Nrog rau kev txhim kho ntawm kev lag luam nyob deb nroog thiab kev nce ntxiv ntawm cov pej xeem, kev tso tawm cov dej phwj hauv tsev nyob deb nroog kuj nce ntxiv. Txhawm rau tiv thaiv ib puag ncig nyob deb nroog thiab kev noj qab haus huv ntawm tib neeg, yuav tsum tau tsim ntau qhov chaw kho dej phwj los kho cov dej phwj hauv tsev nyob deb nroog. Cov khoom siv sib xyaw ua ke ntawm lub chaw kho dej phwj hauv nroog tau tshwm sim thaum lub sijhawm keeb kwm, kom nkag siab tias nws cov txheej txheem ua haujlwm li cas, niaj hnub no.
Cov khoom siv sib xyaw ua ke ntawm lub chaw kho dej phwj hauv nroog feem ntau siv cov txheej txheem kho mob AO los tshem tawm cov pa phem organic thiab ammonia nitrogen. Nws txoj cai ua haujlwm yog nyob rau hauv chav kawm A, vim tias muaj cov organic ntau hauv cov dej phwj, cov kab mob me me nyob rau hauv lub xeev hypoxia, lub sijhawm no, cov kab mob me me yog cov kab mob facultative, lawv yuav decompose cov organic nitrogen hauv cov dej phwj mus rau hauv NH₂-N, thaum siv cov organic carbon ua tus pub electron, NO₂-N, NO₂-N raug hloov mus rau N₂ Thiab siv qee cov organic carbon thiab NH₂-N rau kev tsim cov khoom siv cellular tshiab.
Yog li ntawd, chav kawm A pas dej ntawm cov khoom siv kho dej phwj tuaj yeem tsis tsuas yog muaj qee yam kev tshem tawm cov organic, txo cov khoom siv organic ntawm lub tank aerobic tom qab, uas yog qhov zoo rau nitrification, tab sis kuj cia siab rau qhov siab ntawm cov organic teeb meem uas muaj nyob hauv dej nyoos kom ua tiav denitrification, thiab thaum kawg tshem tawm cov pa phem nitrogen eutrophic.
Hauv chav kawm O, vim tias qhov concentration ntawm cov organic teeb meem tau raug txo qis heev, tab sis cov khoom siv kho dej phwj tuaj yeem tseem muaj qee qhov ntawm cov organic teeb meem thiab muaj NH₂-N₂ siab. Yuav kom ua rau cov organic decomposition ntxiv, thiab thaum ua tiav carbonization, lub zog nitrification mus zoo, lub tank aerobic biological contact oxidation nrog cov organic load tsawg tau teeb tsa ntawm O₂ qib.
Cov kab mob me me uas nyob hauv huab cua (Aerobic microorganisms) thiab cov kab mob uas muaj cov pa oxygen ntau tshaj plaws nyob hauv chav kawm O-pool ntawm cov khoom siv kho dej phwj tuaj. Cov kab mob me me uas nyob hauv huab cua puas yuav rhuav tshem cov organic matter mus ua CO2? Thiab H2O2, Inorganic carbon lossis CO2 hauv huab cua? Ua ib qho chaw muab khoom noj, cov NO2 hauv cov dej phwj?-N, NO2?-N puas yuav hloov mus ua N2?. Cov dej khib nyiab ntawm cov dej O2 ntws mus rau cov dej A, muab lub tshuab txais hluav taws xob rau cov dej A, thiab thaum kawg tshem tawm cov pa phem nitrogen los ntawm kev denitrification.
Cov khoom siv sib xyaw ua ke ntawm cov chaw kho dej phwj hauv nroog hauv ntau thaj chaw yuav tsum xaiv cov thev naus laus zis kho dej phwj raws li qhov xwm txheej tshwj xeeb ntawm thaj chaw nyob deb nroog, thiab tseem yuav tsum xav txog qhov ua tau, kev lag luam thiab kev cuam tshuam rau ib puag ncig ntawm cov thev naus laus zis. Jiading kev tiv thaiv ib puag ncig kev tiv thaiv cov khoom siv kho dej phwj tuaj yeem ua tau raws li qhov xav tau ntawm 0.3-ua ke 10,000 tons ntawm kev kho dej phwj, thiab 9 series ntawm cov khoom tuaj yeem xaiv tau dawb, raws li cov xwm txheej sib txawv.
Lub sijhawm tshaj tawm: Lub Peb Hlis-19-2024