Simultaneous nitrification thiab denitrification technology (SND)yog lub simultaneous zus tau tej cov nitrification, denitrification thiab carbon tshem tawm cov tshuaj tiv thaiv nyob rau hauv tib lub reactor. Nws tawg los ntawm kev pom ib txwm muaj tias nitrification thiab denitrification tsis tuaj yeem tshwm sim tib lub sijhawm, tshwj xeeb hauv qabaerobic tej yam kev mob, denitrification kuj tuaj yeem tshwm sim, ua rau tib lub sijhawm nitrification thiab denitrification ua tau.
MBBR yog ib qho kev ua haujlwm siab tshiab reactor sib txuas covactivated sludge txoj kevnrog ncua kev loj hlob thiab covbiofilm txoj kevnrog rau kev loj hlob. Lub hauv paus ntsiab lus tsim qauv yog ncaj qha ntxiv mbbr lim uas nws lub ntiajteb txawj nqus tshwj xeeb yog ze rau dej thiab tuaj yeem raug tshem tawm hauv dej rau hauv cov tshuaj tiv thaiv tank raws li kev ua haujlwm ntawm cov kab mob. Cov neeg nqa khoom, mbbr reactor tuaj yeem nyob hauv kev sib cuag nrog cov dej phwj tuaj ntau zaus, thiab biofilms (cov yeeb yaj kiab) maj mam loj hlob ntawm qhov chaw ntawm biomedia, uas ntxiv dag zog rau kev hloov pauv loj ntawm cov pa phem, yaj oxygen thiab biofilms. MBBR hu ua "cov kab mob mobile" membrane".
Raws li kev tshawb fawb ntawm SND mechanism kom deb li deb, kev nthuav dav microenvironment thiab biological theories, qhov ua tau tshwm sim ntawm SND hauv MBBR biofilm yog aerobic ammonia oxidizing kab mob, nitrite oxidizing kab mob thiab aerobic denitrification faib nyob rau hauv aerobic txheej ntawm biofilm kab mob thiab anaerobic ammonia. kab mob, kab mob autotrophic nitrite thiab cov kab mob denitrifying faib nyob rau hauv cov txheej txheem lom anoxic koom tes nrog ib leeg kom thaum kawg ua tiav lub hom phiaj ntawmdenitrification.
Bio mbbr cia siab rau covaerationnyob rau hauv lub aeration tank thiab lifting nyhuv ntawm lubdej ntwsua tus cab kuj nyob rau hauv afluidized xeev, thiab tom qab ntawd daim ntawv tshem tawm cov sludge thiab txuas nrog kev loj hlob biofilm, muab kev ua si tag nrho rau qhov zoo ntawm ob qho tib sitxuas theem thiab suspended theem kab mob. Nws tsis tsuas yog muab ib qho macroscopic thiab microscopicaerobic thiab anaerobic ib puag ncig, tab sis kuj daws covUA kev tsis sib haum xeeb thiab kev tsis sib haum xeeb ntawm cov pa roj carbonnruab nrab ntawm cov kab mob autotrophic nitrifying, heterotrophic denitrifying kab mob thiab cov kab mob heterotrophic.
Yog li ntawd, Mbbr System tuaj yeem paub qhov sib npaug ntawm ob txoj haujlwm ntawm nitrification thiab denitrification, muaj cov xwm txheej zoo heev rau kev sib xyaw nitrification thiab denitrification, thiab tuaj yeem paub txog nitrification thiab denitrification ntawm MBBR ib txhij.
Yog tias koj muaj kev txaus siab, thov hu rau Doris
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