Fluidized bed filler, eo hape e tsejoang e le MBBR filler, ke mofuta o mocha oa sejari sa bioactive. E amohela mokhoa oa mahlale, ho latela litlhoko tse fapaneng tsa boleng ba metsi, e kopanya mefuta e fapaneng ea li-microelements ka har'a lisebelisoa tsa polymer tse thusang kholong e potlakileng ea likokoana-hloko ho khomarela. Sebopeho sa sekoti se nang le sekoti ke kakaretso ea likarolo tse tharo tsa selikalikoe se sekoti ka hare le ka ntle, selikalikoe se seng le se seng se na le prong e le 'ngoe ka hare le li-prong tse 36 ka ntle, tse nang le mohaho o khethehileng,' me filler e emisoa ka metsing nakong ea ts'ebetso e tloaelehileng. The anaerobic baktheria e hōla ka hare ho filler ho hlahisa denitrification; baktheria ea aerobic e hola ka ntle ho tlosa lintho tse phelang, 'me ho na le ts'ebetso ea nitrification le denitrification ts'ebetsong eohle ea kalafo. Ka melemo ea sebaka se seholo se ikhethileng, hydrophilic le kamano e ntle ka ho fetisisa, ts'ebetso e phahameng ea tlhaho, filimi e leketlileng ka potlako, phello e ntle ea kalafo, bophelo bo bolelele ba ts'ebeletso, joalo-joalo, ke khetho e ntle ka ho fetisisa ea ho tlosa ammonia nitrogen, decarbonization le phosphorous ho tlosoa, tlhoekiso ea likhoerekhoere, tšebeliso ea metsi hape, likhoerekhoere deodorization COD, BOD ho phahamisa maemo.