Fluidized bed filler, yomwe imadziwikanso kuti MBBR filler, ndi mtundu watsopano wa chonyamulira cha bioactive. Imatengera njira yasayansi, malinga ndi zosowa zosiyanasiyana zamadzi, kuphatikiza mitundu yosiyanasiyana ya ma microelements muzinthu za polima zomwe zimathandizira kukula mwachangu kwa tizilombo toyambitsa matenda. Mapangidwe a hollow filler ndi magawo atatu a mabwalo opanda dzenje mkati ndi kunja, bwalo lililonse limakhala ndi prong imodzi mkati ndi ma prong 36 kunja, ndi mawonekedwe apadera, ndipo chodzazacho chimayimitsidwa m'madzi pakugwira ntchito bwino. Mabakiteriya a anaerobic amakula mkati mwa filler kuti apange denitrification; mabakiteriya a aerobic amakula panja kuti achotse zinthu zachilengedwe, ndipo pali njira zonse za nitrification ndi denitrification munthawi yonse ya chithandizo. Ndi ubwino wa malo akuluakulu enieni, hydrophilic ndi kuyanjana kwambiri, zochitika zambiri zamoyo, filimu yolendewera mofulumira, zotsatira zabwino zothandizira, moyo wautali wautumiki, ndi zina zotero, ndiye chisankho chabwino kwambiri chochotsera ammonia nitrogen, decarbonization ndi phosphorous kuchotsa, kuyeretsa zimbudzi, kugwiritsanso ntchito madzi, kuwononga zimbudzi COD, BOD kukweza muyezo.