Cov chaw pabcuam kev loj yog ib qhov chaw nyuaj tshaj plaws hauv kev lag luam dej los kho. Cov neeg caij tsheb khiav nrawm nrawm nrog cov hnub so thiab caij nyoog, thawb ob qho tib si ntws thiab cov pa phem thauj khoom nce thiab nqis hauv hnub. Lub kaw lus yuav tsum ua kom tau raws li cov qauv tso tawm los ntawm txhua qhov kev sib tw, ua kom cov nqi khiav haujlwm qis, thiab - nce - kom nws cov pa roj carbon tsawg tsawg. Tsab ntawv xov xwm no tau sib piv ob txoj haujlwm lom neeg muaj zog, Membrane Bioreactor (MBR) thiab Moving Bed Biofilm Reactor (MBBR), los ntawm qhov project retrofit tiag tiag ntawm thaj chaw pabcuam kev loj hauv Fujian Xeev, Tuam Tshoj, qhov chaw laus MBR tau hloov los ntawm MBBR integrated unit ua ke nrog lub hnub ci photovoltaic system. Qhov tshwm sim yog qhov tsis huv, cov ntaub ntawv- rov qab sib piv ntawm kev ua tau zoo, tus nqi, thiab cov pa roj carbon emissions.
Vim li cas cov chaw pabcuam txawv
Ib cheeb tsam kev pabcuam kev loj tsis yog lub nroog cog qoob loo uas muaj kev cuam tshuam tsis tu ncua. Nws qhov profile ntws yog tswj hwm los ntawm cov xwm txheej tsis sib xws: hnub so mus ncig ua si, hnub so siab kawg, thiab hnub so ntsiag to. Cov kab mob lom neeg ntxub kev ua koob tsheej - thiab - kev tshaib kev nqhis vim qeeb - cov kab mob loj hlob - tshwj xeeb tshaj yog nitrifiers - tau yooj yim ntxuav tawm thaum lub sij hawm hydraulic spikes thiab tshaib plab thaum lulls. Yog li ntawd, tus tsim yuav tsum muaj qhov tseem ceebpoob siab -load tsis kamthiab kev ua haujlwm yooj yim, txhim khu kev qha tshaj li kev kho mob muaj peev xwm.
Compounding qhov kev sib tw, lub vev xaib muaj peb qhov teeb meem tshwj xeeb uas ua rau rov qab ua dua:
Cov nqi kho membrane siab.MBR daim nyias nyias yuav tsum tau ntxuav cov tshuaj tsis tu ncua thiab kev hloov pauv thaum kawg - lub nra hnyav dua rau lub chaw tsis muaj kev mob siab rau tag nrho - cov neeg ua haujlwm kho dej lub sijhawm.
Cov cuab yeej laus.Thawj qhov system tau poob qis hauv kev ntseeg tau, nrog rau kev ua haujlwm poob qis zuj zus ntxiv.
Loj hlob.Kev nce tsheb thauj neeg caij tsheb tau thawb lub chaw tshaj nws qhov kev tsim qauv qub, xav tau kev kho mob ntau dua li MBR uas twb muaj lawm tuaj yeem muab kev lag luam.
Lub peev xwm tsim yog50 m³/d. Kev muaj txiaj ntsig zoo sib txawv nrog cov nyiaj so koobtsheej caij tsheb, thiab cov khoom siv hluav taws xob yuav tsum ua tau raws li Chav Kawm 1 tus qauv (GB 8978-1996). Ib qho kev daws teeb meem yuav tsum tau tswj cov viav vias, haum qhov chaw nruj nruj, thiab khaws cov peev thiab cov nqi khiav lag luam qis.
Txheej Txheem Xaiv Thiab Tsim
MBR muaj cov dej ntws zoo heev tab sis nqa cov nqi kho mob siab. MBBR muaj kev ua tau zoo sib luag, muaj zog poob siab-load tsis kam, kho yooj yim, thiab cov nqi khiav lag luam qis dua - cov yam ntxwv uas qhia ncaj qha mus rau qhov sib txawv - thauj khoom, qis- cov neeg ua haujlwm qhov tseeb ntawm thaj chaw pabcuam. Lub retrofit xaiv ib pob MBBR integrated unit:8,000 × 2,400 × 2,500 mm, nrog HDPE cov cab kuj ntawm a30% filling ratiothiab lub sijhawm tsim biofilm ntawm 16 hnub.
