Los ntawm cov ntaub ntawv muag khoom tsis ntev los no, tus naj npawb ntawm cov xaj tau txais los ntawm Liding Environmental Protection rau cov khoom siv txheej txheem AAO tseem siab. Dab tsi ua rau cov neeg siv khoom ntseeg cov txheej txheem no ntau dua? Tom ntej no, Liding Environmental Protection yuav qhia txog lub ntsiab lus ntawm cov txheej txheem AAO.
Lub hauv paus ntawm cov txheej txheem AAO yog siv cov nitrification thiab denitrification ntawm cov kab mob nyob rau hauv ntau yam mob kom ua tiav kev tshem tawm nitrogen, thiab siv cov kab mob phosphorus-accumulating los tshem tawm phosphorus. Yog li ntawd, cov txheej txheem no zoo dua rau cov haujlwm nrog kev tswj hwm nruj ntawm cov pa phem nitrogen thiab phosphorus. Cov haujlwm tseem ceeb ntawm cov khoom siv kho dej phwj hauv tsev nyob deb nroog ntawm cov txheej txheem AAO yog concentrated hauv peb lub modules tshuaj tiv thaiv, uas yog anaerobic pas dej, anoxic pas dej thiab aerobic pas dej.
Hauv thaj chaw anaerobic reaction, vim tsis muaj nitrate thiab oxygen hauv cov dej phwj ntawmcov khoom siv kho dej phwj hauv tsev nyob deb nroog, cov kab mob phosphorus accumulating khaws lub zog hauv cov phosphorus-accumulating compounds thiab tso tawm cov phosphate radicals tib lub sijhawm, thaum lwm cov kab mob feem ntau tsis ua haujlwm. Hauv qhov module tshuaj tiv thaiv no Lwm cov kab mob tsis tshua muaj zog thiab nyuaj rau loj hlob. Lub anaerobic reaction module siv los txo COD thiab npaj rau kev tshem tawm phosphorus.
Hauv cov tshuaj tiv thaiv anoxic, cov dej phwj tuaj ntawm cov khoom siv kho dej phwj hauv tsev nyob deb nroog muaj qee qhov nitrate tsis muaj oxygen, thiab cov kab mob denitrifying siv COD los txo nitrate rau nitrogen, tso alkali, thiab tau txais lub zog rau kev loj hlob. Txo COD thiab nitrate nitrogen.
Lub tshuab ua haujlwm aerobic yog qhov chaw tseem ceeb ntawm cov khoom siv kho dej phwj hauv nroog. Ntawm no, cov kab mob nitrifying oxidize ammonia nitrogen rau nitrate nitrogen, noj alkalinity thiab oxygen, PAOs nqus tau ntau phosphorus, siv lub zog hauv PHAs los tsim polyphosphorus, thiab OHOs txuas ntxiv tshem tawm COD, PAOs, OHOs, thiab cov kab mob nitrifying tag nrho loj hlob hauv cov txheej txheem no. Txo COD, ammonia nitrogen thiab phosphorus.
Los ntawm kev tshuaj xyuas qhov kev thov ntawm cov neeg nyob deb nroogkev kho dej phwj hauv tsevcov haujlwm, kev xaiv cov txheej txheem kho dej phwj tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm qhov ntsuas kev kho, cov yam ntxwv ntawm dej phwj tuaj, cov dej ntws zoo thiab cov dej tawm hauv lub cev. Tib lub sijhawm, cov txheej txheem kho kom haum yuav tsum tau xaiv raws li cov yam ntxwv ntawm cov dej phwj hauv zos. Ntau qhov xwm txheej qhia tau tias AAO cov khoom siv kho dej phwj tuaj hauv nroog muaj kev hloov pauv zoo rau ntau hom haujlwm.
Lub sijhawm tshaj tawm: Lub Xya Hli-06-2023