Kev sib piv ntawm Ob-theem AO thiab Peb-theem AO Txheej Txheem: Ib qho Kev Tsim Kho Kev xav
Tam sim no, feem ntau ntawm cov chaw kho dej khib nyiab (WWTPs) hauv Suav teb tau txais cov activated sludge-raws li cov txheej txheem rau kev kho dej khib nyiab. Ntawm cov no, yuav luag ib nrab siv Anoxic-Oxic (AO) txheej txheem. Cov txheej txheem AO muaj qhov zoo xws li kev ua haujlwm ruaj khov thiab tus nqi qis. Txawm li cas los xij, nws tag nrho cov nitrogen (TN) tshem tawm kev ua haujlwm, feem ntau yog li ntawm 60% mus rau 80%, yog txwv los ntawm cov khoom siv rov ua dua tshiab. Nrog rau cov kev xav tau ntawm lub teb chaws muaj zog ntxiv rau kev tshem tawm nitrogen, cov pa ib leeg -theem AO cov txheej txheem feem ntau tawm tsam kom tau raws li qhov xav tau ntawm kev kho TN. Ntau-theem AO cov txheej txheem tau tshwm sim li no. Los ntawm kev sib txuas ob lossis ntau dua AO theem hauv koob, nitrate uas tsim nyob rau hauv theem ua ntej aerobic muab lub substrate rau denitrification nyob rau hauv lub tom ntej anoxic theem. Qhov no ua tiav lub hom phiaj ntawm kev txo qis cov khoom siv rov ua dua sab hauv thaum txhim kho tag nrho TN tshem tawm. Txawm li cas los xij, ntau theem kuj tuaj yeem ua rau muaj kev ua haujlwm nyuaj. Yog li ntawd, feem ntau siv configurations nyob rau hauv Tuam Tshoj tam sim no yog ob-theem thiab peb-theem AO txheej txheem. Daim ntawv no nthuav tawm kev sib piv ntawm ob-theem thiab peb-theem AO cov txheej txheem siv WWTP nyob rau yav qab teb Tuam Tshoj raws li cov ntaub ntawv kawm, aiming muab cov ntaub ntawv siv rau kev xaiv cov kev qhia hauv cov haujlwm zoo sib xws.
1 Project Overview
WWTP nyob rau yav qab teb Suav teb npog thaj tsam ntawm 8 hectares. Nws thawj lub peev xwm tsim tau yog 90,000 m³ / d, nrog cov dej ntws zoo uas yuav tsum tau ua kom tau raws li Qib A tus qauv ntawm "Tshem Tawm Cov Khoom Siv Hluav Taws Xob rau Kev Kho Dej Hauv Nroog" (GB 18918-2002) thiab "Dej Pollutant Discharge Limits" ntawm Guangdong 44/26-2001) (tom qab no hu ua "Quasi-Class V"). Cov nroj tsuag tau ua haujlwm tag nrho. Raws li kev npaj tsim nyog, yuav tsum muaj kev nthuav dav. Cov qauv effluent yav tom ntej, raws li qhov xwm txheej tam sim no, xav tau los txiav txim siab txog qhov yuav tsum tau ua ntev ntawm TN Tsawg dua lossis sib npaug li 10 mg / L. Ua tib zoo xav txog qhov xwm txheej ntawm qhov chaw, qhov kev tsim kho pej xeem rau qhov kev nthuav dav no tau teeb tsa ntawm 70,000 m³ / d. Cov nroj tsuag yuav ua haujlwm ntawm 50,000 m³ / d nyob rau lub sijhawm ze thiab ncav cuag 70,000 m³ / d nplai nyob rau lub sijhawm ntev, nqa cov nroj tsuag tag nrho cov peev txheej kho rau 160,000 m³ / d. Cov qauv tsim muaj txiaj ntsig thiab cov dej tsis zoo yog qhia hauvTable 1.
