Tsiv Bed Biofilm Reactor (MBBR): Cov cuab yeej siv no siv cov khoom siv talc raws li cov khoom siv biofilm, thiab siv cov dej ntws los ua kom cov khoom thauj khoom hauv cov dej hauv lub cev, thiab ua kom cov organic teeb meem ntawm cov dej phwj tuaj. Cov khoom siv MBBR muaj cov yam ntxwv ntawm kev hloov pauv zoo rau cov khoom siv thauj khoom thiab cov khoom siv ruaj khov, thiab tsim nyog rau kev kho cov dej khib nyiab, dej haus, dej khib nyiab, thiab lwm yam.
Fixed-Bed Biofilm Reactor (IFAS): Cov khoom siv no yog cov cuab yeej siv los ua ke biofilm thiab activated sludge txoj kev, thiab cov khoom siv feem ntau muaj xws li daim txhuam cev, kaolin, thiab lwm yam. IFAS cov cuab yeej muaj cov yam ntxwv ntawm kev hloov tau zoo rau cov dej phwj tuaj siab thiab kev kho kom ruaj khov. , thiab tsim nyog rau kev kho dej khib nyiab hauv cov chaw kho dej phwj thiab chaw ua si.