Ob txoj kev xaiv tsim nyog tau txais kev saib xyuas. Ua ntej, chav tsev yog tswj los ntawm antse PLC systemnrog kev saib xyuas tsis siv neeg thiab chaw taws teeb APP ua haujlwm, yog li cov neeg ua haujlwm tuaj yeem saib xyuas cov nroj tsuag los ntawm txhua qhov chaw yam tsis muaj nyob ntawm qhov chaw. Thib ob, aHnub ci photovoltaic system ntsuas ntawm 761.75 kWptau nruab los hloov daim phiaj siv hluav taws xob - tig cov pa roj carbon thiab lub zog sib npaug ntawm nws lub taub hau. Table 1 teev cov hom phiaj tsim muaj txiaj ntsig thiab muaj txiaj ntsig zoo.
| Parameter | pH | CODCr | BOD 5 | SS | NH₃-N |
| Effluent std | 6-9 | Tsawg dua los yog sib npaug li 100 | Tsawg dua los yog sib npaug li 70 | Tsawg dua los yog sib npaug li 20 | Tsawg dua los yog sib npaug li 15 |
| Tsim muaj peev xwm | 6-9 | Tsawg dua los yog sib npaug li 400 | Tsawg dua los yog sib npaug li 200 | Tsawg dua los yog sib npaug li 200 | Tsawg dua los yog sib npaug li 100 |
Chav kawm 1 tso tawm tus qauv ntawm GB 8978-1996. Txhua units yog mg / L tshwj tsis yog pH. Cov txheej txheem kho dua tshiab yog qhia hauv qab no.
Kev sib piv kev ua tau zoo
Tom qab ua haujlwm, MBBR system tau saib xyuas ntau dua 3 hnub sib law liag thiab muab piv rau ua ntej -retrofit MBR cov ntaub ntawv. Table 2 qhia cov txiaj ntsig - thiab lawv tawm tsam qhov kev xav tias tsuas yog ib daim nyias nyias tuaj yeem xa cov khoom zoo tshaj -.
| Parameter | Muaj hwj chim | MBR Effluent | MBBR Effluent | Kev txhim kho |
| CODCr | 182-205 | 28-36 | 25-30 | +2.33% |
| BOD 5 | 73-86 | 8.1-11.4 | 7.8-9.7 | +1.25% |
| SS | 122-145 | 3-9 | 5-6 | +0.37% |
| NH₃-N | 63.7-71.5 | 3.81-4.35 | 2.44-4.70 | +0.76% |
| Roj | 2.5-4.2 | 0.09-0.15 | <0.06 | - |
Txhua units yog mg / L tshwj tsis yog pH. MBBR system ua tiavsib npaug los yog zoo dua effluent zoo nyob rau txhua qhov parameter, nrog kev ua haujlwm ruaj khov nyob rau hauv cov xwm txheej hloov pauv. Tshwj xeeb tshaj yog, MBBR effluent NH₃-N mus txog qis li 2.44 mg/L - ntaus MBR qhov zoo tshaj plaws - thiab roj tau tsav qis dua 0.06 mg/L. Lub biofilm, tsis yog daim nyias nyias, muab qhov thaiv.
Cov txiaj ntsig nyiaj txiag
Daim duab nqi yog qhov twg MBBR cais nws tus kheej los ntawm MBR. Vim tias qhov retrofit rov siv cov tso tsheb hlau luam uas twb muaj lawm thiab teeb tsa lub ntim ntim, peev peev tsuas yog~ 400,000 RMB tsis muaj kev ua haujlwm tshiab rau pej xeem. Cov nyiaj khaws cia ua haujlwm xyoo tom qab xyoo:
Carbon qhov chaw txuag ntawm 51%.Sab nraud cov pa roj carbon ntxiv poob los ntawm sodium acetate ntawm 22.78 kg / d (MBR) rau qabzib ntawm 11.09 kg / d (MBBR). Lub thicker biofilm rov ua dua cov pa roj carbon monoxide, kom deb li deb tau tsawg dua cov pa roj carbon monoxide rau denitrification.