Vim muaj kev txwv ntawm qhov chaw, qhov kev npaj ua ntej rau kev nthuav dav tau txais cov txheej txheem ntawm "Multi-stage AO + Peripheral-In Peripheral-Out Rectangular Sedimentation Tank + High-Efficiency Sedimentation Tank + Fiber Plate-. Cov kev tsim vaj tse ntawm txhua lub tsev loj tau tsim rau 70,000 m³ / d nplai, thaum cov cuab yeej raug teeb tsa rau 50,000 m³ / d muaj peev xwm. Lub tank lom yuav siv ntau-theem AO txheej txheem nyob rau lub sijhawm ze. Nyob rau hauv lub sij hawm ntev, ntxiv cov cab kuj raug ncua yuav tsim ib tug hybrid biofilm -activated sludge txheej txheem kom tau raws li 40% muaj peev xwm expansion thov. Rau qhov tsim no, hydraulic tej yam kev mob raug txiav txim siab rau 70,000 m³ / d nplai, thaum kev kho mob lom tau tsim rau 50,000 m³ / d nplai. Raws li qhov phiaj xwm no tau npaj los siv ntau-theem AO txheej txheem, kev sib piv ntawm ob-theem thiab peb-theem AO tau ua.
2 Kev sib piv ntawm Ob-theem thiab Peb-theem AO txheej txheem
2.1 Txheej txheem Flow
Lub hauv paus ntsiab lus tseem ceeb ntawm multi-theem AO txheej txheem yog siv nitrate uas tsim nyob rau hauv aerobic theem ua ntej rau denitrification nyob rau hauv lub tom ntej no anoxic theem, yog li txo cov internal recycle piv. Txoj kev xav, ntau theem ua rau kev tshem tawm TN zoo dua, tab sis kev tswj tau ua ntau dua. Hauv kev xyaum ua engineering, ob-theem thiab peb-theem AO yog qhov tseem ceeb. Lawv cov txheej txheem ntws tau qhia hauvDaim duab 1. Rau ob -theem AO, kev rov ua dua sab hauv yog feem ntau tsim nyob rau hauv thawj theem AO. Rau peb -theem AO, feem ntau tsis ua haujlwm sab hauv. WWTPs hauv Beijing siv ob-theem AO txheej txheem suav nrog Qinghe (400,000 m³/d), Xiaohongmen (500,000 m³/d), Gao'antun (400,000 m³/d), Dingfuzhuang (200,000 m³/d), thiab Huaifang (600,000 m³/d), thiab Huaifang (600,000 m³/d). Cov txheej txheem no muaj cov txiaj ntsig zoo xws li cov cuab yeej siv yooj yim, kev ua haujlwm qis thiab kev saib xyuas tus nqi, muaj zog tiv thaiv kev poob siab, thiab kev sib raug zoo nrog lwm cov txheej txheem, pab txhawb kev txhim kho yav tom ntej kom tau raws li cov txheej txheem ntau dua. Raws li kev xav, peb theem - AO nyob rau hauv series tuaj yeem tshem tawm qhov xav tau ntawm cov khoom siv rov ua dua tshiab, tso cai rau kev faib cov pa roj carbon ntau dua, thiab txo kev nqis peev thiab cov nqi khiav lag luam. Cov txheej txheem no feem ntau yog siv rau hauv cov xwm txheej uas muaj cov pa roj carbon txaus thiab kev xav tau siab rau kev tshem tawm nitrogen. Cov xwm txheej muaj xws li Qujing WWTP hauv Yunnan (80,000 m³ / d), Ninghe District Urban WWTP hauv Tianjin (90,000 m³ / d), Zhangguizhuang WWTP hauv Tianjin (200,000 m³ / d), thiab Daoxianghu Reclamation Plant, 03 (03) hauv Beijing.
2.2 Txheej txheem sib piv
Xav tias tsis muaj av ntxiv rau kev hloov kho yav tom ntej ntawm qhov chaw no, thiab qee qhov haujlwm hauv zos tshiab twb tau siv cov txheej txheem TN effluent tsawg dua lossis sib npaug li 10 mg / L, cov txheej txheem kev sib piv suav hais tias yog lub tank effluent TN tsawg dua lossis sib npaug li 10 mg / L kom haum rau qhov muaj peev xwm ntawm kev nruj ntxiv rau yav tom ntej. Lwm qhov ntsuas tau ua raws li kev tsim cov dej ntws zoo. Raws li kev teeb tsa, rau qhov ze ntawm - lub sij hawm teev ntawm 50,000 m³ / d, qhov siab tshaj plaws Hydraulic Retention Time (HRT) rau lub tank lom yog 18 teev. Kev sib koom ua ke ntawm qhov project qhov xwm txheej tiag tiag, BioWin simulation cov txiaj ntsig, thiab qhov yooj yim ntawm kev sib txuas nrog cov neeg nqa khoom raug tshem tawm, kev sib piv ntawm ob-theem thiab peb-theem AO txheej txheem tau ua.
