Lub nroog thiab nyob deb nroogcov khoom siv kho dej phwj hauv tsevyog ib qho khoom siv khomob thiab muaj txiaj ntsig dej phwj tuaj, uas yog cov dej phwj tuaj kho nrog biofilm ua lub ntsiab purification lub cev.Nws siv tag nrho cov yam ntxwv ntawm biofilm reactors xws li anaerobic biofilters thiab hu rau oxidation txaj, xws li cov roj ntsha siab, muaj kuab paug tsis kam, tsis muaj zog noj, ruaj khov, thiab kev saib xyuas yooj yim, ua rau lub kaw lus muaj daim ntawv thov dav dav thiab kev nce qib.
Qhov concentration ntawm cov neeg nyob deb nroog tsis siab npaum li cov nroog, thiab kev siv cov dej phwj hauv tsev yog qis dua cov nroog.Cov peev nyiaj txiag nyob deb nroog tsis muaj zog, thiab cov neeg ua liaj ua teb cov nyiaj tau los tsawg.Yog li ntawd, nws yog ib qho tsim nyog los txhawb kom muaj ntau hom kev kho dej phwj hauv tsev uas muaj kev lag luam, yooj yim, siv tau, thiab ntau li ntau tau ua ke nrog kev ua liaj ua teb hauv zos kom ua tiav kev kho mob tsis zoo thiab kev siv cov dej phwj tuaj.
Kev tshem tawm cov kuab paug organic thiab ammonia nitrogen los ntawm nroog thiab nyob deb nroogcov khoom siv kho dej phwj hauv tsevFeem ntau yog nyob ntawm AO txheej txheem kev kho mob lom neeg hauv cov khoom siv.Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm A-theem tank yog vim muaj 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 microorganisms yog facultative microorganisms.Yog li ntawd, lub tank A-theem tsis tsuas yog muaj qee yam kev ua haujlwm ntawm kev tshem tawm cov organic teeb meem, txo cov organic load tom qab aerobic tank, thiab txo cov concentration ntawm cov organic teeb meem, tab sis tseem muaj qee yam ntawm cov organic teeb meem thiab siab NH3- N.Txhawm rau txuas ntxiv oxidize thiab decompose organics, thiab nitrification tuaj yeem ua tau zoo nyob rau hauv carbonization, aerobic biological contact oxidation tank nrog qis cov organic load yog teem rau theem O. Nyob rau hauv lub O-theem tank, feem ntau muaj cov kab mob aerobic microorganisms thiab autotrophic kab mob ( nitrifying kab mob).Aerobic microorganism decomposes organics rau hauv CO2 thiab H2O: autotrophic kab mob (nitrifying bacteria) siv inorganic carbon generated los ntawm organic decomposition los yog CO2 nyob rau hauv cov huab cua raws li cov as-ham los hloov NH3-N hauv dej phwj rau NO-2-N, NO-3-N. , thiab cov effluent feem ntawm O theem pas dej ua ke rov qab mus rau A theem pas dej ua ke los muab hluav taws xob txais rau A theem pas dej ua ke, thiab thaum kawg tshem tawm cov pa phem nitrogen los ntawm denitrification.
Post lub sij hawm: May-20-2023