1. Kev cuam tshuam ntawm kev thauj khoom qis
(1) Kev noj zaub mov tsis txaus microbial
Cov organic substrate tsis txaus txhais tau hais tias cov kab mob heterotrophic tsis tuaj yeem tau txais "khoom noj," uas ua rau txo qis kev ua haujlwm. Qee cov kab mob yuav nkag mus rau theem ua pa endogenous, siv lawv tus kheej cov teeb meem ntawm tes ua lub zog.
(2) Kev hloov pauv hauv Sludge Floc yam ntxwv
Nyob rau hauv qis loading, cov qauv floc nyhav kom tuab thiab muaj cov khoom zoo. Txawm li cas los xij, yog tias qhov load tsawg dhau, kev ua sludge txo qis, ua rau muaj kev laus ntau dhau. Qhov feem ntawm cov kab mob filamentous nyob rau hauv activated sludge yuav nce, ua rau muaj teeb meem bulking.
(3) Kev cuam tshuam rau cov dej ntws zoo
Kev tshem tawm ntawm BOD5 thiab CODcr feem ntau yog qhov zoo vim tias cov organic teeb meem concentration tsawg thiab lub sijhawm khaws cia ntev. Txawm li cas los xij, kev tshem tawm cov txiaj ntsig ntawm nitrogen thiab phosphorus tuaj yeem raug txwv. Qhov no feem ntau yog vim tias denitrification yuav tsum muaj cov pa roj carbon monoxide, thiab kev thauj khoom qis feem ntau txhais tau tias tsis muaj cov pa roj carbon monoxide txaus, cuam tshuam rau denitrification thiab phosphorus tshem tawm.
(4) Kev lag luam kev lag luam
Kev siv cov pa oxygen ntawm lub tank aeration txo qis, thiab kev siv hluav taws xob yog qhov siab ("cog kab mob tab sis tsis yog dej"). 2.
2. Qhov cuam tshuam ntawm Sludge Hnub nyoog
(1) Microbial Community Succession
Ntev SRT → Tsawg F / M Ratio → Weakened Microbial Metabolism, nkag mus rau Endogenous Respiration, thiab Txo cov kab mob Heterotrophic. Txawm hais tias qhov no muaj txiaj ntsig zoo rau kev loj hlob qeeb -cov kab mob nitrifying loj hlob (AOB, NOB) thiab cov kab mob filamentous, ntau dhau SRT ua rau txo qis microbial ntau haiv neeg thiab sludge aging.
(2) Cov nyhuv kho
Kev tshem tawm cov teeb meem organic tseem muaj txiaj ntsig zoo, thiab kev tshem tawm ammonia nitrogen tau txhim kho (vim cov kab mob nitrifying xav tau ntev SRT los tswj lawv txoj haujlwm). Txawm li cas los xij, kev tshem tawm denitrification thiab phosphorus raug txwv, feem ntau yog vim tsis muaj cov pa roj carbon monoxide thiab cov khoom siv hluav taws xob hauv lub cev.
(3) Sludge yam ntxwv thiab cov teeb meem kev ua haujlwm
Cov laus sludge → Tsis tshua muaj kev ua haujlwm sab hauv thiab ua pa qis. Nws yog nquag mus foaming, filamentous bulking, los yog sludge disintegration, uas ua rau deteriorated settling kev ua tau zoo. Sludge concentration tej zaum yuav siab dhau lawm, nce aeration load thiab zog noj.
(4) Tshaj sludge thiab siv zog
Kev tsim cov sludge ntau dhau poob qis, tab sis vim qhov tsis tshua muaj oxidation efficiency ib chav tsev ntawm cov organic teeb meem, lub zog aeration tau nce kuj.