2.2.1 BioWin Simulation
Thawj HRT ntawm 18 teev tau teeb tsa thiab maj mam txo. Qhov tsawg kawg nkaus HRT ua tau raws li qhov xav tau ntawm TN yog 14 teev. Rau ob -theem AO, cov ntsiab lus muaj txiaj ntsig faib tau yog thaj chaw anaerobic, thawj -stage anoxic zone, thiab thib ob -stage anoxic zone. Rau peb -theem AO, cov ntsiab lus muaj txiaj ntsig yog thaj chaw anaerobic, thib ob-stage anoxic zone, thiab thib peb-stage anoxic zone.
① Kawm nrog Kev Tshaj Tawm Txog Kev Tshaj Tawm Zoo
Teem qhov kev faib tawm ntawm qhov sib piv ntawm 4: 3: 3 rau ob qho tib si, simulations piv rau peb lub tswv yim: ob-theem AO (recycle ratio 200%), peb-theem AO nrog tag nrho cov khoom siv rov ua dua ntawm 200% (100% rov ua dua hauv thawj theem AO {+ 100}% rov ua dua los ntawm thaj tsam thib peb Oxic) AO nrog tus nqi rov ua dua ntawm 100% (tsuas yog rov ua dua hauv thawj theem AO). Cov kev simulation ntws tau qhia hauvDaim duab 2.
Rooj 2qhia cov txiaj ntsig simulation rau qhov kev cuam tshuam ruaj khov ntawm HRT=14 h.
Los ntawm Table 2, nws tuaj yeem pom tau tias rau ob qho -theem thiab peb-theem AO, nws raug nquahu kom teeb tsa cov khoom siv rov ua dua tshiab hauv thawj theem AO kom ua kom muaj zog denitrification hauv thawj thaj tsam anoxic los ntawm kev siv cov pa roj carbon monoxide hauv cov khoom siv raw. Rau peb -theem AO, teeb tsa kev rov ua dua sab hauv los ntawm qhov kawg ntawm theem thib peb mus rau thawj thaj chaw anoxic txhim kho me ntsis kev tshem tawm TN thiab TP, tab sis cov organic teeb meem tshem tawm efficiency txo qis. Qhov no yog qhov kev kwv yees vim tias qhov nce ntxiv hauv lub tank lom neeg vim yog kev rov ua dua tshiab, uas nqa cov pa oxygen yaj mus rau hauv thaj chaw anoxic, cuam tshuam rau thaj chaw anoxic. Tsis tas li ntawd, qhov tseeb HRT hauv txhua cheeb tsam luv luv, thiab kev hloov pauv ntawm kev ua haujlwm tau nrawm, ua rau txo qis kev ua haujlwm. Rau cov yam ntxwv muaj txiaj ntsig zoo li cov hauv qhov project no nyob rau yav qab teb Suav teb, qhov twg TN concentration tsis siab heev, ob -theem AO tuaj yeem ua tau raws li qhov xav tau ntawm cov dej ntws tawm, uas qhia tias tsis muaj qhov zoo sib xws rau peb -theem AO. Rau cov xwm txheej uas muaj COD siab thiab siab TN muaj txiaj ntsig, peb qhov -theem AO tej zaum yuav tsim nyog dua.
② Kev Tshawb Fawb Txog Kev Kho Kom Zoo Tshaj Lij Tshaj Lij Tshaj Tawm
Ob -theem thiab peb-theem AO tau teeb tsa nrog 100% kev rov ua dua tshiab hauv thawj theem AO. Cov kev tshawb fawb tau ua nyob rau ntawm ntau-point influent distribution ratios (1:0:0, 3:7:0, 2:4:4). Ntawm no, 1: 0: 0 txhais tau tias txhua tus neeg muaj peev xwm nkag mus rau pem hauv ntej; 3:7:0 rau peb-theem AO txhais tau hais tias muaj kev cuam tshuam tsuas yog faib rau thaj chaw anaerobic thiab theem AO thib ob. Simulation cov txiaj ntsig rau kev hloov pauv hloov pauv tau qhia hauvTable 3.
