv cov yas yeeb yaj kiab dawb-floating nruab nrab kom cov kab mob ua kom cov kab mob loj hlob. Cov yas zaj duab xis nruab nrab xav tau kev ncua, yog li cov ntaub ntawv yuav tsum muaj kev sib tiv tauj ntawm cov pa phem thiab cov biofilm, thiaj li ua kom tau txais txiaj ntsig.

 

Cov yam ntxwv ntawm MBBR:

 

1. Kev tsim kho yooj yim thiab kev ua haujlwm yooj yim.

 

2. Qhov kev tshem tawm ntawm cov organic teeb meem yog siab, thiab cov nyhuv ntawm nitrogen thiab phosphorus tshem tawm yog zoo.

 

3. Nws tsis yooj yim rau kev thaiv thiab tsis tas yuav rov qab ntxuav tsis tu ncua.

 

4. Yuav tsum muaj txheej txheem nag lossis daus tom qab kev kho mob.

 

*MBRstands rau membrane bioreactor, uas yog ib tug txheej txheem uas combines kev sib cais membrane tshuab nrog activated sludge. Feem ntau ntawm cov membrane bioreactors yog immersed nyob rau hauv cov dej phwj tuaj, thiab cov organic teeb meem nyob rau hauv cov dej phwj yog kho los ntawm cov kab mob uas loj hlob nyob rau saum npoo ntawm daim nyias nyias.

 

Feature ntawm MBR:

 

1. Nws tuaj yeem ua haujlwm nyob rau hauv qhov siab ntim load thiab qis sludge load, thiab qhov seem sludge tso zis tsawg (theoretically, xoom sludge paug tuaj yeem ua tiav), uas txo cov nqi kho sludge.

 

2. Siab MLSS concentration tuaj yeem khaws cia hauv lub reactor, thiab lub ntim ntim ntawm cov cuab yeej ua haujlwm siab, yog li txo qhov chaw hauv pem teb.

 

3. High microbial biomass yuav tsum muaj aeration txaus, yog li kev siv hluav taws xob siv tau ntau dua.

 

4. Nws yog ib qho yooj yim uas yuav ua rau daim nyias nyias fouling, uas yuav tsum tau ntxuav cov membrane tsis tu ncua los yog rov qab ntxuav.

 

*FBRfixed-bed biofilm reactor, nws txoj haujlwm ua haujlwm zoo ib yam li MBBR, qhov txawv yog tias biofilm txuas nrog cov khoom ruaj khov. Aeration nyob rau hauv cov khoom siv block muab cov pa oxygen xav tau rau kev loj hlob ntawm biofilm thiab tswj kev ntxuav ntawm zaj duab xis thaiv.

 

1. Nws tuaj yeem hloov kho rau cov dej khib nyiab nrog kev hloov pauv loj hauv cov dej ntim thiab cov ntsiab lus organic.

 

2. Nws yooj yim dua rau kev khiav lag luam dua li MBBR thiab muaj kev siv hluav taws xob qis dua (vim hais tias ncaj qha aeration hauv qab).