Kev txuag nyiaj ua haujlwm ntawm ~ 50,000 RMB / xyoo.Lub ntse PLC thiab tej thaj chaw deb APP soj ntsuam tshem tawm cov kev niaj hnub ntawm - kev mus xyuas qhov chaw, txiav cov neeg ua haujlwm raug nqi ntau heev.
Kev txuag hluav taws xob ntawm 33%.Lub zog hluav taws xob niaj hnub poob los ntawm 69.1 kWh / d (MBR) mus rau 46 kWh / d (MBBR), vim tias cov txheej txheem biofilm tsis xav tau cov twj tso kua mis membrane, cua scouring, lossis cov khoom siv tshuaj ntxuav tes.
Carbon Footprint Analysis
Cov ncauj lus kom ntxaws carbon footprint tsom xam tau ua raws li qhovIPCC 2019 Cov Lus Qhia, suav nrog emissions ncaj qha (CH₄, N₂O), indirect emissions (hluav taws xob, tshuaj), thiab carbon txo (hnub ci PV). Table 3 qhia txog cov txiaj ntsig.
| Qeb | Yam khoom | tCO2-eq/104t | kgCO2-eq/d |
| Ncaj qha | CH₄ txo | -0.039 | - |
| Ncaj qha | N₂O txo | -0.017 | +0.0596 |
| Kev txo hluav taws xob | 1.891 | - | |
| Tsis ncaj | Tshuaj txo qis | 10.107 | 11.998 |
| Lwm yam | Cov dej tsis zoo | -0.013 | -0.064 |
| Hnub ci PV | Lub zog tauj dua tshiab | - | 0.7772 |
Peb qhov kev tshawb pom sawv tawm los ntawm kev txheeb xyuas:
Indirect emissions poob loj heev.Tag nrho indirect txo mus txog 11.998 tCO2-eq / 104t, uas84.24% los ntawm kev txuag tshuajthiab 15.76% los ntawm hluav taws xob. Txiav cov pa roj carbon- qhov kev noj tshuaj tsis yog tsuas yog kev ua haujlwm xwb- tus nqi yeej - nws yog ib qho loj tshaj plaws carbon qib hauv cov txheej txheem.
Hnub ci PV dominated tag nrho cov pa roj carbon tsawg.Lub photovoltaic array tau pab92.88% ntawm tag nrho cov pa roj carbon tsawg, tsim 799,800 kWh / xyoo ntawm hluav taws xob tauj dua tshiab. Rau cov chaw uas muaj kev sib cais nrog lub ru tsev lossis thaj av muaj, hnub ci yog txoj hauv kev nrawm tshaj plaws los thawb lub chaw kho mob mus rau net xoom.
MBBR yog intrinsically leaner.Kev siv cov pa roj carbon ntau yog2.1 × qistshaj MBR, thiab kev siv hluav taws xob yog 33% qis dua - ua ntej hnub ci tseem suav. Cov txheej txheem nws tus kheej emits tsawg dua, thiab tom qab ntawd hnub ci tshem tawm feem ntau ntawm qhov seem.
Kev sib piv Technology Summary
| Qhov xwm txheej | MBR | MBBR |
| Cov dej tsis zoo | Zoo heev | Sib npaug los yog zoo dua |
| Kev ruaj ntseg ntawm cov membrane | Siab | Tsis xav tau |
| Kev siv cov pa roj carbon | Lub hauv paus | 51% tsawg dua |
| Kev siv hluav taws xob | Lub hauv paus | 33% tsawg dua |
| Shock load kuj | Zoo | Stronger (biofilm) |
| Kev ua haujlwm nyuaj | nyuaj | Yooj yim |
| Variable flow haum | Nruab nrab | Zoo heev |
Ntsiab Cai
Rau cov dej rov siv dua nrog cov peev nyiaj, MBR tseem yog tus qauv kub.Thaum cov effluent destined rau rov siv dua thiab zoo yog ib qho tseem ceeb, lub membrane qhov kev ntseeg siab yog tsim nyog rau nws cov nqi.