Los ntawm Table 3, nws tuaj yeem pom tau tias qhov kev faib tawm muaj qhov cuam tshuam me ntsis ntawm cov dej ntws zoo. Qhov kev sib piv dav dav yog tias qhov kev faib ua feem ntawm cov khoom muaj zog faib rau cov theem tom qab nce, cov dej ntws tawm TN, NH₃-N, thiab TP concentrations nce, thiab aeration thov kuj maj mam nce. Thaum lub zog piv yog 3: 7: 0, qhov peb -theem AO tau pom zoo me ntsis kev tshem tawm TN thiab huab cua qis me ntsis- rau - dej piv dua li ob -theem AO. Txawm li cas los xij, hauv kev ua haujlwm tiag tiag, qhov sib txawv no feem ntau tsis tsim nyog. Ntxiv mus, nce qhov kev faib ua feem ntawm lub zog mus rau theem tom ntej, thaum muaj txiaj ntsig zoo rau kev siv cov pa roj carbon monoxide hauv denitrification, inevitably nce lub load ntawm biochemical cov tshuaj tiv thaiv vim yog cov tswv yim ntawm NH₃-N, organic teeb meem, thiab TP. Yog li ntawd, nws raug pom zoo kom khaws cov ntau-cov ntsiab lus muaj txiaj ntsig zoo thiab ua cov kev hloov pauv raws li qhov tseeb dej zoo thaum ua haujlwm. Nws yog tsim nyog sau cia tias txawm hais tias peb -theem AO tau pom zoo TN tshem tawm ntau dua li ob-theem AO ntawm 2: 4: 4 influent ratio, raws li qhov cuam tshuam rau theem tom qab tau nce, effluent NH₃-N tau qhia ib qho kev nce ntxiv, thaum twg {NH₃ tsis tau raws li tus qauv .
③ Kev kho mob ntawm ob-theem thiab peb-theem AO
Ib qho peb -theem AO configuration tau simulated nrog HRT=14 h, sib npaug ntim piv rau txhua theem (1: 1: 1), 100% cov khoom siv rov ua dua tshiab hauv thawj theem AO, thiab qhov muaj txiaj ntsig zoo ntawm 4: 3: 3, nyob rau hauv ob qho xwm txheej: nrog 100% rov ua dua thiab rov ua dua tshiab. Ib ob -theem AO configuration tau simulated nrog HRT=14 h, 100% cov khoom siv rov ua dua tshiab, thiab qhov sib piv ntawm 4: 3: 3. Cov txiaj ntsig tau pom tias ob-theem AO tau ua tiav qhov kev pom zoo TN ntawm 6.29 mg / L; qhov peb-theem AO nrog 100% kev rov ua dua sab hauv ntawm sab xub ntiag tau ua tiav qhov zoo tshaj plaws tom ntej ntawm 7.51 mg / L; peb -theem AO yam tsis muaj kev rov ua dua tshiab tau ua phem dua ntawm 8.52 mg / L. Tag nrho peb qhov xwm txheej tuaj yeem ua tau raws li qhov yuav tsum tau muaj pov thawj pov thawj (TN Tsawg dua lossis sib npaug li 10 mg / L).
Rooj 4qhia cov qauv kev sib piv ntawm ob-theem thiab peb-theem AO. Nws tuaj yeem pom tau tias rau ob qho txheej txheem, HRT yuav tsum ua kom tau raws li qhov xav tau ntawm TN effluent tsawg dua 18 teev. Lub ntsiab sib txawv ntawm ob txheej txheem yog raws li nram no:
ib. Kev xav, peb -theem AO muaj qhov txwv siab dua; piv txwv li, yog tias ua tau zoo, ob qho tib si peev thiab cov nqi khiav lag luam tuaj yeem qis dua. Ob -theem AO muaj cov khoom siv tsawg dua thiab theem, ua rau cov khoom siv qis dua thiab kev tswj xyuas kev ua haujlwm qis dua.
b. Rau qhov project tshwj xeeb no, txij li lub sijhawm ntev tau txiav txim siab thiab lub tank ntim tau tsim los rau 18-teev HRT, kev nqis peev hauv pej xeem yuav zoo ib yam txawm tias siv ob-theem lossis peb-theem AO. Tus nqi khoom siv rau peb -theem AO yog siab dua. Yog li ntawd, los ntawm kev xav txog kev nqis peev, kev siv ob-theem AO yog kev lag luam ntau dua.
c. Hais txog cov nqi khiav haujlwm, peb -theem AO tuaj yeem txuag tau kwv yees li 0.002 CNY/m³ los ntawm kev tshem tawm 100% cov cawv sib xyaw ua kom rov siv zog. Xav txog qhov muaj peev xwm txo qis hauv kev siv cov pa roj carbon monoxide hauv kev ua haujlwm tiag tiag vim muaj kev hloov pauv anoxic / oxic nyob rau hauv peb -theem AO, qhov sib txawv ntawm cov nqi khiav lag luam yuav zoo li me dua.
