Nrog rau txoj kev loj hlob ntawm kev lag luam nyob deb nroog thiab kev loj hlob ntawm cov pej xeem, kev tso tawm ntawm cov dej phwj tuaj nyob deb nroog kuj nce ntxiv. Txhawm rau tiv thaiv ib puag ncig nyob deb nroog thiab tib neeg txoj kev noj qab haus huv, yuav tsum tsim cov chaw kho dej ntau dua los kho cov dej phwj hauv nroog. Lub nroog cov dej phwj tuaj koom ua ke cov khoom siv tau tshwm sim ntawm lub sijhawm keeb kwm, tias nws cov txheej txheem ua haujlwm raws nraim li cas, niaj hnub no kom nkag siab.
Cov khoom siv sib xyaw ua ke ntawm cov chaw kho dej hauv nroog feem ntau yog siv cov txheej txheem kho AO lom kom tshem tawm cov pa phem thiab ammonia nitrogen. Nws lub hauv paus ntsiab lus ua haujlwm yog nyob rau hauv chav kawm A, vim tias qhov siab ntawm cov organic teeb meem hauv cov dej phwj tuaj, cov kab mob nyob hauv lub xeev ntawm hypoxia, lub sijhawm no, cov kab mob yog cov kab mob facultative, lawv yuav decompose cov organic nitrogen hauv dej phwj rau hauv NH?-N, Thaum siv cov organic carbon los ua ib qho khoom siv hluav taws xob, NO?-N,NO?-N hloov mus rau N? Thiab siv qee qhov ntawm cov organic carbon thiab NH?-N rau kev sib txuas ntawm cov khoom siv cellular tshiab.
Yog li ntawd, chav kawm A pas dej ua ke ntawm cov khoom siv dej phwj tuaj koom ua ke tsis yog tsuas yog muaj qee yam kev tshem tawm cov organic, txo cov organic thauj khoom ntawm lub tank aerobic tom ntej, uas yog qhov zoo rau nitrification, tab sis kuj vam khom siab ntawm cov organic teeb meem uas twb muaj lawm hauv lub tank. dej nyoos kom tiav denitrification, thiab thaum kawg tshem tawm cov pa nitrogen eutrophic.
Nyob rau hauv chav kawm O, vim hais tias qhov concentration ntawm cov organic teeb meem tau txo qis heev, tab sis cov khoom siv dej phwj tuaj ua ke tseem muaj qee yam ntawm cov organic teeb meem thiab siab NH?-N muaj nyob. Txhawm rau ua kom oxidation decomposition ntxiv ntawm cov organic teeb meem, thiab nyob rau hauv kev ua tiav ntawm carbonization, lub zog nitrification ua tau zoo, lub aerobic lom hu ua oxidation tank nrog tsawg cov organic load yog teem rau ntawm O theem.
Cov kab mob aerobic thiab cov kab mob tus kheej-oxygenic feem ntau muaj nyob rau hauv chav kawm O-pool ntawm cov khoom siv kho dej phwj sib xyaw. Puas yog aerobic microorganisms decompose organic teeb meem rau hauv CO? Thiab H? O, Inorganic carbon lossis CO hauv huab cua? Raws li cov khoom noj khoom haus, puas yuav tsis muaj nyob hauv cov dej phwj tuaj?-N, TSIS MUAJ?-N tig mus rau N?. Cov dej ntws ntawm O pas dej ntws mus rau lub pas dej A, muab cov khoom siv hluav taws xob rau lub pas dej A, thiab thaum kawg tshem tawm cov pa phem nitrogen los ntawm denitrification.
Cov khoom siv sib xyaw ua ke ntawm cov chaw kho dej hauv nroog hauv cov cheeb tsam sib txawv yuav tsum xaiv cov tshuab lim dej kom haum raws li cov xwm txheej tshwj xeeb ntawm cov chaw nyob deb nroog, thiab tseem yuav tsum xav txog qhov ua tau, kev lag luam thiab ib puag ncig cuam tshuam ntawm kev siv tshuab. Jiading ib puag ncig kev tiv thaiv cov khoom siv dej phwj tuaj yeem ua tau raws li qhov xav tau ntawm 0.3-ua ke 10,000 tons ntawm cov dej phwj tuaj kho, thiab 9 series ntawm cov khoom tuaj yeem xaiv tau dawb, raws li cov xwm txheej sib txawv.
Post lub sij hawm: Mar-19-2024