Fluidized Txaj muab tub so, tseem hu ua MBRB qhuav, yog hom tshiab ntawm cov cab kuj muaj zog. Nws muaj kev xav tau kev kawm txuj ci zoo, raws li cov khoom siv txawv dej sib txawv, fusing sib txawv ntawm cov microelements hauv kev loj hlob ntawm cov microorganism hauv cov ntawv txuas nrog. Tus qauv ntawm cov hollow rau ntawm tag nrho ntawm peb txheej ntawm cov voj voos hauv sab hauv thiab sab hauv, nrog tus tub ntxhais kawm tshwj xeeb, thiab tus muab tub lim rau hauv dej thaum lub sijhawm ua haujlwm ib txwm muaj. Cov kab mob anaerobic loj hlob hauv cov tub lim los tsim cov neeg muab khoom siv; Aerobic cov kab mob loj hlob sab nraud kom tshem tawm cov teeb meem organic, thiab muaj ob qho tib si ntawm nitrification thiab denitrification txheej txheem hauv cov txheej txheem kev kho mob tag nrho. Nrog rau qhov zoo ntawm thaj chaw loj, hydinphilic thiab kev xaiv zoo, yog qhov kev kho kom txaus siab, yog qhov kev tshem tawm ntev, yog phosphorus tshem tawm, dej pheeb huv, Cov dej rov qab siv, dej phwj dej deodorization cod, bod los tsa tus qauv.