2.2.2 Kev Ntsuam Xyuas Ntev -Lub Sijhawm Ncua Sijhawm Tus Neeg Nqa Khoom
Vim yog cov kev cai tshwj xeeb ntawm txoj haujlwm no, lub tank roj ntsha xav tau los txiav txim siab qhov ua tau thiab yooj yim ntawm lub sijhawm ntev - lub peev xwm nthuav dav, piv txwv li, qhov cuam tshuam ntawm kev ntxiv cov cab kuj raug ncua.
Lub hauv paus ntawm cov txheej txheem MBBR yog ua kom cov biomass nyob rau hauv lub reactor los ntawm ntxiv tshem tawm cov cab kuj. Cov no tuaj yeem muab ntxiv rau aerobic, anoxic, lossis anaerobic tso tsheb hlau luam. Txawm li cas los xij, xav txog cov kua dej hauv lub cev, ntxiv rau lawv rau anaerobic lossis anoxic tso tsheb hlau luam yuav ua rau kom muaj zog sib xyaw ua ke. Yog li, ntxiv rau aerobic tso tsheb hlau luam yog qhov pom zoo pom zoo. Lub ntim rau anaerobic / anoxic zones tuaj yeem ntxiv los ntawm kev faib tawm ntawm thaj chaw aerobic, thaum qhov tsis txaus ntawm cov ntim aerobic yog them rau los ntawm cov nqa khoom ntxiv. Hauv lwm lo lus, qhov ntim aerobic tsis txaus yog yug los ntawm qhov chaw saum npoo av ntawm cov neeg nqa khoom raug tshem tawm, uas yog xam raws li cov pa phem hloov pauv los txiav txim siab cov neeg nqa khoom xav tau, tswj hwm qhov sib piv qee qhov kom tau txais qhov ntim ntxiv.
Raws li kev suav, yog tias siv ob -theem AO txheej txheem thiab ntxiv tag nrho cov neeg nqa khoom raug tshem tawm mus rau thawj- theem aerobic cheeb tsam nyob rau lub sijhawm ntev, qhov xav tau MBBR cov neeg nqa khoom yuav tsum yog 2,597,708 m², raug nqi 12.99 lab CNY. Lwm cov khoom siv ruaj khov (xws li MBBR fluidization systems, kev sib xyaw ua ke, kev tshuaj ntsuam xyuas, thiab kev tswj xyuas ntse) yuav yog 6.15 lab CNY. Yog tias siv cov txheej txheem peb -theem AO, vim yog thaj chaw sib cais ntau, thaj chaw MBBR yuav tsum tau muab faib ua 2 ntu (thawj-theem thiab thib ob-theem aerobic zones). Yog li ntawd, tus nqi rau kev txhim kho MBBR cov khoom siv ruaj khov (tsis suav nrog cov neeg nqa khoom lawv tus kheej) yuav nce me ntsis mus rau 7.77 lab CNY, thaum tus nqi thauj khoom tseem zoo ib yam. Qhov no txhais tau hais tias kev siv peb qhov -theem AO yuav nce kev nqis peev yav tom ntej los ntawm 1.62 lab CNY thiab tseem yuav ua rau kom rov ua tau qhov nyuaj ntxiv. Tsis tas li ntawd, qhov kev tshuaj ntsuam xyuas yog thaj chaw feem ntau muaj teeb meem tom qab cov cab kuj ntxiv. Peb-theem AO ntxiv ib ntu ntxiv ntawm cov ntxaij vab tshaus, ua rau muaj kev ua haujlwm nyuaj.
Los ntawm qhov kev sib piv saum toj no, vim yog qhov kev faib tawm ntau dhau hauv peb -theem AO, nrog rau txhua qhov kev faib tawm muaj qhov ntim zoo sib xws, nws qhov nyuaj rov qab yog siab dua li ntawm ob -theem AO. Kev tsim kho, kev ua haujlwm nyuaj, thiab qhov sib ntxiv ntawm cov cuab yeej tshuaj ntsuam kuj ua rau muaj kev nqis peev ntau dua li ob -theem AO. Yog li, kev siv ob -theem AO yog qhov muaj txiaj ntsig zoo rau yav tom ntej kev sib txuas nrog cov neeg nqa khoom raug tshem tawm.