Rau kev ua raws li - tso tawm cov haujlwm nrog tus nqi rhiab heev, MBBR yeej.Qhov project no qhia tau hais tias MBBR xa cov kev ua tau zoo sib npaug nrog 51% cov pa roj carbon tsawg, 33% hluav taws xob tsawg, thiab tsis muaj kev saib xyuas daim nyias nyias - thaum ua tau txhim kho feem ntau cov dej tsis zoo.
Hnub ci PV kev koom ua ke txhawb nqa cov txiaj ntsig carbon.MBBR + hnub ci kev sib xyaw ua ke txo qis kev tso tawm ncaj qha los ntawm 12 tCO2-eq / 104t, nrog cov array muab 92.88% ntawm tag nrho cov pa roj carbon tsawg.
Kev tswj ntse yog lub zog sib npaug.Kev saib xyuas tsis siv neeg thiab chaw taws teeb APP kev ua haujlwm txo qis kev ua haujlwm, txhim kho kev siv lub zog, thiab ua kom muaj tseeb kev tswj xyuas tej thaj chaw deb - tseem ceeb rau cov neeg ua haujlwm - tshaib plab decentralized sites.
MBBR yog qhov zoo tagnrho rau kev faib tawm, sib txawv -load daim ntawv thov- thaj chaw pabcuam, chaw so, thiab cov zej zog nyob deb nroog - qhov kev ntseeg siab, kev yooj yim, thiab lub neej- tus nqi mus los yog qhov txiav txim siab.
Xaus
Qhov project Fujian txoj kev loj no qhia tau hais tias MBBR thev naus laus zis, ua ke nrog kev tswj ntse thiab lub zog txuas ntxiv, tuaj yeemphim lossis tshaj MBR kev kho mobthaum xa cov kev txuag nyiaj ntau hauv cov nqi khiav lag luam thiab cov pa roj carbon emissions. Qhov 51% txo qis hauv cov pa roj carbon monoxide, 33% txo qis hauv kev siv hluav taws xob, thiab kev tshem tawm tag nrho ntawm kev saib xyuas daim nyias nyias ua rau MBBR yog ib qho kev xaiv zoo rau cov kev siv decentralized uas muaj kev ntseeg siab, yooj yim, thiab lub neej- cov nqi voj voog yog qhov tseem ceeb.
Zaj lus qhia txuas mus dhau qhov chaw pabcuam. Txhua qhov chaw uas ntsib cov khoom hloov pauv, cov neeg ua haujlwm tsawg, pob nyiaj siv nruj, lossis lub net-zero mandate yuav tsum sib piv MBBR + hnub ci tiv thaiv daim nyias nyias-raws li lwm txoj hauv kev ua ntej cog lus rau kev kho tsheb ciav hlau. Cov ntaub ntawv ntawm no qhia tau hais tias cov txheej txheem biofilm, tsim kom zoo, tsis muaj kev cuam tshuam rau qhov zoo - nws yog kev txiav txim siab ua lag luam zoo dua.
Tsab ntawv xov xwm no yog ua raws li daim ntawv "Kev Tshawb Fawb Sib Piv ntawm MBR thiab MBBR Cov Txheej Txheem hauv Txoj Kev Pabcuam Kev Loj Hlob Cov Chaw Kho Dej" (Li Lin, 2025). Yog tias koj tab tom tshawb nrhiav cov kev kho mob lom rau cov ntawv thov kev lag luam, ncav cuag los sib tham seb MBBR puas haum rau koj qhov project.
Hloov MBR Nrog MBBR + Hnub Ci, Txiav Zog 33%
Ib chav MBBR kev sib xyaw ua ke sib txuam MBR effluent thaum txiav cov pa roj carbon monoxide 51% thiab hluav taws xob 33%. Tshawb nrhiav Juntai MBBR media rau kev faib tawm, lub zog-txuag kev hloov kho dua tshiab.