Buuxiyaha sariirta dareeraha leh, oo sidoo kale loo yaqaan buuxinta MBBR, waa nooc cusub oo side noole ah. Waxay qabataa qaacido saynis ah, iyadoo loo eegayo baahiyaha tayada biyaha ee kala duwan, iyada oo ku daraysa noocyada kala duwan ee microelements ee alaabta polymer kuwaas oo u sahlaya korriinka degdega ah ee noolaha Qaab dhismeedka buuxinta godan waa wadar ahaan saddex lakab oo wareegyo godan oo gudaha iyo dibadda ah, goobaabin kastaa waxay leedahay hal cidhif oo gudaha ah iyo 36 gees oo bannaanka ah, oo leh qaab dhismeed gaar ah, buuxinta waxa lagu hakiyaa biyaha inta lagu jiro hawlgalka caadiga ah. Bakteeriyada anaerobic waxay ku koraan gudaha buuxinta si ay u soo saarto denitrification; Bakteeriyada aerobic waxay ka baxdaa dibadda si ay uga saarto walxaha dabiiciga ah, waxaana jira nitrification iyo habka denitrification labadaba habka daaweynta oo dhan. Iyada oo faa'iidooyinka dusha sare ee ballaaran oo gaar ah, hydrophilic iyo affinity ugu fiican, dhaqdhaqaaqa bayooloji sare, filim si degdeg ah u laadlaadsan, saameyn daawaynta wanaagsan, nolosha adeegga dheer, iwm, waa doorashada ugu fiican ee ka saarida nitrogen ammonia, decarbonization iyo fosfooraska ka saarista, nadiifinta wasakhda, Dib-u-isticmaalka biyaha, wasakhda nadiifinta COD, BOD si kor loogu qaado heerka.