2.3 Kev sib piv qhov tshwm sim
Raws li kev txheeb xyuas saum toj no, ob qho tib si -theem thiab peb-theem AO txheej txheem tuaj yeem ua tiav lub hom phiaj ntawm cov dej ntws tawm TN tsawg dua lossis sib npaug li 10 mg / L. Raws li kev ciam teb ntawm txoj haujlwm no- qhov chaw txwv, qhov yuav tsum tau ua kom ntau tshaj nyob ze - lub sij hawm tank ntim, thiab lub sij hawm ntev - lub sij hawm npaj ntxiv tshem tawm cov cab kuj - ob - theem AO muaj qhov zoo nyob rau hauv cov nqe lus ntawm ze - lub sij hawm peev thiab cov cuab yeej tswj / tu yooj yim. Nws kuj tseem muaj kev sib raug zoo dua rau yav tom ntej retrofit nrog cov neeg nqa khoom raug tshem tawm, uas ua rau qis dua kev nqis peev thiab txo qis retrofit thiab ua haujlwm nyuaj. Yog li, tom qab kev txiav txim siab dav dav, ob-theem AO txheej txheem tau pom zoo rau kev tsim qauv no.
3 Kev ua haujlwm zoo
Tag nrho cov peev txheej kwv yees rau qhov project no yog 304.5721 lab CNY, nrog rau kev tsim kho cov nqi ntawm 243.6019 lab CNY, txhais rau ib chav tsev nqi ntawm 3,480.03 CNY / m³. Tus nqi kho mob yog 1.95 CNY / m³, thiab tus nqi khiav haujlwm yog 1.20 CNY / m³.
Rau qhov project no, lub tank lom neeg muaj tag nrho HRT ntawm 18 teev (suav nrog: anaerobic zone 2 h, thawj-stage anoxic zone 3.5 h, thawj-stage aerobic zone 7.5 h, degas zone 0.5 h, second{-stage anoxic zone, thib ob-stage anoxic zone, thib ob 2 h), nrog rau qhov dej tob ntawm 8.6 m. Adjustable sectional intake yog siv, tso cai hloov nyob rau hauv lub influent faib piv nyob rau hauv 20% increments raws li xav tau. Hauv kev ua haujlwm tiag tiag, Mixed Liquor Suspended Solids (MLSS) concentration nyob rau hauv lub tank lom yog li ntawm 3,500 txog 4,000 mg / L, cov sludge rov qab piv li ntawm 40% mus rau 100%, thiab cov cawv sib xyaw nrog cov khoom siv rov ua dua li ntawm 100% txog 200%. Qhov tseeb influent thiab effluent zoo yog qhia nyob rau hauvTable 5, uas aligns yeej zoo ib yam nrog cov simulation tau.
4 Kev xaus
Siv WWTP nyob rau yav qab teb Suav teb raws li cov ntaub ntawv tshawb fawb, kev sib piv cov txuj ci thiab kev lag luam ntawm ob-theem thiab peb- theem AO cov txheej txheem tau ua nrog kev pab ntawm BioWin simulation. Ob -theem AO, nrog cov khoom siv tsawg dua thiab theem, cov khoom siv qis dua, thiab kev tswj xyuas kev ua haujlwm qis, yog qhov tsim nyog rau cov xwm txheej hauv Suav teb yav qab teb uas muaj zog TN tsis siab heev. Rau peb -theem AO, teeb tsa cov khoom siv rov ua dua tshiab los ntawm qhov kawg ntawm theem thib peb mus rau thawj thaj chaw anoxic cuam tshuam tsis zoo rau TN tshem tawm kev ua haujlwm, nce kev ua haujlwm nyuaj, thiab nce nqi peev. Tus qauv tsim ib txhij ua tau raws li qhov nyob ze -cov kev cai kho mob ntawm 50,000 m³ / d thiab TN Tsawg dua lossis sib npaug li 10 mg / L, thaum lub sijhawm ntev - lub sij hawm teev ntawm 70,000 m³ / d tuaj yeem ua tiav los ntawm kev sib txuas nrog cov cab kuj raug tshem tawm. Cov txiaj ntsig kev ua haujlwm tiag tiag yog qhov zoo sib xws nrog BioWin simulation cov txiaj ntsig, nrog qhov nruab nrab TN ntawm 6.86 mg / L, ua tau raws li cov qauv tsim.