Motsi bioreactor na gado sabon nau'in ingantaccen ingantaccen na'urar kula da najasa ce da aka ƙera bisa tushen iskar oxygen lamba ta nazarin halittu da kuma gadon ruwa na halitta a cikin 'yan shekarun nan. A cikin reactor, filler zai iya motsawa tare da ruwa, kuma a hankali ya girma biofilm a samansa, kuma kwayoyin halitta a kan biofilm suna amfani da kwayoyin halitta a cikin najasa don metabolism, don cimma manufar kawar da gurɓataccen ruwa a cikin ruwa. . Za'a iya yin amfani da magungunan bioreactors na gado a ko dai aerobic ko yanayin anaerobic. A cikin injinan motsa jiki na motsa jiki na motsa jiki, motsin tattarawa ya fi girma ta hanyar iska, yayin da a cikin yanayin anoxic da anaerobic, motsin tattarawar ana aiwatar da shi ta hanyar tashin hankali na inji ko kuma ta hanyar iskar gas da anaerobic ke samarwa.