Anoxic ntu (Tshooj A)
Lub ntsiab ua haujlwm tseem ceeb: Hauv seem A, qhov kev xav tau ua) yog qhov ua tau nruj me ntsis, feem ntau tsis dhau}. 2 mg \/ u, los tsim cov pa oxygen-tsis txaus. Nyob rau hauv xws li ib puag ncig, Heterotrotrophic cov kab mob dhau los ua cov tshuaj yeeb dej caw, xws li, hloov cov roj av thiab cov pab pawg amino hauv nh {3}} n. Cov kauj ruam no yog qhov tseem ceeb rau cov txheej txheem kho mob tom ntej.
Cov txheej txheem hydrolysis: Ntxiv rau kev hloov kho, herotribrophic tsis muaj teeb meem rau hauv cov organic cov teeb meem, thiab hloov cov organic cov teeb meem me me rau hauv cov organic muaj teeb meem. Cov txheej txheem no tau txhim kho lub biodegradity ntawm cov dej phwj tuaj thiab tsim cov kev ua kom muaj peev xwm rau kev kho raws li kev siv roj ntsha.
Ntu Aerobic (Ntu O)
Lub ntsiab ua haujlwm tseem ceeb: hauv Ntu O, theem yog tswj hwm ntawm 2 txog 4 mg \/ u kom ntseeg tau cov pa oxygen. Ntawm no, nitrifify bacteria txuas ntxiv oxidize lub nh}}}}}} (los yog paub txog kev hloov siab ntawm ammonia nitrogen. Kauj ruam no yog qhov tseem ceeb tshaj plaws rau kev tshem cov nitrogen los ntawm dej phwj tuaj.
Phosphorus tshem tawm kev ua haujlwm: Ntxiv rau nitrification, aerobic seem tseem muaj txoj haujlwm phosphorus tshem tawm. Nyob rau hauv aerobic tej yam kev mob, polycosphate cov kab mob nqus tau ntau qhov kev sib xyaw ntawm cov cawv sib xyaw rau hauv sludge. Txij li thaum cov kab mob polyphosphate nqus tau ntau yam kev tshem tawm yog thaum kawg ntawm kev ua haujlwm ntawm cov dej phos hauv lub "Aberobic" ib puag ncig thiab lub sludge sib cais ntawm lub tsev pheeb suab theem nrab.
Sab hauv Refrow thiab Denitricification
Sab hauv reflow tswj: Txhawm rau kom ua tiav cov nitrogen ua tiav, cov khoom lag luam Nitrogen tau tsim nyob rau hauv ntu ib leeg los ntawm kev tswj hwm sab hauv. Nyob rau hauv anoxic ib puag ncig ntawm ntu A, Cov kab mob tsis lees paub pib ua lub luag haujlwm. Lawv siv cov organic nyob hauv cov khoom noj hluav taws xob kom txo cov khoom nitrogen rau molecular nitrogen (N2), yog li ua tiav lub voj voog ntawm C, N, thiab o hauv cov kab ke tsiaj txhu.
Tswj lub tswv yim ntawm Ao Dej phwj kho system
1. MLSS tswj:
a. Tseem Ceeb: Hauv Ao Dej Haus Kev Kho Mob, nws yog qhov tseem ceeb heev kom cov cawv sib xyaw (MLSS) saum toj? Kev loj ntawm MLSS tuaj yeem muab cov biomass txaus los koom nrog hauv cov txheej txheem denitrification thiab txhim kho kev ua haujlwm tau zoo.
b. Txoj kev tswj hwm: Txhawm rau kom ua tiav kev tswj kom zoo MLSS, cov qauv hloov kho qhov chaw seem yog feem ntau saws. Los ntawm qhov tseeb xam rov qab thiab kho cov sludge tso tawm, MLSS cov kev xav tau khaws cia kom tau raws li cov kab ke kev kho mob.
2. Ammonia nitrogen load load cia:
a. Lub Hom Phiaj: Hauv cov txheej txheem nitrification cov kev tiv thaiv, kev tswj hwm ntawm ammonia nitrogen load yog tus yuam sij los xyuas kom cov kab mob nitrifulation. Feem ntau, ammonia nitrogen load yog tswj hauv qab 0. D) kom ua tiav cov nyhuv zoo tshaj plaws.
3. Sludge thauj khoom zoo:
a. Txoj Kev: Sludge thauj khoom yog ib qho tseem ceeb cuam tshuam rau kev ua si ntawm nitrify cov kab mob. Txhawm rau kom txo cov sludge load, tus txheej txheem ntawm kev nce MLSS siab lossis nthuav dav lub roj tanker cob muaj peev xwm tau los. Los ntawm kev ua kom zoo dua cov sludge load, ib qho kev nyiam siab nyob ib puag ncig yog tsim rau nitrify bacteria, yog li kev txhim kho lawv cov kev kho mob.
