1. Lub hauv paus ntsiab lus ntawm kev ua ntawm anaerobic biological lim
1) Lim: cov muab tub lim cuam tshuam thiab lim cov khoom loj thiab tshem tawm cov khib nyiab hauv cov dej nkag;
2) Hydrolysis: anaerobic microorganisms tuaj yeem hydrolyze insoluble tshuaj ntawm macromolecules rau hauv cov tshuaj soluble ntawm me me molecules;
3) Absorption: anaerobic microorganisms adsorb thiab nqus cov pa phem hauv dej, ib feem ntawm cov khoom siv rau lawv tus kheej kev loj hlob thiab kev loj hlob, thiab ib feem ntawm cov uas raug kaw los ntawm U-shaped dej hauv daim ntawv ntawm biogas;
4) Denitrification: Cov dej ntws tawm ntawm lub txaj oxidation rov qab mus rau lub lim dej anaerobic, thiab cov kab mob denitrifying hauv cov kab mob anaerobic tuaj yeem siv cov nitrate nitrogen hauv cov dej reflux thiab hloov mus rau nitrogen kom tshem tawm cov nitrogen hauv cov kav dej. Tom qab kev kho cov dej phwj nyob deb nroog los ntawm cov lim dej anaerobic, qhov concentration ntawm cov khoom raug tshem tawm, cov pa phem thiab nitrogen raug txo, thiab cov khoom tom qab ntawm kev sib cuag oxidation txaj kuj txo.
2. Lub hauv paus ntsiab lus ntawm kev ua ntawm kev sib cuag oxidation txaj
1) Adsorption: aerobic microorganisms tsim biofilms nrog thaj chaw loj thiab siab concentration thaum lub sij hawm kev loj hlob thiab kev tsim tawm ntawm cov muab tub lim, uas tuaj yeem adsorb feem ntau ntawm cov organic paug hauv dej hauv qhov ntau thiab txo cov pa phem;
2) Kev noj thiab decomposition: Nyob rau hauv cov ntaub ntawv ntawm tas mus li huab cua ntws mus rau lub reactor, aerobic microorganisms yuav coj cov adsorbed organic kuab paug rau hauv lub cev raws li cov as-ham thiab metabolize lawv, ib feem ntawm uas yog siv rau lawv tus kheej kev loj hlob thiab kev yug me nyuam, thiab ib feem ntawm uas. yog hloov mus rau carbon dioxide thiab dej. Qhov raug rau lub txaj hydrogenated ntxiv txo qhov concentration ntawm cov pa phem hauv cov dej phwj tuaj nyob deb nroog, thiab qhov kev tshem tawm ntawm CODcr thiab BOD5 hauv cov dej ntws mus txog ntau dua 80%, uas tuaj yeem ua tau raws li lub teb chaws thib ob tus qauv rau cov dej phwj tuaj.