4. Sludge hnub nyoog hloov kho:
a. Qhov tseem ceeb: Tus nqi ntawm nitrifying ntawm neeb kom qeeb, yog li ntawd nws yog ib qho tsim nyog los xyuas kom meej tias lub hnub nyoog loj dua 4.76 hnub los tswj kev ruaj khov thiab kev ua ntawm nitrify bacteria. Qhov no pab tswj cov nyhuv kho mob thiab zam qhov poob rau kev kho mob tshwm sim los ntawm kev poob qis hnub nyoog.
b. Kev tswj txoj kev: Txhawm rau kom ua tiav kev tswj kom zoo ntawm sludge hnub nyoog, nws tuaj yeem ua tiav los ntawm kev kho cov sludge kom ntim. Los ntawm qhov tseeb xam rov qab thiab kho cov sludge tshem tawm ntim, lub caij nplooj ntoo poob qis nyob rau hauv cov kev xav tau ntawm cov kab ke.
5. Sab hauv Reavow Kho:
a. Kev cuam tshuam: qhov loj ntawm cov kev xav tsis thoob muaj kev cuam tshuam ncaj qha rau cov nyhuv denitrification effection. Qhov loj dhau los yog dhau ntawm sab hauv reflow yuav ua rau ib qho kev txo qis hauv qhov cuam tshuam tsis zoo. Yog li ntawd, nws yog ib qho tsim nyog los hloov kho cov sab hauv refow piv.
b. Kev tswj txoj kev: Raws li qhov teeb meem tiag tiag, qhov tsis txaus ntseeg tau ua kom zoo dua los ntawm kev kho kom haum rau sab hauv reflow piv. Los ntawm qhov tseeb xam rov qab thiab hloov kho sab hauv reagio, lub kaw lus tuaj yeem ua tiav qhov zoo tshaj plaws denitrication nyhuv.
6. C \/ N Piv Txwv:
a. Lub Hom Phiaj: Txhawm rau kom cov kev nce qib du ntawm cov kab mob, C \/ N Qhov no yuav tsum tau tswj hwm qhov twg muaj cov pa roj teeb txaus, yog li kev txhim kho cov khoom siv tau txaus.
7. Lwm qhov ntsuas hluav taws xob:
PH TSEG: Tus nqi PHO tias ntau qhov dej phwj tuaj yeem tiv thaiv tau tuaj yeem tiv thaiv tau yog 6-9. Tshaj li no, cov kev cai tswj tshuaj siv tshuaj yuav tsum tau ntxiv kom paub meej tias cov nyhuv kev kho mob tsis cuam tshuam dab tsi.
Kev tuav haujlwm hydraulic (HRT): Nws yuav tsum ua kom tau raws li cov kev cai ua ke. Cov sijhawm ua haujlwm luv luv rau cov sijhawm ua tsis tiav thiab muaj kev kho tsis muaj zog; Ntev dhau hydraulic hydraulic lub sij hawm yuav ua rau lub cev sludge kev laus thiab cuam tshuam cov kev kho mob.
8. DUAB AXYGENT (ua): Cov ntsiab lus yaj \/ l hauv thaj chaw Aerobic tuaj yeem ua tau raws li cov haujlwm ntawm cov kws qhia ntawv lossis aerobic microbial; Qhov tsis muaj pa oxygen cov ntsiab lus hauv cheeb tsam anoxic yog}}}}}}. 5mg \/ u kom tau raws li cov tshuaj tiv thaiv ntawm cov kab mob tsis kam lees. Los ntawm kev tswj cov pa oxygen, cov nyhuv kho mob tuaj yeem ua kom zoo dua qub.
Nitrricification kua rov qab taw tes
Nitrricification kua rov qab yog ib qho ntawm cov txuas tseem ceeb hauv Ao system. Nws feem ntau pib los ntawm qhov kawg ntawm aerobic tank, dhau los ntawm cov kav dej thiab khoom siv tshwj xeeb, thiab rov qab mus rau hauv dej inlet ntawm anoxic tank. Cov qauv no yog kom ntseeg tau tias muaj txaus nitrate hauv lub anoxic tank rau kev tsis pom zoo cov tshuaj tiv thaiv, muaj kev phom sij nitrogen nyob rau hauv effluent.
Kev xaiv ntawm qhov taw tes ntawm nitrificification kua xa rov qab xav tau mus rau hauv tus account ntau yam, xws li lub system ua muaj peev xwm, cov nqi ua haujlwm zoo, thiab cov nqi khiav haujlwm. Los ntawm kev tswj cov dej ntws kom raug thiab ntws ntawm Nitricification kua xa rov qab, cov haujlwm ua haujlwm ntawm cov txheej txheem tuaj yeem tsim kho tau ntxiv thiab cov dej ua haujlwm effluent zoo tuaj yeem txhim kho.
Slude rov qab taw tes
Sludge rov qab yog lwm qhov tseem ceeb rov qab txuas rau hauv Ao system. Nws feem ntau rov qab los sludge nyob rau hauv theem nrab detimentation tank rau cov dej inlet ntawm cov khoom siv anoxic los ntawm sludge rov qab tso kua mis. Cov qauv no yog txhawm rau tswj cov sludge concentration thiab microbial kev ua si hauv lub system, yog li kom ntseeg tau tias lub kaw lus tuaj yeem ua haujlwm ntawm cov dej paug.